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Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Interaction Between AM Radio Broadcast Antennas and Overhead Power Lines  

Science Conference Proceedings (OSTI)

Metallic structures, power lines or otherwise, can affect the operation of AM radio broadcast station antennas if the dimensions of those structures are related to the wavelength of the radio signal at the station's operating frequency. For power lines, the dimensions of interest can be either the height of the support structures themselves or the length of a loop formed by adjacent structures, the shield wires connecting them, and the return path in the earth. When resonance occurs between the power lin...

2012-05-10T23:59:59.000Z

2

The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power transmission Lines  

SciTech Connect

Due to material discontinuity and inherited forming mechanism from a crimped-type splice connector, the associated conductor-connector system is highly sensitive to system components aging, especially during high-temperature operations. Furthermore, due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than the original designed values. This has led to the accelerated aging and degradation of conductor-connector systems. The implications of connector aging are two-fold: (1) significant increase in resistivity of the splice connector and (2) significant reduction in the connector clamping strength. Therefore, splice connectors are one of the weakest links in the electric power transmission infrastructure. In this paper we will discuss the reliability of splice connector systems, including both single stage and two stage splice connectors, used in ACSR conductor of transmission lines under high temperature operations.

Wang, Jy-An John [ORNL; Jiang, Hao [ORNL; Ren, Fei [ORNL

2012-01-01T23:59:59.000Z

3

Overhead Line Worker Practices Survey: 2012  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) has undertaken a multiyear research project to identify and describe leading industry overhead line worker practices. This effort is intended to identify and document industry overhead distribution line work practices of note, identify shortterm products (such as practices guidelines) that EPRI can ...

2012-08-23T23:59:59.000Z

4

Bimetallic steel/aluminum wire for overhead telecommunication lines  

Science Conference Proceedings (OSTI)

for power transmission and overhead telecommunication lines and other .... " Method of manufacture of bimetallic wire for, e.g., trolley-bus cable or rods, n Inven-.

5

Overhead Transmission Line Inspector Workshop Proceedings - 2012  

Science Conference Proceedings (OSTI)

 This report presents the proceedings of the Electric Power Research Institute (EPRI) Overhead Transmission Line Inspector Workshop, which was held Monday, July 30, through Wednesday, August 1, 2012, at the Hyatt Place Hotel and at Georgia Power’s Klondike Training Center in Lithonia, Georgia.The first half day of the workshop focused on inspection and assessment, with a participant roundtable discussion, followed by utility, vendor and EPRI presentations on the ...

2012-11-14T23:59:59.000Z

6

IPF Overhead Line Uprating Wizard  

Science Conference Proceedings (OSTI)

The Increased Power Flow (IPF) Wizard ranks various line uprating methods available on the basis of a series of relatively simple questions about the rating increase needed, the condition of the line, regulatory restrictions, and basic design parameters of the existing line. The Wizard’s knowledge base contains 17 different uprating methods selected and defined by the contractors. A series of 22 questions concerning such variables as line rating assumptions, physical condition, and permitting were define...

2009-03-17T23:59:59.000Z

7

HVDC Overhead Line Performance Study  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) is documenting the various factors that should be considered when designing and building new high-voltage direct current (HVDC) lines or when converting AC lines to HVDC. Given the limited number of HVDC lines that have been designed and built around the world, even some basic factors (for example, insulator flashover in severely contaminated regions) are not completely understood. This report concerns a crucial first step in better understanding and improving...

2011-08-02T23:59:59.000Z

8

Overhead electric power transmission line jumpering system for bundles of five or more subconductors  

DOE Patents (OSTI)

Jumpering of electric power transmission lines at a dead end tower. Two transmission line conductor bundles each contain five or more spaced apart subconductors (5) arranged in the shape of a cylinder having a circular cross section. The ends of each bundle of subconductors are attached with insulators to a dead end tower (1). Jumpering allows the electric current to flow between the two bundles of subconductors using jumper buses, internal jumper conductors, and external jumper conductors. One or more current collecting jumper buses (37) are located inside each bundle of subconductors with each jumper bus being attached to the end of a subconductor. Small-diameter internal jumper conductors (33) are located in the inherently electrically shielded area inside each bundle of subconductors with each subconductor (except ones having an attached jumper bus) having one internal jumper conductor connected between that subconductor's end and a jumper bus. Large-diameter external jumper conductors (9) are located outside each bundle of subconductors with one or more external jumper conductors being connected between the jumper buses in one bundle of subconductors and the jumper buses in the other bundle.

Winkelman, Paul F. (Beaverton, OR)

1982-01-01T23:59:59.000Z

9

Emerging and Future Inspection of Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This technical update report describes research by the Electric Power Research Institute (EPRI) into emerging and future overhead electric transmission line inspection and assessment technologies. In 2008, EPRI published a report entitled Future Inspection of Overhead Transmission Lines (product 1016921) that documented scenarios and viable technologies that could be applied for the inspection of transmission lines over a multi-decade timeframe. That document was intended to provide a roadmap for near- a...

2011-12-22T23:59:59.000Z

10

Guide for Selection of Overhead Line Components and Design Parameters  

Science Conference Proceedings (OSTI)

This report outlines the contents for the Electric Power Research Institute (EPRI) report Guide for Selection of Overhead Line Components and Design Parameters that is to be developed under the Design and Construction—Approach and Practice project. It identifies the topics to be covered and the scope to be developed for each topic. New topics will be added to the list whenever such needs arise. Detailed information suitable for use in the design of overhead lines on a few topics will be ...

2012-12-31T23:59:59.000Z

11

Nondestructive Testing of Overhead Transmission Lines: Numerical and Experimental Investigation  

E-Print Network (OSTI)

Overhead transmission lines are periodically inspected using both on-ground and helicopter-aided visual inspection. Factors including sun glare, cloud cover, close proximity to power lines and the rapidly changing visual circumstances make airborne inspection of power lines a particularly hazardous task. In this research, a finite element model is developed that can be used to create the theoretical dispersion curves of an overhead transmission line. The complex geometry of the overhead transmission line is the primary reason for absence of a theoretical solution to get the analytical dispersion curves. The numerical results are then verified with experimental tests using a non-contact and broadband laser detection technique. The methodology developed in this study can be further extended to a continuous monitoring system and be applied to other cable monitoring applications, such as bridge cable monitoring, which would otherwise put human inspectors at risk.

Kulkarni, Salil Subhash

2009-12-01T23:59:59.000Z

12

Overhead Line Loading Program (OHLOAD) Version 2.0  

Science Conference Proceedings (OSTI)

OHLOAD allows the user to calculate thermal ratings and conductor temperatures for overhead power transmission lines. EPRI's Overhead Line Loading Program (OHLOAD 2.0) calculates bare conductor temperatures and thermal ratings based on user-specified weather parameters and user-specified electrical load. The calculation methods available in OHLOAD are based on various CIGRE, IEEE, and EPRI documents. WindowsXP, Vista, and Windows 7. The PC must have at least 20 MB of free disk space and a Pentium II proc...

2012-05-01T23:59:59.000Z

13

Thermal Models of Overhead Transmission Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

Bare stranded overhead transmission line conductorsreferred to as aluminum conductor steel reinforced ACSRtypically consist of at least two layers of aluminum strands, helically stranded around a core consisting of steel wires. The current that flows through such conductors is located predominantly in the aluminum layers while the steel core provides mechanical strength and limits sag at high temperature. The lack of new line construction combined with the decoupling of transmission from power generatio...

2010-12-23T23:59:59.000Z

14

HVDC Overhead Line Design Guide: 2013 Interim Report  

Science Conference Proceedings (OSTI)

This report is an updated version of the Electric Power Research Institute (EPRI) report HVDC Overhead Line Design Guide (1024326). An outline developed in 2012 identified all of the topics to be covered by the report. A draft for high-voltage, direct-current (HVDC) ground electrodes and another for HVDC conductor selection were also included in the 2012 version. These topics were finalized in 2013, and the topics of HVDC line performance and insulation were added to the report. All four ...

2013-12-23T23:59:59.000Z

15

Guide for High Temperature Operation of Overhead Lines: 2012 Updates  

Science Conference Proceedings (OSTI)

This Guide assists users in raising the capacities of overhead transmission lines by increasing the conductor temperature. It is based on a wealth of knowledge accumulated from extensive research conducted internally at the Electric Power Research Institute (EPRI), information from manufacturers, and results from research conducted outside of EPRI. The Guide has evolved from a collection of numerous EPRI reports published in the past, including Effect of High-Temperature Cycling on Conductor ...

2012-12-12T23:59:59.000Z

16

Guide for Operating Overhead Lines at High Temperatures  

Science Conference Proceedings (OSTI)

This Guide assists users in raising the capacities of overhead transmission lines by increasing the conductor temperature. It is based on a wealth of knowledge accumulated from extensive research conducted internally at the Electric Power Research Institute (EPRI), information from manufacturers, and results from research conducted outside of EPRI. The Guide evolved from a collection of numerous EPRI reports published in the past, for example, Effect of High-Temperature Cycling on Conductor Systems (EPRI...

2010-12-13T23:59:59.000Z

17

Overhead Transmission Line Lightning and Grounding Reference Book 2012  

Science Conference Proceedings (OSTI)

In North America and many other parts of the world, lightning remains the primary cause of transmission line outages, momentary interruptions, and reliability and maintenance problems. The lightning performance of transmission lines may be improved by applying overhead ground wires, providing a low impedance connection to ground, and selecting appropriate insulation levels for the phase conductors. The success of these measures is not always ...

2012-12-12T23:59:59.000Z

18

Future Inspection of Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This report documents scenarios and technologies that can be applied in the future for the inspection of transmission lines. Scenarios describe the utilization of a range of concepts, including distributed sensors, unmanned airborne vehicles, RF communication, and robotics. An approach to performing demonstration projects using currently available technologies is provided and will be implemented in the following phases of the project.

2008-06-23T23:59:59.000Z

19

Thermal and Corona Models of Overhead Transmission Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

In an attempt to meet increasing demand by pushing more power through existing lines, the power industry has frequently resorted to operating overhead transmission lines at higher temperatures than ever before. There is reason to believe that the empirical models developed in the past for determining conductor temperature and corona performance are in error at these elevated temperatures. In an effort to safely and reliably push more power, it will be important for utilities to understand the temperature...

2007-12-11T23:59:59.000Z

20

Overhead Transmission Line Inspection - Online Training (OTLOT) Version 9.0  

Science Conference Proceedings (OSTI)

The EPRI Overhead Transmission Line Inspection - Online Training is a CD-based application for training on how to complete overhead transmission line inspections.It contains fourteen modules of instruction on overhead transmission line inspections. A browser interface helps the user navigate through the interactive training. As the user moves through the module, it provides instruction, application practice, and review questions.Benefits & ...

2013-12-16T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

PRE-SW EPRI Overhead Transmission Line Inspection - Online Training (OTLOT) Version 9.0, Beta  

Science Conference Proceedings (OSTI)

The EPRI Overhead Transmission Line Inspection - Online Training is a CD-based application for training on how to complete overhead transmission line inspections.It contains fourteen modules of instruction on overhead transmission line inspections. A browser interface helps the user navigate through the interactive training. As the user moves through the module, it provides instruction, application practice, and review questions.    Benefits ...

2013-08-25T23:59:59.000Z

22

Electrical and mechanical design criteria for EHV and UHV: overhead transmission lines  

Science Conference Proceedings (OSTI)

The results are presented of a program devoted to the selection of electrical and mechanical design criteria and parameters for overhead power transmission lines for ac systems rated at from 345 to 1100 kV and for dc systems rated at from 600 to 1200 kV. Information is included on the environmental effects, i.e., audible noise and electric fields, of the lines, mechanical and economic requirements, safety, failures, grounding, and lightning protection. (LCL)

Not Available

1980-06-01T23:59:59.000Z

23

Power outages often spur questions around burying power lines ...  

U.S. Energy Information Administration (EIA)

Despite the cost, underground power lines are often found in urban areas, where the density of the required overhead wire would cause significant obstructions.

24

Life-Cycle Cost Analysis Overhead Transmission Lines (LCCA) Version 1.1  

Science Conference Proceedings (OSTI)

The LCCA software is a tool to assist transmission line designers in selecting the optimized design for an overhead line by comparing the life-cycle cost of various design options. Windows2000, XP, and Vista Excel 2003 and 2007

2011-12-15T23:59:59.000Z

25

Bounding Communication Energy Overhead in Parallel Networks with Power-Delay Scalability  

Science Conference Proceedings (OSTI)

We propose the energy scalability and power-delay product scalability as new metrics for calculating and estimating boundaries on the energy overhead of parallel processing systems. Because both properties consider network topology and the algorithm ... Keywords: energy overhead, communication overhead, energy scalability, power-delay scalability

James S. Tandon; Steven E. Butner

2008-12-01T23:59:59.000Z

26

Live Working Considerations in Design and Construction of Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

Live working (LW) on overhead transmission lines is the performance of maintenance, construction, and inspection of equipment and circuits that are energized or that may become energized. This report discusses aspects of design and construction of overhead transmission lines that are important to (LW) and examines design modifications that can significantly impact the safe, efficient, and cost-effective performance of LW. This guidance should help line designers identify ways to incorporate the ...

2013-12-02T23:59:59.000Z

27

Assessment of Environmental Effects of Current Underground and Overhead Transmission Line Construction and Maintenance in the United States  

Science Conference Proceedings (OSTI)

This report assesses environmental effects of current underground and overhead transmission line construction and maintenance in the United States.

2008-12-18T23:59:59.000Z

28

Evaluation of Instrumentation and Dynamic Thermal Ratings for Overhead Lines  

Science Conference Proceedings (OSTI)

In 2010, a project was initiated through a partnership between the Department of Energy (DOE) and the New York Power Authority (NYPA) to evaluate EPRI?s rating technology and instrumentation that can be used to monitor the thermal states of transmission lines and provide the required real-time data for real-time rating calculations. The project included the installation and maintenance of various instruments at three 230 kV line sites in northern New York. The instruments were monitored, and data collection and rating calculations were performed for about a three year period.

Phillips, A.

2013-01-31T23:59:59.000Z

29

Dynamic Simulation of Lightning Attachment to Earthed Overhead Transmission Line Structures  

Science Conference Proceedings (OSTI)

In this paper a novel method is presented to investigate lightning stroke attachment to earthed overhead transmission line structures. This method is based on the dynamic simulation of lightning downward leader movement toward the ground in three dimensions. ... Keywords: charge simulation method, downward leader, lightning, transmission line, upward leader

Mohammad Reza Bank Tavakoli; Behrooz Vahidi

2010-07-01T23:59:59.000Z

30

EPRI-GTC Overhead Electric Transmission Line Siting Methodology  

Science Conference Proceedings (OSTI)

This report explains and documents a standardized process that utilities could use to improve the way transmission line routes are evaluated and selected.

2006-02-06T23:59:59.000Z

31

Proceedings of the Inspection and Assessment of Overhead Transmission Line Equipment Workshop: 13 – 15 May 2003, Monterey, CA  

Science Conference Proceedings (OSTI)

This report contains papers and materials presented at the Inspection and Assessment of Overhead Transmission Line Equipment Workshop held in Monterey, California in May of 2003.

2003-12-15T23:59:59.000Z

32

EPRI Overhead Transmission Line Inspection - Online Training (OTLOT) Version 8.0  

Science Conference Proceedings (OSTI)

This course describes the different types of compression connectors for overhead transmission lines and their application, construction, degradation and failure modes, inspection and assessment methods, and remediation techniques.    Benefits & Value:Proper Construction and Installation of Compression Connectors will allow for the following:Self-paced learning opportunityReduced cost of travel and time outside the ...

2012-11-13T23:59:59.000Z

33

Survey of Utility Practices for Rating Overhead Transmission Line and Component Condition: Survey Results  

Science Conference Proceedings (OSTI)

Utilities have expressed an interest in using analytical tools and methods for evaluating the condition of their overhead transmission facilities and line components. These analytical techniques are intended to provide a systematic approach to ensure that planned expenditures for inspection and maintenance programs are being applied in the most cost-effective way that benefits the organization and public as a whole. Prescriptive or time-based methods used by the utilities for many years might not be ...

2013-12-22T23:59:59.000Z

34

Proceedings of the First Overhead Transmission Line Equipment and Maintenance Practices Conference: 14-16 May 2002, Monterey, CA  

Science Conference Proceedings (OSTI)

This report contains the presentation material and papers from the 1st Overhead Transmission Line Equipment and Maintenance Practices Conference held in Monterey, California, May 14-16, 2002.

2002-07-29T23:59:59.000Z

35

Inspection and Assessment of Overhead Transmission Line Hardware, Conductors and Shield Wires: Technology Overview of Conductor Inspection Tools  

Science Conference Proceedings (OSTI)

This report summarizes in detail the theory and operation of technologies for the inspection of overhead transmission line conductors and evaluates their effectiveness. It covers existing technologies and technologies that are commercially available but have the promise of becoming effective screening and, in some cases, predictive tools in the future. Technologies described and assessed include:The Cormon overhead line corrosion detectorThe Cross-Checker ...

2013-12-22T23:59:59.000Z

36

Honeybees and Power Line EMF Environments  

Science Conference Proceedings (OSTI)

This Resource Paper reviews research relevant to potential interactions between electric and magnetic field environments in the vicinity of high voltage overhead transmission lines. The paper deals first, with a description of a series of electric field studies conducted in a power line environment followed by mechanism studies under controlled conditions; second, with studies of the ability of bees to discriminate static and alternating magnetic fields; and third, with a study of native bees in a power ...

2010-12-06T23:59:59.000Z

37

Simulation of atmospheric overvoltages on 400kV power lines in transmission system  

Science Conference Proceedings (OSTI)

External overvoltages are unambiguously caused by atmospheric overvoltages on overhead lines an emerges during storms. The paper presents simulation results of atmospheric overvoltages in slovak transmission system, which were realized in purpose of ... Keywords: overhead power lines, overvoltages, power system, surge arrester

Martin Mucha; Žaneta Eleschová; Anton Belá?; František Janí?ek; Peter Szathmáry

2006-09-01T23:59:59.000Z

38

Mutual Design Considerations for Overhead AC Transmission Lines and Gas Transmission Pipelines, Volume 1: Engineering Analysis  

Science Conference Proceedings (OSTI)

This reference book presents data on an investigation into the mutual effects of electric power transmission lines and natural gas transmission pipelines sharing rights-of-way. Information is useful to both power and pipeline industry users.

1978-09-01T23:59:59.000Z

39

Optimizing the replacement of overhead lines in rural distribution systems with respect to reliability and customer value  

E-Print Network (OSTI)

In this paper we present a method for establishing the value of a network’s components from a reliability worth perspective. The method can be applied to a general distribution system i.e. both for radial and meshed network systems. Moreover, this paper shows results from an application study for a rural network system that is dominated by overhead lines. The purpose of the study was to establish the value of a secondary feeding point. Further, the method is used to establish the best replacement strategy for the concerned overhead lines.

Patrik Hilber; Bengt Hällgren; Lina Bertling

2005-01-01T23:59:59.000Z

40

Thermal and Corona Models of Overhead Transmission Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

In order to provide electric power to a society that is continuously increasing its power consumption, without having to sustain huge capital expenditures for new infrastructure, the power industry is pushing more power through existing lines. Although this results in conductors operating at higher temperatures, which in turn results in higher thermal and mechanical losses, the industry is finding it to be a cost-effective approach when compared to alternatives. The demand for electric power over transmi...

2008-12-23T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Overhead Lineworker Practices: Lincoln Electric System  

Science Conference Proceedings (OSTI)

This report describes the findings of an overhead distribution line worker practices immersion conducted by the Electric Power Research Institute (EPRI) with the Lincoln Electric System (LES). The immersion was conducted as part of a multiyear effort by EPRI to identify noteworthy line worker practices related to the management of overhead distribution systems. More specifically, this report profiles the practices (the people, processes, and technology) in place at LES, a Lincoln, Nebraskabased utility. ...

2011-12-21T23:59:59.000Z

42

Power line detection system  

DOE Patents (OSTI)

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

Latorre, V.R.; Watwood, D.B.

1994-09-27T23:59:59.000Z

43

Power line detection system  

DOE Patents (OSTI)

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

Latorre, Victor R. (Tracy, CA); Watwood, Donald B. (Tracy, CA)

1994-01-01T23:59:59.000Z

44

Proposed Norton-Tesuque 115 kV overhead transmission line and substation in Sante Fe, New Mexico  

SciTech Connect

Construction is proposed of a 115/12.5-kilovolt (kV), 10/12.5-megavolt-ampere (MVA) substation in the Tesuque area and of 9.02 miles of 115-kV overhead transmission line from the Norton Station to the new substation in an area approximately three miles north of Sante Fe, New Mexico. The project would involve the granting of a 100-foot width right-of-way by the Tesuque Pueblo, the construction of the substation on the Tesuque Pueblo Indian Reservation between the Rio Tesuque and New Mexico 85, the addition of a 115-kV breaker bay at Norton Station, and the installation of two underground 12.47-kV distribution feeders to connect to existing ones in the Tesuque area. In addition, the station would be designed to accommodate one future underground 12.47-kV feeder that would terminate at a future distribution line in the Tesuque area. The preferred transmission line route would originate at the Norton Station and proceed east-northeast up Calabasa Arroyo to a point approximately 1.1 miles north of the southwest corner of the Tesuque Pueblo boundary. From this point the route would proceed east to the proposed substation site.

1985-06-01T23:59:59.000Z

45

Field Guide: Construction and Inspection of Compression Connectors for Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This field guide provides a general, field-deployable resource for utility professionals who are engaged in the construction and installation of compression connectors, as well as those who are involved with in-service inspection and assessment of this line component. It describes typical applications, compression connector basics, construction methods, common assembly errors, and inspection methods. In addition, it provides a list of relevant technical and training resources.The ...

2013-08-15T23:59:59.000Z

46

Transport Devices for Overhead Conductors: State of the Art Review and Promising Technologies  

Science Conference Proceedings (OSTI)

This report summarizes activities surrounding the possible development of a transmission line inspection robot as a transport device for overhead conductors. EPRI research on technologies for inspection of transmission line conductors had identified the need for a highly automated transport device to apply available inspection technologies along the length of a transmission line with minimal human intervention. A literature search was performed to identify past robotics work applied to overhead power lin...

2003-12-11T23:59:59.000Z

47

Power Line Calculator for DOS  

Science Conference Proceedings (OSTI)

The Power Line Calculator (PLC) for DOS, version 1.0, is a program that describes the electrical characteristics of a transmission or distribution system given user-defined input. This input may consist of a combination of operating currents and phases, symmetric components, power factor, and real or reactive power. The program also allows the user to designate whether currents are present on the system neutral or in the ground. The PLC assumes that any value entered by the user remains fixed (e.g., phase current, power factor), and for underdetermined systems, basic default assumptions are incorporated: the power factor is held at or near 1.0, the net phase current is kept at or near zero, and the phase conductor currents are kept balanced. The program operates under PC/MS-DOS version 3.3 or later, and the output is available in both tabular and graphic formats.

Silva, J.M. (Enertech Consultants, Campbell, CA (United States))

1992-11-01T23:59:59.000Z

48

Radial Temperature Gradients of Overhead Conductors: Impact on Sag and Rating Calculations  

Science Conference Proceedings (OSTI)

It is critical for power companies to have a good understanding of the temperatures at which the bare phase conductors in their overhead transmission lines operate, particularly during system emergencies. Overhead lines are designed to have adequate clearance and normal aging for a maximum allowable conductor temperature (MACT). At or near the MACT, the electrical clearances to people, objects, buildings, and other lower-voltage conductors are at their minimum, and the design limit on loss of ...

2012-12-12T23:59:59.000Z

49

HVDC Overhead Transmission Guide  

Science Conference Proceedings (OSTI)

This report is the initial version of a new EPRI publication, the HVDC Overhead Line Design Guide. The main objective of the report is to present a proposed outline for the guide so that users can review and discuss the content. The outline will then be fine-tuned with users to meet their needs. Topics unique to high-voltage direct current (HVDC) systems have been identified and included in the outline. The topics will be addressed and design information added each year. The ultimate goal ...

2012-12-12T23:59:59.000Z

50

Magnetic field exposure assessment for adult residents of Maine who live near and far away from overhead transmission lines  

Science Conference Proceedings (OSTI)

Sixty-Hz magnetic field exposures were measured for 45 adult residents of Maine. Thirty of the subjects resided near rights-of-way (ROWs) with either 345- and 115-kV transmission lines, or ROWs with only 115-kV transmission lines; fifteen resided far from any transmission lines. Personal exposure data for a single 24-hour period was acquired with the EMDEX. The EMDEX's event-marker button was used to partition exposures into Home and Away components. Also, three area measurements were taken for each subject during the personal exposure measurement period: (1) 24-hr fixed-site bedroom measurement with a second EMDEX; (2) Spot measurements in at least three rooms of every residence; and (3) Spot measurements outside each residence. Residence near transmission lines highly loaded during the measurement period was associated with increased Home and Total exposure relative to a far-away population. Average exposure level while away from home was uniform (at about 2 mG) throughout the study population. On a quantitative level, Home exposure was correlated equivalently with Spot-In (r = .70) and the 24-hr fixed site measurement (r = .68). Correlations of area measurements with Total exposure were weaker because of the dilution effect of Away exposure (r = .64 for Spot-In; r = .61 for 24-h Bedroom). Away and Home exposures were not correlated (r = .14), which reinforced our confidence that the participants used the EMDEX correctly. The data suggest the need for caution before inferences are drawn about total personal exposure from area measurements. The study demonstrates the feasibility of obtaining valid measures of magnetic-field exposure with the personal exposure monitors that have been developed.

Kavet, R.; Silva, J.M.; Thornton, D. (Enertech Consultants, Campbell, CA (United States))

1992-01-01T23:59:59.000Z

51

Requirements for Power Plant and Power Line Development (Wisconsin) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Requirements for Power Plant and Power Line Development (Wisconsin) Requirements for Power Plant and Power Line Development (Wisconsin) Requirements for Power Plant and Power Line Development (Wisconsin) < Back Eligibility Agricultural Commercial Construction Developer Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Wind Solar Program Info State Wisconsin Program Type Siting and Permitting Provider Public Service Commission of Wisconsin

52

Sierra Pacific Power Company Alturas Transmission Line Project, Final Environmental Impact Report/Environmental Impact Statement. Volume 3: Appendices  

Science Conference Proceedings (OSTI)

Sierra Pacific Power Company has proposed the construction and operation of a 345,000 volt overhead electric power transmission line from Alturas, California to Reno, Nevada. This Environmental Impact Report/Environmental Impact Statement will assess the potential environmental impacts of the proposed project and alternatives. This report contains Appendices A--I which contain the following: glossary/abbreviations; scoping report; structure coordinate summary; air quality; biological resources; geology; noise; visual contrast rating forms; and cultural resources.

NONE

1995-11-01T23:59:59.000Z

53

Application Guide for Determining Maximum Switching Transient Overvoltages of Overhead Lines Rated 100 kV and Above Using the Electr omagnetic Transients Program (EMTP)  

Science Conference Proceedings (OSTI)

In recent years, through attrition and in other ways, utilities have lost many of the engineers that once performed time-domain (transient) simulations of their power systems. As a result, using the electromagnetic transients program (EMTP) to perform time-domain simulations of the power system has become a lost art; and, as a consequence, such tasks as being able to easily determine the maximum transient overvoltage for a particular transmission line have become arduous for some utilities. At the same t...

2011-11-30T23:59:59.000Z

54

Power line communications for smart grid applications  

Science Conference Proceedings (OSTI)

Power line communication, that is, using the electricity infrastructure for data transmission, is experiencing a renaissance in the context of Smart Grid. Smart Grid objectives include the integration of intermittent renewable energy sources into the ...

Lars Torsten Berger, Andreas Schwager, J. Joaquín Escudero-Garzás

2013-01-01T23:59:59.000Z

55

Proceedings of the Increased Power Flow Workshop  

Science Conference Proceedings (OSTI)

This report documents the proceedings of the Electric Power Research Institute (EPRI) Increased Overhead Transmission Capacity Workshop. The workshop was held on August 13, 2013, at the offices of City Public Service in San Antonio, Texas. Participants included members of the EPRI Increased Overhead Transmission Capacity Task Force. The workshop was a joint effort of two EPRI research projects: (1) Ratings for Overhead Lines, and (2) Impact of High-Temperature Operation of Overhead ...

2013-11-20T23:59:59.000Z

56

SMB Host Processor Overhead  

NLE Websites -- All DOE Office Websites (Extended Search)

SMB SMB SMB Description There are two benchmarks included here. The msg_rate test measures the sustained MPI message rate using a communication pattern found in many real applications. For a complete explanation of the routine refer to http://www.cs.sandia.gov/smb/msgrate.html. The mpi_overhead test uses a post-work-wait method using MPI non-blocking send and receive calls to measure the user level overhead of the respective MPI calls. For a complete explanation of the routine refer to http://www.cs.sandia.gov/smb/overhead.html. Download SMB tar file How to Build The source files are in the src directory, in smb_1.0-1/src/mpi_overhead and smb_1.0-1/src/msgrate. Edit the Makefile for your environment and type 'make.' How to Run The executables run a single message at a time. The "run_script" scripts

57

Modeling and analysis of electrical power lines for broadband power line communications.  

E-Print Network (OSTI)

??This research seeks to expand the knowledge in the characteristics of power lines and to develop a channel model that can be used for designing… (more)

Meng, Han.

2008-01-01T23:59:59.000Z

58

Perspective: Power Lines and Motor Vehicle Electronics  

Science Conference Proceedings (OSTI)

Recent news reports have suggested that the operation of automotive electronic systems (including sudden acceleration) could be affected by the electric and magnetic fields associated with power transmission lines. Based on electromagnetic fundamentals and knowledge of the levels of electric fields, magnetic fields and RF fields from transmission lines, one can evaluate the possibility of an interaction between these exposures and the electronic systems within automobiles, both electric and conventional.

2010-06-06T23:59:59.000Z

59

Concurrent Wind Cooling in Power Transmission Lines  

SciTech Connect

Idaho National Laboratory and the Idaho Power Company, with collaboration from Idaho State University, have been working on a project to monitor wind and other environmental data parameters along certain electrical transmission corridors. The combination of both real-time historical weather and environmental data is being used to model, validate, and recommend possibilities for dynamic operations of the transmission lines for power and energy carrying capacity. The planned results can also be used to influence decisions about proposed design criteria for or upgrades to certain sections of the transmission lines.

Jake P Gentle

2012-08-01T23:59:59.000Z

60

Power Line Calculator for Windows[trademark  

SciTech Connect

The Power Line Calculator (PLC) for Windows [trademark], version 1.0, is a program that describes the electrical characteristics of a transmission or distribution system given user-defined input. This input may consist of a combination of operating currents and phases, symmetric components, power factor, and real or reactive power. The program also allows the user to designate whether currents are present on the system neutral or in the ground. The PLC assumes that any value entered by the user remains fixed (e.g., phase current, power factor), and for underdetermined systems, basic default assumptions are incorporated: the power factor is held at or near 1.0, the net phase current is kept at or near zero, and the phase conductor currents are kept balanced. The program operates through a graphical user interface provided by Microsoft[reg sign] Windows [trademark] (version 3.1 or higher required), and the output is available in both tabular and graphic formats.

Silva, J.M. (Enertech Consultants, Campbell, CA (United States))

1992-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Kentucky Transmission Line Siting Methodology  

Science Conference Proceedings (OSTI)

EPRI, in conjunction with Georgia Transmission Corporation (GTC) and Photo Science, Inc. (PSI), developed a standardized methodology for siting overhead electric transmission lines. EPRI report 1013080, EPRI-GTC Overhead Electric Transmission Line Siting Methodology, published February 2006, provides additional information. This methodology has been applied in Georgia and currently is being applied to projects in Kentucky by East Kentucky Power Cooperative and E.ON U.S. on behalf of Louisville Gas and El...

2007-12-18T23:59:59.000Z

62

Method for decreasing arbitration overhead  

SciTech Connect

This invention is a method for decreasing the arbitration overhead required to transfer messages on a shared multiprocessor bus.

Bergey, A.L. Jr.; Coale, J.L.

1983-12-01T23:59:59.000Z

63

Sierra Pacific Power Company Alturas Transmission Line Project, Final Environmental Impact Report/Environmental Impact Statement. Volume 2: Comments and responses  

Science Conference Proceedings (OSTI)

Sierra Pacific Power Company has proposed the construction and operation of a 345,000 volt overhead electric power transmission line from Alturas, California to Reno, Nevada. This Environmental Impact Report/Environmental Impact Statement will assess the potential environmental impacts of the proposed project and alternatives. This report contains public comments which were received on the Draft EIR/S. Significant issues may be identified through public and agency comments.

NONE

1995-11-01T23:59:59.000Z

64

Overhead Distribution Vegetation Challenges  

Science Conference Proceedings (OSTI)

It is not uncommon for overhead distribution conductors to make contact with trees. While these incidental contacts can be either intermittent or relatively persistent, they are typically not detectable by overcurrent protection systems and do not result in interruptions on distribution circuits. This report focuses on the levels of fault currents and voltage gradients found along the fault pathway provided by trees from point of contact to earth. The purpose of this investigation was to measure the volt...

2008-12-18T23:59:59.000Z

65

On Line Power Plant Performance Monitoring  

E-Print Network (OSTI)

Maintaining efficient and reliable plant operation is a prime objective in the generation of power. These are important considerations for utilities and particularly for Independent Power Producers as they become a more significant factor in the energy supply. On Line Performance Monitoring is an effective method to improve operating efficiency, detect and correct off nominal operation and expediently analyze cause and effect component performance relationships. The heart of a Performance Monitor is a modular collection of calculations used to determine performance indices in the power plant. Calculated performance indices are used in numerous applications: 1. To measure actual component performance compared to guaranteed or expected performance 2. To identify controllable operating problems and provide operator guidance in achieving the best operation of the plant 3. To evaluate component performance and deterioration for use in a maintenance program 4. To develop cost data and incremental cost characteristics for the economic operation or dispatch of the unit with other system energy sources 5. To document plant performance compared to base line data for the demonstration of efficient operation and improved availability. This paper will discuss the many advantages associated with a Performance Monitor system, their application, the benefits which may be realized and the potential of this concept with advanced diagnostic capability.

Ahner, D. J.; Priestley, R. R.

1990-06-01T23:59:59.000Z

66

Evaluation of Connector Mitigation Measures for Lines Operating at High Temperatures  

Science Conference Proceedings (OSTI)

Test results from a previous research conducted by the Electric Power Research Institute (EPRI) indicated that connectors on overhead lines operated above 100°C may fail from high temperatures. To allow an overhead line to operate at a temperature higher than the limit imposed by the connectors, research was initiated in 2009 to develop mitigation measures for the compression connectors that have a “high ...

2012-11-14T23:59:59.000Z

67

Power Line-Induced AC Potential on Natural Gas Pipelines for Complex Rights-of-Way Configurations, Volume 1: Engineering Analysis  

Science Conference Proceedings (OSTI)

This report addresses complex common corridor coupling problems for overhead electric power transmission lines and buried natural gas pipelines. Volume 1 describes the development of analytic methods for solving such problems and presents field data used in verification efforts. Volume 2 is a handbook for graphic analysis designed for use by field personnel or others without access to a computer. Volume 3 is a user's guide for the PIPELINE computer code.

1983-05-01T23:59:59.000Z

68

Green Power Transmission Line Given New Life | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Green Power Transmission Line Given New Life Green Power Transmission Line Given New Life Green Power Transmission Line Given New Life March 11, 2010 - 4:34pm Addthis Poles for the Montana-Alberta Tie Line are unloaded outside Shelby, Mont. | Photo courtesy of Tonbridge Power Poles for the Montana-Alberta Tie Line are unloaded outside Shelby, Mont. | Photo courtesy of Tonbridge Power Stephen Graff Former Writer & editor for Energy Empowers, EERE Thanks to funds from the American Recovery and Reinvestment Act, construction of a green power transmission line stretching from Lethbridge, Alberta in Canada, down to Great Falls, Mont., was put back on track after a bank failure. Currently under construction, the Montana-Alberta Tie Line, which is owned by Toronto-based Tonbridge Power, will connect the electricity markets of

69

Mutual Design Considerations for Overhead AC Transmission Lines and Gas Transmission Pipelines: Volume 1: Engineering Analysis; Volu me 2: Prediction and Mitigation Procedures  

Science Conference Proceedings (OSTI)

This joint-effort project between Pipeline Research Committee of the A.G.A. and EPRI was initiated to develop analytical techniques for determining the induced potential on pipelines that parallel electric transmission lines. Its purpose was to develop analytical methods for prediction and mitigation of voltages induced on pipelines by nearby ac transmission lines. Required analytical techniques were developed and supported by field test results. New mitigation methods were developed and old ones evaluat...

1978-10-01T23:59:59.000Z

70

Overhead Transmission Inspection and Assessment Guidelines -- 2011  

Science Conference Proceedings (OSTI)

The emphasis within the transmission arena has shifted from designing and building new transmission facilities to optimizing the use, performance, and life of existing facilities. In the early 1990s, EPRI established an initiative to examine the capabilities and limitations of existing inspection and assessment methods and technology. One of the key needs identified was information on methods and technologies for inspecting/assessing the conditions and life expectancy of overhead transmission line compon...

2011-12-23T23:59:59.000Z

71

Overhead Transmission Inspection and Assessment Guidelines - 2012  

Science Conference Proceedings (OSTI)

The emphasis within the transmission arena has shifted from designing and building new transmission facilities to optimizing the use, performance, and life of existing facilities. In the early 1990s, EPRI established an initiative to examine the capabilities and limitations of existing inspection and assessment methods and technology. One of the key needs identified was information on methods and technologies for inspecting/assessing the conditions and life expectancy of overhead transmission line ...

2012-12-20T23:59:59.000Z

72

Sizing of Overhead Ground Wires for Lightning  

Science Conference Proceedings (OSTI)

Overhead ground wires, or shield wires, are placed on transmission lines as air terminals for lightning strikes to shield the phase conductors from direct strikes. Although of short duration, lightning strikes to ground wires may result in significant damage. Utilities are increasingly using optical fiber ground wires (OPGWs), and severe damage to the OPGWs could result in failure of the communication link. There is renewed interest in the dimensioning and testing of ground wires for improved ...

2012-12-12T23:59:59.000Z

73

Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels  

SciTech Connect

This report provides background information about (1) the electric and magnetic fields (EMFs) of high-voltage transmission lines at typical voltages and line configurations and (2) typical transmission line costs to assist on alternatives in environmental documents. EMF strengths at 0 {+-} 200 ft from centerline were calculated for ac overhead lines, and for 345 and 230-kV ac underground line and for a {+-}450-kV dc overhead line. Compacting and height sensitivity factors were computed for the variation in EMFs when line conductors are moved closer or raised. Estimated costs for the lines are presented and discussed so that the impact of using alternative strategies for reducing EMF strengths and the implications of implementing the strategies can be better appreciated.

Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A.

1994-11-01T23:59:59.000Z

74

LineScout technology: from inspection to robotic maintenance on live transmission power lines  

Science Conference Proceedings (OSTI)

Power line inspection and maintenance practices are evolving as changing market regulations, significantly increased line loading and system availability requirements put pressure on grid owners to innovate. Robotics is thus making its debut in that ... Keywords: field robotics, mechanical design, power line inspection robot, telerobotics

Nicolas Pouliot; Serge Montambault

2009-05-01T23:59:59.000Z

75

Analysis of magnetic fields produced far from electric power lines  

Science Conference Proceedings (OSTI)

In this paper, the authors develop a simple and general method for analyzing the magnetic fields produced by power lines at far distances, that is, at distances large in comparison to the spacing between the line's phase conductors. Magnetic fields produced far from conventional power lines have remarkably simple properties. The authors present formulae for the fields produced by various conventional and unconventional power line configurations; included are line designs characterized by reduced magnetic-field levels. Errors in the formulae are less than [plus minus]10% at the edge of a typical transmission right-of-way.

Kaune, W.T. (Enertech Consultants Campbell, CA (United States)); Zaffanella, L.E. (High Voltage Transmission Research Center, Lenox, MA (United States))

1992-10-01T23:59:59.000Z

76

Computing criticality of lines in power systems  

E-Print Network (OSTI)

Abstract — We propose a computationally efficient method based on nonlinear optimization to identify critical lines, failure of which can cause severe blackouts. Our method computes criticality measure for all lines at a time, as opposed to detecting a single vulnerability, providing a global view of the system. This information on criticality of lines can be used to identify multiple contingencies by selectively exploring multiple combinations of broken lines. The effectiveness of our method is demonstrated on the IEEE 30 and 118 bus systems, where we can very quickly detect the most critical lines in the system and identify severe multiple contingencies. I.

Ali P?nar; Adam Reichert; Bernard Lesieutre

2007-01-01T23:59:59.000Z

77

An Exact Algorithm for Power Grid Interdiction Problem with Line ...  

E-Print Network (OSTI)

Jan 10, 2012 ... An Exact Algorithm for Power Grid Interdiction Problem with Line Switching. Long Zhao(longzhao ***at*** mail.usf.edu) Bo Zeng(bzeng ***at*** ...

78

Practical on-line dvs scheduling for fixed-priority real-time systems  

E-Print Network (OSTI)

We present an on-line Dynamic Voltage Scaling (DVS) algorithm for preemptive fixed-priority real-time systems called low power Limited Demand Analysis with Transition overhead (lpLDAT). It is the first algorithm in its class to explicitly account for transition overhead, and can reduce the energy consumption by as much as 40 % when compared to previous methods. 1.

Bren Mochocki; Xiaobo Sharon Hu

2005-01-01T23:59:59.000Z

79

Characterization of AMOLED pixel circuit without power line  

Science Conference Proceedings (OSTI)

We fabricated and evaluated the simple active matrix organic light emitting diode (AMOLED) pixel circuits without power line and proved that it is useful for the AMOLED display. Without power line in the pixel circuit we got higher-aperture ratio of ... Keywords: AMOLED, OLED, Pixel circuit, Thin film transistor

Seon Pyo Hong; Dong Sung Moon; Byung Seong Bae

2012-01-01T23:59:59.000Z

80

EIS-0447: Champlain Hudson Power Express Transmission Line Project, New  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7: Champlain Hudson Power Express Transmission Line Project, 7: Champlain Hudson Power Express Transmission Line Project, New York EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York Summary This EIS evaluates the potential environmental impacts of a DOE proposal to grant a Presidential permit to Champlain Hudson Power Express, Inc., to construct, operate, maintain, and connect a new 1000-megawatt (MW) electric transmission system across the U.S.-Canada border in northeastern New York State. The proposed transmission line would run from the Canadian Province of Quebec to New York City. Public Comment Opportunities None available at this time. Documents Available for Download December 6, 2013 EIS-0447: DOE Notice of Availability of Draft Environmental Impact Statement Champlain Hudson Power Express Transmission Line Project, New York

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Monitoring of Computer Installations for Power Line ...  

Science Conference Proceedings (OSTI)

... Minutes," is based on 65 outages monitored during ... a certain number of minutes of power buffering ... The average outage rate was 0.6 incidentslmonth ...

2013-05-17T23:59:59.000Z

82

Definition: Transmission Line | Open Energy Information  

Open Energy Info (EERE)

Line Line (Redirected from Definition:Transmission lines) Jump to: navigation, search Dictionary.png Transmission Line A system of structures, wires, insulators and associated hardware that carry electric energy from one point to another in an electric power system. Lines are operated at relatively high voltages varying from 69 kV up to 765 kV, and are capable of transmitting large quantities of electricity over long distances.[1] View on Wikipedia Wikipedia Definition An overhead power line, also known as a "pylon" in some areas, is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors (most often three or four) suspended by towers or utility poles. Since most of the insulation is provided by air, overhead power lines are

83

EIS-0447: Champlain Hudson Power Express Transmission Line Project, New  

NLE Websites -- All DOE Office Websites (Extended Search)

447: Champlain Hudson Power Express Transmission Line Project, 447: Champlain Hudson Power Express Transmission Line Project, New York EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York Summary This EIS evaluates the environmental impacts of a DOE proposal to grant a Presidential permit to Champlain Hudson Power Express, Inc., to construct, operate, maintain, and connect a new 1000-megawatt (MW) electric transmission system across the U.S.-Canada border in northeastern New York State. The proposed transmission line will run from the Canadian Province of Quebec to New York City. DOE also published a notice correcting the location of the public hearing that was held on November 19, 2013. Public Comment Opportunities As of December 6, 2013 - Comment Period Extended through 1/15/14 Written comments must be received by January 15, 2014. Comments submitted

84

Protocolli Power Line Communications per applicazioni Smart Grid.  

E-Print Network (OSTI)

??In questa tesi verranno analizzati alcuni protocolli a banda larga progettati per offrire, mediante l'utilizzo di tecnologie Power Line Communications (PLC), servizi necessari per l'implementazione… (more)

Francescon, Roberto

2011-01-01T23:59:59.000Z

85

Power outages often spur questions around burying power lines ...  

U.S. Energy Information Administration (EIA)

Smart grid technology, which would allow a utility to pinpoint problems, divert power through other circuits to minimize outages, and optimize crew deployments is ...

86

Market power and welfare effects in DC power flow electricity models with thermal line losses  

Science Conference Proceedings (OSTI)

A nodal electric power network with Cournot-Nash interaction among power generators is formulated as a mixed complementarity problem. The model incorporates a direct current (DC) power flow approximation with thermal line losses to model real-time flows. ... Keywords: Electricity markets, Imperfect competition, Thermal line losses, Welfare measurement

Rastislav Ivanic; Paul V. Preckel; Zuwei Yu

2005-10-01T23:59:59.000Z

87

Living and Working Safely Around High-Voltage Power Lines.  

Science Conference Proceedings (OSTI)

High-voltage transmission lines can be just as safe as the electrical wiring in the homes--or just as dangerous. The crucial factor is ourselves: they must learn to behave safely around them. This booklet is a basic safety guide for those who live and work around power lines. It deals primarily with nuisance shocks due to induced voltages, and with potential electric shock hazards from contact with high-voltage lines. References on possible long-term biological effects of transmission lines are shown. In preparing this booklet, the Bonneville Power Administration has drawn on more than 50 years of experience with high-voltage transmission. BPA operates one of the world`s largest networks of long-distance, high-voltage lines. This system has more than 400 substations and about 15,000 miles of transmission lines, almost 4,400 miles of which are operated at 500,000 volts.

United States. Bonneville Power Administration.

2001-06-01T23:59:59.000Z

88

Learning to predict ice accretion on electric power lines  

Science Conference Proceedings (OSTI)

Ice accretion on power transmission and distribution lines is one of the major causes of power grid outages in northern regions. While such icing events are rare, they are very costly. Thus, it would be useful to predict how much ice will accumulate. ... Keywords: Ice accretion, Machine learning, NWP, SVM regression

Ashkan Zarnani; Petr Musilek; Xiaoyu Shi; Xiaodi Ke; Hua He; Russell Greiner

2012-04-01T23:59:59.000Z

89

On-Line Monitoring Plant Performance Applications at Bruce Power  

Science Conference Proceedings (OSTI)

This report describes a pilot application to develop an on-line monitoring (OLM) program for eight units at the Bruce Power nuclear power facility in Tiverton, Ontario, Canada. The ongoing pilot project, the implementation of which began in April 2011, ...

2012-10-25T23:59:59.000Z

90

Transmission Line Design and Construction  

Science Conference Proceedings (OSTI)

The power industry wants to construct reliable and cost-effective overhead lines. A reliable and cost effective line requires not only that the line and structures meet design criteria for strength, clearances, and electrical considerations, but also that it be designed for safe and easy construction and maintenance. Design and construction practices should therefore go hand in hand. Information among various departments within a utility has to be shared for mutual benefit. Communication is a key ...

2012-12-31T23:59:59.000Z

91

In-line process instrumentation for geothermal power plants  

DOE Green Energy (OSTI)

The economics of geothermal power depend on satisfactory plant reliability of continuous operation. Plant problems and extended downtime due to corrosion failures, scale buildup, or injection well plugging have affected many past geothermal projects. If in-line instrumentation can be developed to alert plant operators to correctable problems, then the cost and reliability of geothermal power will be improved. PNL has completed a problem of development of in-line corrosion and chemical instrumentation for binary cycle plants, and this technology has been used to set up a monitoring program at the Heber Binary Demonstration Power Plant. The current emphasis has shifted to development of particle meters for use on injection lines and CO/sub 2/ and pH probes for use in control of calcite scaling. Plans have been outlined to develop and demonstrate flash plant instrumentation for corrosion monitoring, scaling, steam purity, and injection line particle counting. 2 refs., 17 figs., 1 tab.

Shannon, D.W.; Robertus, R.J.; Sullivan, R.G.; Kindle, C.H.; Pierce, D.D.

1985-05-01T23:59:59.000Z

92

Definition: Transmission Line | Open Energy Information  

Open Energy Info (EERE)

Transmission Line Transmission Line Jump to: navigation, search Dictionary.png Transmission Line A system of structures, wires, insulators and associated hardware that carry electric energy from one point to another in an electric power system. Lines are operated at relatively high voltages varying from 69 kV up to 765 kV, and are capable of transmitting large quantities of electricity over long distances.[1] View on Wikipedia Wikipedia Definition An overhead power line, also known as a "pylon" in some areas, is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors (most often three or four) suspended by towers or utility poles. Since most of the insulation is provided by air, overhead power lines are

93

Testing a new direct load control power line communication system  

SciTech Connect

South Carolina Electric and Gas is currently performing direct load control communications over power lines without using a power line carrier. This is the result of testing a load management system that combines the existing substation solid-state recording with voltage regulation capability. Using the solid-state recorder's extended control functions, the existing substation tap changer, a new patent-pending power line communications technique, and a patented voltage-step load control receiver, the system extends normal two-way communication between the utility operations and the substation with a one-way power line link to virtually any load. By varying the voltage level slightly, the system digitizes up to 32 different load control messages. The new voltage-step communication technique uses the substation's load tap changer to communicate one-way with the receivers over existing power lines. South Carolina Electric and Gas and the manufacturers have been performing a two-phase test of the load control system. Phase one testing showed that the percentage of successful load control message reception was 98%. Phase two testing is still in progress. Results to date show no deterioration of reception or equipment. Conclusions thus far are that the load management system is compatible with all installed utility equipment, and offers reliable direct load control.

Weers, D.D.; Shamsedin, M.A.

1987-07-01T23:59:59.000Z

94

Methods of Using Existing Wire Lines (power lines, phone lines, internet lines) for Totally Secure Classical Communication Utilizing Kirchoff's Law and Johnson-like Noise  

E-Print Network (OSTI)

We outline some general solutions to use already existing and currently used wire lines, such as power lines, phone lines, internet lines, etc, for the unconditionally secure communication method based on Kirchoff's Law and Johnson-like Noise (KLJN). Two different methods are shown. One is based on filters used at single wires and the other one utilizes a common mode voltage superimposed on a three-phase powerline.

Laszlo B. Kish

2006-10-02T23:59:59.000Z

95

Tucson Electric Power Company Sahuarita-Nogales Transmission Line  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Appendix A Appendix A Consultation Letters Appendix A- Consultation Letters A-1 APPENDIX A CONTENTS A-2 Letter from the State Historic Preservation Office regarding Certificate of Environmental Compatibility Case No. 111: The Proposed Tucson Electric Power Company (TEP) South Substation to Nogales Transmission Line, Pima and Santa Cruz Counties, Arizona A-6 Letter from Tetra Tech, Inc. to El Paso Natural Gas, regarding the Proposed Tucson Electric Power Transmission Line Adjacent to an El Paso Natural Gas Company Pipeline A-8 Letter from Tetra Tech, Inc. to the Drug Enforcement Administration, regarding the Proposed Tucson Electric Power Transmission Line near Nogales, Arizona A-10 Letter from Tetra Tech, Inc. to the U.S. Immigration and Naturalization Service, regarding the

96

Lassoing Line Outages in the Smart Power Grid  

E-Print Network (OSTI)

Fast and accurate unveiling of power line outages is of paramount importance not only for preventing faults that may lead to blackouts, but also for routine monitoring and control tasks of the smart grid, including state estimation and optimal power flow. Existing approaches are either challenged by the \\emph{combinatorial complexity} issues involved, and are thus limited to identifying single- and double-line outages; or, they invoke less pragmatic assumptions such as \\emph{conditionally independent} phasor angle measurements available across the grid. Using only a subset of voltage phasor angle data, the present paper develops a near real-time algorithm for identifying multiple line outages at the affordable complexity of solving a quadratic program via block coordinate descent iterations. The novel approach relies on reformulating the DC linear power flow model as a \\emph{sparse} overcomplete expansion, and leveraging contemporary advances in compressive sampling and variable selection using the least-abso...

Zhu, Hao

2011-01-01T23:59:59.000Z

97

Causes and Effects of Microshocks Under Transmission Lines  

Science Conference Proceedings (OSTI)

Because the effect of a voltage on an overhead wire extends into the surrounding space, electric fields occur beneath overhead electric power transmission lines; and voltages are induced on nearby electrically conducting objects, whether vehicles, buildings, people, animals, or other similarly sized objects. Electric field induction can result in a current flow from the affected object to ground. This current flows to earth through the object's capacitance to ground and any parallel conducting ...

2013-10-07T23:59:59.000Z

98

On-Line Monitoring Diagnostic Analysis for Large Power Transformers  

Science Conference Proceedings (OSTI)

Through its Light Water Reactor Sustainability Program, Idaho National Laboratory (INL) is conducting research to develop and demonstrate the on-line monitoring capabilities of active components in existing nuclear power plants. A pilot project is currently underway to apply these capabilities to generator step-up transformers (GSUs) and emergency diesel generators (EDGs). INL and the Electric Power Research Institute (EPRI) are working together to implement the pilot project. The EPRI Fleetwide ...

2013-05-24T23:59:59.000Z

99

The Importance of Non-Data-Communication Overheads in MPI  

Science Conference Proceedings (OSTI)

With processor speeds no longer doubling every 18â??24 months owing to the exponential increase in power consumption and heat dissipation, modern high-end computing systems tend to rely less on the performance of single processing units and instead ... Keywords: Blue Gene/P, MPI, non-data-communication overheads

Pavan Balaji; Anthony Chan; William Gropp; Rajeev Thakur; Ewing Lusk

2010-02-01T23:59:59.000Z

100

A flying robotic system for power line corridor inspection  

Science Conference Proceedings (OSTI)

So far, the inspection of power line corridors is mainly carried out by manual or helicopters. However, manual inspection is very labour-intensive and inefficient. On the other hand, the cost of the inspection using helicopters is very high. Also the ...

Binhai Wang; Lei Han; Hailong Zhang; Qian Wang; Bingqiang Li

2009-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Power Efficient Scheduling for Network Applications on Multicore Architecture  

E-Print Network (OSTI)

the overhead for Stop&Go and task migration (line 8-15 inthe least overhead and take appropriate action. (line 8-15)

Kuang, Jilong

2011-01-01T23:59:59.000Z

102

Increased Power Flow Guidebook  

Science Conference Proceedings (OSTI)

The Increased Power Flow (IPF) Guidebook is a state-of-the-art and best practices guidebook on increasing power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates alternatives with case studies, and analyzes costs and benefits of differe...

2005-11-16T23:59:59.000Z

103

On-Line Monitoring Plant Performance Applications at Bruce Power  

Science Conference Proceedings (OSTI)

On-line monitoring (OLM) and advanced pattern recognition (APR) capabilities have advanced significantly over the past few years. Many utilities now have basic or advanced applications available within plants and across generating fleets. However, the effective use and integration of these capabilities into established plant reliability processes are still minimal. This OLM applications pilot project was implemented in April 2011 at the Bruce Power Nuclear Generating facility in Tiverton, Ontario, Canada...

2012-01-23T23:59:59.000Z

104

Broadband over Power Lines (BPL): FCC Emissions Compliance Guidelines  

Science Conference Proceedings (OSTI)

Broadband over power lines (BPL, a.k.a. broadband PLC) has been heralded as an opportunity for electric companies to enhance internal communication and control while delivering broadband service to areas where existing services are unavailable. The Federal Communications Commission (FCC) has published new regulations limiting radio frequency (RF) emissions from BPL equipment. This EPRI Technical Update provides an overview of the "FCC Report & Order 04-245" on BPL and gives guidance and details on the te...

2005-06-21T23:59:59.000Z

105

HIGH FREQUENCY POWER TRANSMISSION LINE FOR CYCLOTRONS AND THE LIKE  

DOE Patents (OSTI)

High-frequency power transmission systems, particularly a stacked capacitance alternating power current transmission line wherein maximum utilization of the effective conductios skin of the line conductors is achieved while enabling a low impedance to be obtained are reported. The transmission line consists of a number of flat metal strips with interleaved dielectric strips. The metal dielectric strips are coiled spirally with the axis of the spiral extending along the length of the strips, and the alternating metal strips at the output end have outwardly extending aligned lugs which are directly strapped together and connected to the respective terminals on the load. At the input end of the transmission line, similarly, the alternate metal strips are directly strapped together and connected to an altereating current source. With the arrangement described each metal strip conducts on both sides, so that the metal strips are designed to have a thickness corresponding to twice the depth of the "skin effect" conducting lamina of each conductor at the source frequency.

Armstrong, W.J.

1954-04-20T23:59:59.000Z

106

Parameters that Influence the Aging and Degradation of Overhead Conductors  

Science Conference Proceedings (OSTI)

EPRI has been investigating degradation mechanisms, inspection methods, and condition assessment methods for overhead line conductors for a few years. This report identifies conductor failure modes and discusses the associated degradation mechanisms. It further discusses methods of inspection and assessment that may be used to establish the current condition of conductors. Finally, it discusses how this data can be used to develop end-of-life criteria and estimate remaining useful life for conductors.

2003-12-22T23:59:59.000Z

107

Experience Based Seismic Verification Guidelines for Overhead Crane Systems: Volume I - Seismic Review Procedure; Volume II - Performance of Overhead Cranes in Strong Motion Earthquakes  

Science Conference Proceedings (OSTI)

This report provides guidelines that can be used to perform an experience-based seismic capability verification of overhead cranes systems at nuclear power plants. The report summarizes seismic experience data from strong-motion earthquakes for these systems and identifies the characteristics of systems that could lead to failure or unacceptable behavior in an earthquake. The seismic experience data show that overhead crane systems exhibit extremely good performance under strong-motion seismic loading, w...

2005-06-08T23:59:59.000Z

108

Achieving Near Zero SSN Power Delivery Networks by Eliminating Power Planes and Using Constant Current Power Transmission Lines  

E-Print Network (OSTI)

method to remove SSN and to increase the per-pin data rate. However, to enable power transmissions lines of all, data transition causes the supply current to switch: the high-state of data draws current from the power supply network, but the low-state of data interrupts the current flow. Due to the terminating

Swaminathan, Madhavan

109

Study on reactive power optimization problem taking the line current as state variable  

Science Conference Proceedings (OSTI)

The math model of optimization problem is established by describing the electric power network equations as the hybrid form with node voltage and line current based on ? equivalence circuit of power equipment, there the objective function is performed ... Keywords: line current, node voltage, optimal power flow, power flow, reactive power optimization

Zhang Jinsong; Wang Chengmin; Zhang Gong; Hou Zhijian

2005-10-01T23:59:59.000Z

110

Increased Power Flow Guidebook - 2012  

Science Conference Proceedings (OSTI)

The EPRI Increased Power Flow (IPF) Guidebook is a state-of-the-art and best- practices reference and guidebook on increasing the power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment, without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates the alternatives with case ...

2012-12-31T23:59:59.000Z

111

Increased Power Flow Guidebook - 2013  

Science Conference Proceedings (OSTI)

The EPRI Increased Power Flow (IPF) Guidebook is a state-of-the-art and best- practices reference and guidebook on increasing the power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment, without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates the alternatives with case ...

2013-11-18T23:59:59.000Z

112

Tucson Electric Power Company Sahuarita-Nogales Transmission Line  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Office of Fossil Energy U.S. Department of Energy 1000 Independence Avenue, S.W. Washington, DC 20585 Cooperating Agencies: U.S. Department of the Interior Bureau of Land Management U.S. Department of Agriculture Forest Service COVER SHEET Responsible Agency: U.S. Department of Energy (DOE), Office of Fossil Energy (FE) Cooperating Agencies: U.S. Department of Agriculture Forest Service (USFS), U.S. Department of the Interior Bureau of Land Management (BLM) Title: Tucson Electric Power Company (TEP) Sahuarita-Nogales Transmission Line Final Environmental Impact Statement (EIS) Location: Pima and Santa Cruz Counties, Arizona Contacts: For additional information on this Final Environmental Impact Statement (EIS), contact: For general information on the DOE

113

Tucson Electric Power Company Sahuarita-Nogales Transmission Line  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SUMMARY Office of Fossil Energy U.S. Department of Energy 1000 Independence Avenue, S.W. Washington, DC 20585 Cooperating Agencies: U.S. Department of the Interior Bureau of Land Management U.S. Department of Agriculture Forest Service Tucson Electric Power Company Sahuarita-Nogales Transmission Line Final Environmental Impact Statement January 2005 DOE/EIS - 0336 BLM Reference No. AZA 31746 SUMMARY Office of Fossil Energy U.S. Department of Energy 1000 Independence Avenue, S.W. Washington, DC 20585 Cooperating Agencies: U.S. Department of the Interior Bureau of Land Management U.S. Department of Agriculture Forest Service COVER SHEET Responsible Agency: U.S. Department of Energy (DOE), Office of Fossil Energy (FE)

114

Pipelined Match-Lines and Hierarchical Search-Lines for Low-Power Content-Addressable Memories  

E-Print Network (OSTI)

This paper presents a pipelined match-line and a hierarchical search-line architecture to reduce power in content-addressable memories (CAM). The overall power reduction is 60%, with 29% contributed by the pipelined match-lines and 31% contributed by the hierarchical search-lines. This proposed architecture is employed in the design of a 1024x144 bit ternary CAM, achieving 7 ns search cycle time at 2.89 fJ/bit/search in a 0.18 um CMOS process.

Kostas Pagiamtzis; Ali Sheikholeslami

2003-01-01T23:59:59.000Z

115

Sierra Pacific Power Company Alturas Transmission Line Project...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

transmission line to withstand expected maximum fault displacement. . ES-49 KesidualI*acf '.:, , ,,.,, .. .... ...... .. . ... . .. . .. .. . . . .. ,,. ,::.,. ,.,,, ,..,, lot...

116

Pilot Study for the Replication of the Draper Study of Leukemia, Brain Tumors, and Distance to Power Lines in California  

Science Conference Proceedings (OSTI)

In 2005, a study in the United Kingdom, referred to in this report as the Draper study, reported a positive association between residential proximity to overhead transmission lines and childhood leukemia. This report describes a pilot study that was performed to determine the feasibility of replicating this study in California. The purpose of this pilot study was to identify potential difficulties with performing this type of an evaluation in California and to design a rigorous and cost-effective methodo...

2008-02-28T23:59:59.000Z

117

Design and Performance Evaluation of an Hybrid Reservation-Polling MAC Protocol for Power-Line  

E-Print Network (OSTI)

Units) in a low-voltage power grid, share the transmission capacity of the power-line network. To make of data. Since wires exist to every household connected to the low-voltage grid, PLC systems can provideDesign and Performance Evaluation of an Hybrid Reservation-Polling MAC Protocol for Power-Line

Tinnirello, Ilenia

118

Switch bypass circuit for power line communication systems  

Science Conference Proceedings (OSTI)

An apparatus is described for coupling a power line communication signal around a switch, comprising: a first transformer having a primary winding and a secondary winding; a first inductor connected electrically in parallel with the primary winding of the first transformer, a first terminus of the primary winding of the first transformer being connected to ground; a first capacitor being connected electrically in series between a second terminus of the primary winding of the first transformer and the first inductor; a second transformer having a primary winding and a secondary winding; a second inductor connected electrically in parallel with the primary winding of the second transformer, a first terminus of the primary winding of the second transformer being connected to ground; a second capacitor being connected electrically in series between a second terminus of the primary winding of the transformer and the second inductor; a first terminus of the secondary winding of the first transformer being connected in electrical communication with a first terminus of the secondary winding of the second transformer; and a second terminus of the secondary winding of the first transformer being connected in electrical communication with a second terminus of the secondary winding of the second transformer; a transceiver connected in electrical communication with the first terminus and the second terminus of the secondary winding of the first transformer.

Shuey, K.C.

1987-08-11T23:59:59.000Z

119

Lovell-Yellowtail transmission line rebuild project, Western Area Power  

NLE Websites -- All DOE Office Websites (Extended Search)

Lovell-Yellowtail Transmission Line Rebuild Project Lovell-Yellowtail Transmission Line Rebuild Project Project overview LVYT-1_158_092512 A contractor crew worked out of the bucket truck, Sept. 25, 2012, to perform dead-ending operations as part of phase 1 of the Lovell-to-Yellowtail transmission line rebuild. (Photo by Bob Kemp) See more photos of phase 1 and 2 constuction on Flickr. Western is rebuilding the Lovell-to-Yellowtail No. 1 and No. 2 115-kV transmission lines. The 94-circuit-miles of lines are located between Lovell, Wyo., and Yellowtail Dam, Mont. The rebuilt transmission lines are needed because the original lines were built by the Bureau of Reclamation in 1956 and 1966. The project will: Ensure reliability and safety of the transmission lines Improve capability to transmit full output from Yellowtail

120

Comparison of prediction and measurement of negative sequence currents of generators connected to 345-kV asymmetrical transmission lines  

Science Conference Proceedings (OSTI)

This paper is used to evaluate the negative sequence currents (NSC) of two generators in a generation plant, which are connected to the power pool through four over-head asymmetrical 345-kV transmission lines. The simulation results by using PSS/E and ... Keywords: EMTP, PSS/E, asymmetrical transmission lines, negative sequence current, unbalance

Chi-Jui Wu; Ping-Heng Ho

2011-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Predicting the Failure of Line Post Insulator Mounting Studs Due to Aeolian Vibrations  

Science Conference Proceedings (OSTI)

This report provides experimental and numerical investigations of the line post insulator stud failures experienced by APS (Arizona Public Service) on its 69kV and 22 kV overhead power lines. The project developed a numerical model conforming to the dynamics of a line post insulator and the coupling between neighboring spans. This model can be used in estimating the dynamic loads induced on a line post insulator from Aeolian (wind-induced) vibration.

2006-06-07T23:59:59.000Z

122

Guideline for On-Line Monitoring of Nuclear Power Plant Instrument Channel Performance  

Science Conference Proceedings (OSTI)

This report provides a guideline for a utility to develop an on-line monitoring (OLM) program for evaluating instrument channel performance at nuclear power plants (NPPs).

2011-11-08T23:59:59.000Z

123

SunLine Transit Agency, Hydrogen Powered Transit Buses: Preliminary Evaluation Results  

DOE Green Energy (OSTI)

This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency.

Chandler, K.; Eudy, L.

2007-02-01T23:59:59.000Z

124

Microsoft Word - Broadband Over Power Lines_FINAL.06.01.10.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Broadband over Powerlines Can Accelerate the Transmission Smart Grid May 25, 2010 DOENETL-20101418 Broadband Over Power Lines Could Accelerate the Transmission Smart Grid...

125

EPRI Increased Power Flow Guidebook -- 2011  

Science Conference Proceedings (OSTI)

The EPRI Increased Power Flow (IPF) Guidebook is a state-of-the-art and best-practices reference and guidebook on increasing the power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates the alternatives with case studies, and analyzes th...

2011-12-12T23:59:59.000Z

126

Path specialization: reducing phased execution overheads  

Science Conference Proceedings (OSTI)

As garbage collected languages become widely used, the quest for reducing collection overheads becomes essential. In this paper, we propose a compiler optimization called path specialization that shrinks the cost of memory barriers for a wide ... Keywords: c#, garbage collection, memory management, read barriers, write barriers

Filip Pizlo; Erez Petrank; Bjarne Steensgaard

2008-06-01T23:59:59.000Z

127

Reducing memory sharing overheads in distributed JVMs  

Science Conference Proceedings (OSTI)

Distributed JVM systems by supporting Java’s shared-memory model enable concurrent Java applications to run transparently on clusters of computers. Aiming to reduce the overheads associated to memory coherence enforcement mechanisms required in ... Keywords: JVM, Java, cluster computing, concurrent Java applications, distributed shared memory, high-performance computing

Marcelo Lobosco; Orlando Loques; Claudio L. de Amorim

2005-09-01T23:59:59.000Z

128

Application of the interphase power controller technology for transmission line power flow control  

SciTech Connect

This paper presents an application of the IPC technology for controlling power flows while maintaining the natural synchronizing capacity of transmission lines. The benefits for transmission systems are a substantial increase in steady-state transmission capability, lower losses and voltage support. An example based on the 500 kV Mead-Phoenix Project demonstrates the effectiveness of the IPC solution: the addition of a 370 Mvar capacitor in parallel with the two 500 kV phase-shifting transformers increases their maximum capability from 1,300 to 1,910 MW. The concepts presented are the results of the first phase of work leading to the development of an IPC using power electronics.

Brochu, J.; Beauregard, F.; Lemay, J.; Morin, G.; Pelletier, P. [Center d`Innovation sur le Transport d`Energie du Quebec, Varennes, Quebec (Canada)] [Center d`Innovation sur le Transport d`Energie du Quebec, Varennes, Quebec (Canada); Thallam, R.S. [Salt River Project, Phoenix, AZ (United States)] [Salt River Project, Phoenix, AZ (United States)

1997-04-01T23:59:59.000Z

129

Tucson Electric Power Company Sahuarita-Nogales Transmission Line  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TEP Sahuarita-Nogales Transmission Line Final EIS TEP Sahuarita-Nogales Transmission Line Final EIS 2-4 Figure 2.1-1. Close-up of Alternative Study Corridors Near Sahuarita and Green Valley. Chapter 2- Proposed Action and Alternatives 2-5 Figure 2.1-2. Close-up of Alternative Study Corridors Near Amado. TEP Sahuarita-Nogales Transmission Line Final EIS 2-6 Figure 2.1-3. Close-up of Alternative Study Corridors Near Nogales. TEP Sahuarita-Nogales Transmission Line Final EIS 2-8 Figure 2.1-4. Western Corridor on the Coronado National Forest. Chapter 2-Proposed Action and Alternatives 2-13 Figure 2.1-5. Central Corridor on the Coronado National Forest. Chapter 2-Proposed Action and Alternatives 2-15 Figure 2.1-6. Crossover Corridor on the Coronado National Forest. TEP Sahuarita-Nogales Transmission Line Final EIS

130

Feedforward neural network and adaptive network-based fuzzy inference system in study of power lines  

Science Conference Proceedings (OSTI)

Over the past several decades, concerns have been raised over the possibility that the exposure to extremely low frequency electromagnetic fields from power lines may have harmful effects on human and living organisms. This paper presents novel approach ... Keywords: Adaptive network-based fuzzy inference systems, Electromagnetic fields, Feedforward neural network, Power lines

Jasna Radulovi?; Vesna Rankovi?

2010-01-01T23:59:59.000Z

131

Prediction of magnetic field near power lines by normalized radial basis function network  

Science Conference Proceedings (OSTI)

Over the past several decades, concerns have been raised over the possibility that the exposure to extremely low frequency electromagnetic fields from power lines may have harmful effects on human and living organisms. This work involved the computation ... Keywords: Gradient descent algorithm, Magnetic fields, NRBF network, Power lines, Prediction, Training set

Vesna Rankovi?; Jasna Radulovi?

2011-11-01T23:59:59.000Z

132

Maximal network reliability with optimal transmission line assignment for stochastic electric power networks via genetic algorithms  

Science Conference Proceedings (OSTI)

This study proposes a genetic algorithm based method integrating the minimal paths and the recursive sum of disjoint products to find maximal network reliability with optimal transmission line assignment for a stochastic electric power network. In our ... Keywords: Genetic algorithm, Maximal network reliability, Recursive sum of disjoint products, Stochastic electric power network, Transmission line assignment

Yi-Kuei Lin; Cheng-Ta Yeh

2011-03-01T23:59:59.000Z

133

Guide for Operating Lines at High Temperatures: 2013 Update  

Science Conference Proceedings (OSTI)

Faced with difficulties in acquiring rights-of-way and reduced capital budgets for new transmission lines, many electric energy companies are seeking ways to extract more capacity from existing systems. One option for increasing power flow is to operate overhead transmission lines at higher temperatures than originally designed, an inexpensive option that can be accomplished quickly. It is, however, important that utilities understand the short- and long-term effects of high operating temperatures ...

2013-12-09T23:59:59.000Z

134

Guide for the Application of Transmission Line Surge Arrestors  

Science Conference Proceedings (OSTI)

Lightning flashovers are the most frequent cause of transmission line outages, resulting in a direct cost to utilities of more than $1 billion per year in damaged or destroyed equipment. There are also substantial indirect costs involved due to the reduction in power quality caused by frequent lightning outages. The lightning performance of transmission lines is usually improved by installing overhead ground or shield wires or by increasing the tower footing resistance; however, in some cases, these meas...

2009-12-21T23:59:59.000Z

135

Pipelines to Power Lines: Gas Transportation for Electricity Generation  

Science Conference Proceedings (OSTI)

Gas-fired power generation represents a major growth market for the natural gas industry; but the large, high pressure, highly variable loads required for individual power generators can be difficult to serve. This report, cosponsored by the Gas Research Institute and EPRI, is a design stage assessment of the engineering and costs of the pipelines needed to handle these types of loads.

1995-03-10T23:59:59.000Z

136

Optimal Design of Overhead Distribution Systems  

Science Conference Proceedings (OSTI)

It is not uncommon for overhead distribution conductors to make contact with trees. These incidental contacts can be either intermittent or relatively persistent, are typically not detectable by overcurrent protection systems, and typically do not result in interruptions on distributions circuits. This project focuses on assessing voltage gradients and fault currents created when trees come into contact with distribution conductors, allowing current to flow through the tree from point of contact to earth...

2007-12-19T23:59:59.000Z

137

AC-to-DC Power Transmission Line Conversion  

Science Conference Proceedings (OSTI)

System planners have grown more interest in the prospect of converting ac transmission lines to dc as transfer constraints become more severe and they increasingly recognize dc as a means to improve ac system performance. Two factors have influenced the economic case for conversion. The first is development of a new (tripole) dc configuration that allows dc to make full use of all three ac phase positions without the need for earth return. The second is the realization that converting an ac line to dc ma...

2010-11-10T23:59:59.000Z

138

Dynamic and short-circuit power of CMOS gates driving lossless transmission lines  

E-Print Network (OSTI)

Abstract—The dynamic and short-circuit power consumption of a complementary metal–oxide–semidconductor (CMOS) gate driving an inductance–capacitance (LC) transmission line as a limiting case of an RLC transmission line is investigated in this paper. Closed-form solutions for the output voltage and shortcircuit power of a CMOS gate driving an LC transmission line are presented. A closed form solution for the short-circuit power is also presented. These solutions agree with circuit simulations within 11 % error for a wide range of transistor widths and line impedances for a 0.25-"m CMOS technology. The ratio of the short circuit to dynamic power is shown to be less than 7 % for CMOS gates driving LC transmission lines where the line is matched or underdriven. The total power consumption is expected to decrease as inductance effects becomes more significant as compared to a resistance–capacitance (RC)-dominated interconnect line. Index Terms—CMOS, dynamic, interconnect, LC, power dissipation, RC, RLC, short-circuit, transmission lines.

Yehea I. Ismail; Eby G. Friedman; Senior Member; Jose Luis Neves

1999-01-01T23:59:59.000Z

139

An Exact Algorithm for Power Grid Interdiction Problem with Line ...  

E-Print Network (OSTI)

Abstract—Power grid vulnerability analysis is often performed through solving ..... RAM. 3.25G. 32G. CPLEX. 12.2. 11.0.1. Global Opt. Tolerance e. 1 × 10?4. NA.

140

Evaluation of line focus solar central power systems. Volume I. Executive summary  

DOE Green Energy (OSTI)

An evaluation was completed to ascertain the applicability of line focus technologies to electrical power applications and to compare their performance and cost potential with point focus central receiver power systems. It was concluded that although the high temperature line focus (SRI) and fixed mirror line focus (GA) concepts duplicate the heat source characteristics and power conversion technology of the central receiver concepts these configurations do not offer a sufficient improvement in cost to warrant full scale development. The systems are, however, less complex than their point focus counterpart and should the central receiver system development falter they provide reasonable technology alternatives. This volume is an executive summary. (WHK)

Not Available

1980-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Demonstration of Advanced Conductors for Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This report describes a collaborative research project to evaluate the operational performance of advanced High-Temperature, Low-Sag (HTLS) conductors through approximately three years of field experience. The results of the project provide general information on installing, sagging, and clipping HTLS conductors and about their long-term behavior at different electrical current levels and in various geographical locales. Key information is provided on design, installation, operation, and maintenance of s...

2008-07-29T23:59:59.000Z

142

EA-0962: Construction and Routine Operation of a 12-kilovolt Overhead  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

62: Construction and Routine Operation of a 12-kilovolt 62: Construction and Routine Operation of a 12-kilovolt Overhead Powerline and Formal Authorization for a 10-inch and 8-inch Fresh Water Pipeline Right-of-Way at Naval Petroleum Reserve No. 1, Kern County, California EA-0962: Construction and Routine Operation of a 12-kilovolt Overhead Powerline and Formal Authorization for a 10-inch and 8-inch Fresh Water Pipeline Right-of-Way at Naval Petroleum Reserve No. 1, Kern County, California SUMMARY This EA evaluates the environmental impacts of the proposal to install an overhead powerline extension from the U.S. Department of Energy's Naval Petroleum Reserve No. 1 (NPR-1) power source to the WKWD Station A, which will significantly reduce NPR-1's overall utility costs. NPR-1 is known as Elk Hills oil field and is located in the southern San Joaquin Valley,

143

A Fire Risk Breakdown System for Electrical Power Lines in the North of Brazil  

Science Conference Proceedings (OSTI)

Anthropogenic or spontaneous fires (hotspots) are the main causes of unexpected breakdowns of electrical power lines in the North of Brazil. This research has tested, adapted and implemented a pre-operational system aiming to prevent electrical ...

Gutemberg Borges França; Antonio Nascimento de Oliveira; Célia Maria Paiva; Leonardo de Faria Peres; Michael Bezerra da Silva; Luciana Maria Temponi de Oliveira

144

Power Line Communication as a Transmission Medium for OpenADR...  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Line Communication as a Transmission Medium for OpenADR Signals Speaker(s): Javier Matanza Domingo Date: December 14, 2011 - 1:30pm Location: 90-3075 Seminar HostPoint of...

145

Adaptive neurofuzzy inference system-based pollution severity prediction of polymeric insulators in power transmission lines  

Science Conference Proceedings (OSTI)

This paper presents the prediction of pollution severity of the polymeric insulators used in power transmission lines using adaptive neurofuzzy inference system (ANFIS) model. In this work, laboratory-based pollution performance tests were carried out ...

C. Muniraj; S. Chandraseka

2011-01-01T23:59:59.000Z

146

Power upgrading of transmission line by combining AC-DC transmission  

Science Conference Proceedings (OSTI)

Long extra high voltage (EHV) ac lines cannot be loaded to their thermal limits in order to keep sufficient margin against transient instability. With the scheme proposed in this project, it is possible to load these lines very close to their thermal ... Keywords: extra high voltage (EHV)transmission, flexible ac transmission system (FACTS), power system computer-aided design(PSCAD), simultaneous ac-dc power transmission

Jarupula Somlal

2010-07-01T23:59:59.000Z

147

Electric Power Lines : Questions and Answers on Research into Health Effects.  

Science Conference Proceedings (OSTI)

Most people know that electric power lines, like the wiring in our homes, can cause serious electric shocks if we`re not careful. Many people also want to know whether the electric and magnetic fields (EMF) produced by power lines and other electrical devices cause health effects. The purpose of this pamphlet is to answer some common questions that the Bonneville Power Administration (BPA) receives about the possible effects of power lines on health. (BPA is the Pacific Northwest`s Federal electric power marketing agency.) First, some basic electrical terms are defined, and electric and magnetic fields are described. Next, answers are given to several questions about recent scientific studies. We then describe how BPA is addressing public concerns raised by these studies. Some important information about electrical safety follows. The last section tells you how to obtain more detailed information about the health and safety issues summarized in this pamphlet.

United States. Bonneville Power Administration.

1993-11-01T23:59:59.000Z

148

A Negative-Overhead, Self-Timed Pipeline  

E-Print Network (OSTI)

This' paper presents' a novel variation of wave pipelining that we call "surfing." In previous wave pipelined designs, timing uncertainty grows' monotonically as events' propagate through gates or other logic elements'. We bound this dispersion by propagating a timing pulse along with the data values. Our logic elements have delays' that are smaller in the presence of the pulse than in its' absence. This' produces a "surfing " effect: events' are bound in close proximity to the timing pulse. We demonstrate this approach with the design of a 4x12 multiplier. Spice simulations from the extracted layout indicate that this design is robust in the presence of fabrication parameter variation and power supply noise. Because timing is' maintained by accelerating the logic, our designs achieve lower latency than their purely combinational equivalents'. Thus, the control overhead for these designs is' indeed negative.

Brian D. Winters; Mark R. Greenstreet

2002-01-01T23:59:59.000Z

149

Overhead energy considerations for efficient routing in wireless sensor networks q  

E-Print Network (OSTI)

Energy is the most critical resource in the life of a wireless sensor node. Therefore, its usage must be optimized to maximize the network life. It is known that for higher path loss exponent values, utilizing shorter communication links reduces the transmitter energy, whenever the radio equipment has power adjustment capability. Although the transmitter energy is one of the major factors of total energy dissipation, neglecting the overhead energy could result in suboptimal energy usage. Routing algorithms should also be concerned about the overhead energy which is wasted at each hop of data transfer. In this paper, we investigate the use of multi-hop communication links and compare the amount of energy gain upon alternative routes using analytical techniques. We show that employing multi-hop links does not always result in energy gain, and try to quantify situations when it is advantageous. The analytical results are used in routing decisions and their effect in energy efficiency is validated using simulations. Moreover, we also quantify the gain achieved in terms of lifetime by considering overhead energy on power adjustable sensors for different environmental conditions. We show that the network lifetime can dramatically decrease, if the overhead energy component is neglected during routing decisions.

E. Ilker Oyman; Cem Ersoy

2004-01-01T23:59:59.000Z

150

Functional design criteria exploratory shaft power line and substation Project B-417  

SciTech Connect

This project will provide a 13.8-KV, 3-phase electrical power line from substation B-251 to the ES site. The power line will be sized to carry the 6000 KVA power required to meet the construction and operations power requirements of the facility. The line will originate at an existing circuit breaker at the 13.8 KV switch gear at substation B-251 and will terminate at fused cutouts at the ES site. Wood poles will be used for the aerial support of the {approximately}4.7 mile transmission line. Joint use of the line by project B-316 is being considered. The substation will provide transformation from 13.8 KV to 2.4 KV, transformer mounting, grounding grid for the entire substation, the substation fence, and connection between the primary side of the transformer and the 13.8 KV electrical line (last pole) provided by Part 1. Switching stations, protective devices, and metering, which are normally part of a substation, will be provided by the ES Project, B-314. 10 refs.

Schroeder, B.K.

1981-12-01T23:59:59.000Z

151

Conceptual Design Report, Exploratory Shaft Power Line and Substation, Project B-417  

SciTech Connect

This project will provide a 13.8-KV, 3-phase electrical power line from substation B-251 to the ES site. The power line will be sized to carry the 6000 KVA power required to meet the construction and operations power requirements of the facility. The line will originate at an existing circuit breaker at the 13.8 KV switch gear at substation B-251 and will terminate at fused cutouts at the ES site. Wood poles will be used for the aerial support of the {approximately}4.7 mi. transmission line. Joint use of the line by project B-316 is being considered. This part will provide transformation from 13.8 KV to 2.4 KV, transformer mounting, grounding grid for the entire substation, the substation fence, and connection between the primary side of the transformer and the 13.8 KV electrical line (last pole) provided by Part I. Switching stations, protective devices, and metering, which are normally part of a substation, will be provided by the ES project, B-314. This report includes drawings, cost estimates and schedules.

Schroeder, B.K. (Kaiser Engineers Hanford Co., Richland, WA (USA))

1982-03-01T23:59:59.000Z

152

Active high-power RF pulse compression using optically switched resonant delay lines  

DOE Green Energy (OSTI)

The authors present the design and a proof of principle experimental results of an optically controlled high power rf pulse compression system. The design should, in principle, handle few hundreds of Megawatts of power at X-band. The system is based on the switched resonant delay line theory. It employs resonant delay lines as a means of storing rf energy. The coupling to the lines is optimized for maximum energy storage during the charging phase. To discharge the lines, a high power microwave switch increases the coupling to the lines just before the start of the output pulse. The high power microwave switch, required for this system, is realized using optical excitation of an electron-hole plasma layer on the surface of a pure silicon wafer. The switch is designed to operate in the TE{sub 01} mode in a circular waveguide to avoid the edge effects present at the interface between the silicon wafer and the supporting waveguide; thus, enhancing its power handling capability.

Tantawi, S.G.; Ruth, R.D.; Vlieks, A.E. [Stanford Univ., CA (US). Stanford Linear Accelerator Center; Zolotorev, M. [Lawrence Berkeley National Lab., CA (US)

1996-11-01T23:59:59.000Z

153

Wallula-McNary Transmission Line Project and Wallula Power Project EIS (DOE/EIS-0030)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

RECORD OF DECISION for the Wallula-McNary Transmission Line Project and Wallula Power Project THE DECISION The Bonneville Power Administration (BPA) has decided to implement its portion of the proposed action identified in the Wallula Power Project and Wallula-McNary Transmission Line Project Final Environmental Impact Statement (DOE/EIS-0330, August 2002). The proposed action includes construction of the Wallula Power Project (Wallula Project) that has been proposed by Wallula Generation, LLC (Wallula LLC). The proposed Wallula Project is a 1,300- megawatt (MW) natural-gas-fired, combined-cycle turbine power plant that Wallula LLC is planning to construct on a site near the Columbia River in Walla Walla County, Washington, approximately eight miles south of the City of Pasco. BPA's portion of the proposed action

154

Microsoft Word - Broadband Over Power Lines_FINAL.06.01.10.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Broadband over Powerlines Can Accelerate the Transmission Smart Grid Broadband over Powerlines Can Accelerate the Transmission Smart Grid May 25, 2010 DOE/NETL-2010/1418 Broadband Over Power Lines Could Accelerate the Transmission Smart Grid Broadband Over Power Lines Could Accelerate the Transmission Smart Grid 1 Prepared by: Booz Allen Hamilton (BAH) Bruce Renz Renz Consulting, LLC DOE Contract number: DE-FE000400 Broadband Over Power Lines Could Accelerate the Transmission Smart Grid 2 Acknowledgements This report was prepared by Booz Allen Hamilton, Inc. (BAH) for the United States Department of Energy's National Energy Technology Laboratory. This work was completed under DOE NETL Contract Number DE-FE000400, and performed under BAH Task 430.04. The authors wish to acknowledge the excellent guidance, contributions, and cooperation of the

155

System for transmitting low frequency analog signals over AC power lines  

DOE Patents (OSTI)

A system for transmitting low frequency analog signals over AC power lines using FM modulation. A low frequency analog signal to be transmitted is first applied to a voltage-to-frequency converter where it is converted to a signal whose frequency varies in proportion to the analog signal amplitude. This signal is then used to modulate the carrier frequency of an FM transmitter coupled to an AC power line. The modulation signal frequency range in selected to be within the response band of the FM transmitter. The FM modulated carrier signal is received by an FM receiver coupled to the AC power line, demodulated and the demodulated signal frequency is converted by a frequency-to-voltage converter back to the form of the original low frequency analog input signal.

Baker, Steven P. (Powell, TN); Durall, Robert L. (Lenoir City, TN); Haynes, Howard D. (Knoxville, TN)

1989-01-01T23:59:59.000Z

156

Calculation methods and detection techniques for electric and magnetic fields from power lines with measurement verification  

E-Print Network (OSTI)

An accurate determination and characterization of electric and magnetic fields produced by power lines is a complex task. Different models must be used for far fields and for near fields. This study is centered on computation and measurement aspects of extremely low frequency magnetic fields in the direct proximity of the conductors of power lines, situated well above the ground level. Conventional approximation of a sagged wire as a straight horizontal conductor of infinite length has been substituted with a periodical catenary model of the conductors A series of measurements performed with all electric utility bucket truck provide unique magnetic field data very close to the conductors. A conceptual design of a power line proximity detector is proposed as a result of these studies.

Mamishev, Alexander V

1994-01-01T23:59:59.000Z

157

A system for tranmitting low frequency analog signals over ac power lines  

DOE Patents (OSTI)

A system for transmitting low frequency analog signals over ac power lines using FM modulation. A low frequency analog signal to be transmitted is first applied to a voltage-to-frequency converter where it is converted to a signal whose frequency varies in proportion to the analog signal amplitude. This signal is then used to modulate the carrier frequency of an FM transmitter coupled to an ac power line. The modulation signal frequency range is selected to be within the response band of the FM transmitter. The FM modulated carrier signal is received by an FM receiver coupled to the ac power line, demodulated and the demodulated signal frequency is converted by a frequency-to-voltage converter back to the form of the original low frequency analog input signal. 4 figs.

Baker, S.P.; Durall, R.L.; Haynes, H.D.

1987-07-30T23:59:59.000Z

158

Power Line Communication as a Transmission Medium for OpenADR Signals  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Line Communication as a Transmission Medium for OpenADR Signals Power Line Communication as a Transmission Medium for OpenADR Signals Speaker(s): Javier Matanza Domingo Date: December 14, 2011 - 1:30pm Location: 90-3075 Seminar Host/Point of Contact: Maya Minamihara Power Line Communication (PLC) is currently considered an emerging technology and is attracting the attention of the scientific community due to the promise of new ways to transmit information. Since this transmission path reaches wherever electricity is present, one of the main motivations is its use in all kinds of energy-related applications. Some examples are: remote-metering, remote-control and demand management. However, not everything about PLC is advantageous, due to the fact that it uses a physical media, which was not designed for transmit information, and it

159

Study of power transfer capability of dc systems incorporating ac loads and a parallel ac line  

Science Conference Proceedings (OSTI)

Concepts of maximum power transfer of dc systems and associated ac voltage variations, particularly at inverter stations having low short-circuit ratios, have been extended to include various ac load models and an ac line in parallel with the dc line. The operating capabilities are shown to vary from those predicted from either a Thevenin ac source model or the corresponding short-circuit ratio. The study used an ac/dc load flow program.

Reeve, J.; Uzunovic, E. [Univ. of Waterloo, Ontario (Canada)

1997-01-01T23:59:59.000Z

160

Overhead elimination mechanisms in real-time systems  

Science Conference Proceedings (OSTI)

The OEM (Overhead Elimination Mechanism), a scheduler for finding minimal overheads with reduced context switches in real-time systems, was developed using procedural methods. Software produced by these methods has often proven to be inflexible and difficult ... Keywords: Real-time scheduling, context switches, object-oriented, procedural, rate monotonic algorithm

Ilhyun Lee; Haesun K. Lee; Narayan Debnath

2006-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Integrated System Of White Led Visible-Light Communication And Power-Line Communication  

E-Print Network (OSTI)

White LEDs offer advantageous properties such as high brightness, reliability, lower power consumption and long lifetime. The biggest potential application for white LEDs will be general illumination and lighting. Indoor wireless optical communication systems employing white LED lighting have been proposed. This system will enable high QoS by the high power from this lighting equipment. But, it is difficult for existing offices communication using existing power-line is proposed. This system is emitted as visible-light from LED lighting according to the transmitted signal waveform without demodulating the signal from the power-line. This system is expected to be applicable from the existing illuminant easily like exchanging electric bulbs. This integrated system will surely have a big impact as a new signal transmission system and its economical effect will be great. The basic performance of this system is analyzed. The actual system is built and its feasibility is shown through experiments.

Toshihiko Komine; Masao Nakagawa

2002-01-01T23:59:59.000Z

162

Towards automatic power line detection for a UAV surveillance system using pulse coupled neural filter and an improved Hough transform  

Science Conference Proceedings (OSTI)

Spatial information captured from optical remote sensors on board unmanned aerial vehicles (UAVs) has great potential in automatic surveillance of electrical infrastructure. For an automatic vision-based power line inspection system, detecting power ... Keywords: Hough transform, Knowledge-based system, Power line inspection system, Pulse coupled neural filter, Unmanned aerial vehicles (UAVs)

Zhengrong Li; Yuee Liu; Rodney Walker; Ross Hayward; Jinglan Zhang

2010-08-01T23:59:59.000Z

163

Theoretical and experimental investigation of axial power extraction from a magnetically insulated transmission line oscillator  

SciTech Connect

The utility of the magnetically insulated transmission line oscillator (MILO) as a high power microwave source depends on how efficiently power can be extracted from it. We have designed a slow-wave stepped transformer for the purpose of axially extracting microwave power from a 3.6 GHz coaxial MILO. The slow-wave transformer design was optimized using particle-in-cell simulation, and tested in experiments performed on the HPM Simulation Division's GEMINI and GYPSY water Blumlein pulse power sources. In this paper we summarize the slow-wave stepped transformer design, and describe MILO axial power extraction experiments which yielded up to 300 MW of radiated power. 10 refs., 4 figs., 2 tabs.

Lemke, R.W.; DeMuth, G.E.; Biggs, A.W. (Sandia National Labs., Albuquerque, NM (USA); Air Force Weapons Lab., Kirtland AFB, NM (USA); Alabama Univ., Huntsville, AL (USA). Dept. of Electrical and Computer Engineering)

1989-01-01T23:59:59.000Z

164

Wallula Power Project and Wallula - McNary Transmission Line Project Final Environmental Impact Statement  

Science Conference Proceedings (OSTI)

Wallula Generation, LLC proposes to construct a 1,300-megawatt (MW) natural gas-fired combined-cycle combustion gas turbine facility (the Wallula Power Project). The project would be located in the northwestern portion of Walla Walla County, Washington, approximately 8 miles south of the City of Pasco, 2 miles north of the unincorporated community of Wallula, and 7 miles southeast of the unincorporated community of Burbank. The purpose of the proposed power project is to provide energy to meet the needs of the Northwest and other interconnected electric transmission areas where electrical energy is needed. Firm transmission of the power generated by the Wallula Power Project would require construction of a new 500-kilovolt (kV) transmission line and construction of a new switchyard near Smiths Harbor. Approximately 5.1 miles of new transmission line from the proposed generation plant to the new switchyard would be completed. An additional 28 miles of new transmission line from the Smiths Harbor Switchyard to the McNary Substation would be constructed adjacent to the existing Lower Monumental-McNary transmission line and upgrades completed to the existing McNary Substation if loads are exceeded on the existing line. Wallula Generation, LLC, would construct and operate the generation plant and associated facilities, including the makeup water supply line. Bonneville would design, construct, and operate the two 500 kV transmission line segments and switchyard. To supply natural gas to the plant site, a 5.9-mile pipeline interconnection would be engineered, constructed, owned, and operated by PG&E Gas Transmission-Northwest (GTN). This EIS evaluates the environmental impacts of the proposed action, which includes the proposed power plant and 33-mile transmission line. It also evaluates an alternative using taller towers and longer spans between towers along part of the transmission line, and the use of an alternative approach for the transmission line where it would enter the McNary Substation. The No Action Alternative is also addressed.

N /A

2002-08-16T23:59:59.000Z

165

Ratings of Transmission Lines: Applications, Computations, and Thermal Models  

Science Conference Proceedings (OSTI)

The thermal rating of overhead transmission lines can be complex, because there is no way to directly measure the line rating and because high current load events occur only rarely in most parts of the power system. A thermal line rating is a prediction of how the conductor will behave thermally, mechanically, and electrically in the event of a high electrical current. It is possible to calculate ratings incorrectly and not discover that this is true until a most inopportune timeduring a system emergency...

2011-12-16T23:59:59.000Z

166

EPRI Comments on Swedish Study of PCB Accumulation Beneath AC Power Lines  

Science Conference Proceedings (OSTI)

A paper entitled, "Increased deposition of polychlorinated biphenyls (PCBs) under an AC high-voltage power line," was recently published in Atmospheric Environment (2009;43:6168-6174). These EPRI Comments evaluate the strengths and limitations of the study and provide perspective in the context of results from previous studies.

2010-02-05T23:59:59.000Z

167

Evaluation of line focus solar central power systems. Volume II. Systems evaluation  

DOE Green Energy (OSTI)

An evaluation was completed to ascertain the applicability of line focus technologies to electrical power applications and to compare their performance and cost potential with point focus central receiver power systems. It was concluded that although the high temperature line focus (SRI) and fixed mirror line focus (GA) concepts duplicate the heat source characteristics and power conversion technology of the central receiver concepts these configurations do not offer a sufficient improvement in cost to warrant full scale development. The systems are, however, less complex than their point focus counterpart and should the central receiver system development falter they provide reasonable technology alternatives. The parabolic trough concept (BDM) was found to provide a low temperature technology alternative to the central receiver concept with promising performance and cost potential. Its continued development is recommended, with special emphasis on lower temperature (< 700/sup 0/F) applications. Finally, a variety of new promising line focus power system configurations were identified for a range of utility and industrial applications and recommendations were made on their implementation. This volume contains the detailed report. (WHK)

Not Available

1980-03-15T23:59:59.000Z

168

A Power Transmission Line Fault Distance Estimation VLSI Chip: Design and Defect Tolerance  

Science Conference Proceedings (OSTI)

This paper presents a system-on-a-chip for fault detection and fault-distance-estimation for power transmission lines in the smart grid. Toward this goal we have designed and fabricated three chips: PGS4, PGS5 and PGS6, each successively more advanced ... Keywords: Smart grid, fault distance, arcing fault, system on a chip, defect tolerance, Radojevic algorithm.

E. MacLean; V. K. Jain

2011-10-01T23:59:59.000Z

169

Line asymmetry of solar p-modes: Reversal of asymmetry in intensity power spectra  

E-Print Network (OSTI)

The sense of line asymmetry of solar p-modes in the intensity power spectra is observed to be opposite of that seen in the velocity power spectra. Theoretical calculations provide a good understanding and fit to the observed velocity power spectra whereas the reverse sense of asymmetry in the intensity power spectrum has been poorly understood. We show that when turbulent eddies arrive at the top of the convection zone they give rise to an observable intensity fluctuation which is correlated with the oscillation they generate, thereby affecting the shape of the line in the p-mode power spectra and reversing the sense of asymmetry (this point was recognized by Nigam et al. and Roxburgh & Vorontsov). The addition of the correlated noise displaces the frequencies of peaks in the power spectrum. Depending on the amplitude of the noise source the shift in the position of the peak can be substantially larger than the frequency shift in the velocity power spectra. In neither case are the peak frequencies precisely equal to the eigenfrequencies of p-modes. We suggest two observations which can provide a test of the model discussed here.

Pawan Kumar; Sarbani Basu

1998-08-13T23:59:59.000Z

170

A Study On High Voltage AC Power Transmission Line Electric And Magnetic Field Coupling With Nearby Metallic Pipelines.  

E-Print Network (OSTI)

??In the recent years, there has been a trend to run metallic pipelines carrying petroleum products and high voltage AC power lines parallel to each… (more)

Gupta, Abhishek

2006-01-01T23:59:59.000Z

171

Solar thermal electric power systems with line-focus collectors. Final report  

DOE Green Energy (OSTI)

Electric power generation by conventional Rankine cycle heat engines with heat supplied by line-focus solar collectors was investigated. The objectives of the study were: (1) determine which of four types of line-focus solar collectors coupled with turbine-generators of conventional design has the potential to produce low-cost electric power with thermal energy in 100 to 300/sup 0/C range; (2) develop performance and cost relationships for organic Rankine cycle engines for power generation capacities from 3 MW/sub e/ to 300 MW/sub e/; (3) develop conceptual storage units for organic fluid systems. Evaluation procedures and study results and conclusion are presented and discussed in detail. (WHK)

Duff, W.S.; Karaki, S.; Shaner, W.W.; Wilbur, P.J.; Somers, E.V.; Grimble, R.E.; Wilson, H.S.; Watt, A.D.

1978-12-01T23:59:59.000Z

172

Photovoltaic power system tests on an 8-kilowatt single-phase line-commutated inverter  

SciTech Connect

A commercially available single-phase line-commutated inverter has been tested in a photovoltaic power system. Efficiency and power factor were measured as functions of solar array voltage and current. Also, the effects of input shunt capacitance and series inductance were determined. Tests were conducted from 15 to 75 percent of the 8 kW rated inverter input power. Measured efficiencies ranged from 76 percent (at 160 V and 8.0 A) to 88 percent (at 200 V and 18.7 A) at about 50 percent of rated inverter input power. Power factor ranged from 36 percent (at 160 V and 8.0 A) to 72 percent (at 200 V and 28.6 A).

Stover, J.B.

1978-02-01T23:59:59.000Z

173

Low-power clock synchronization using electromagnetic energy radiating from AC power lines  

Science Conference Proceedings (OSTI)

Clock synchronization is highly desirable in many sensor networking applications. It enables event ordering, coordinated actuation, energy-efficient communication and duty cycling. This paper presents a novel low-power hardware module for achieving global ... Keywords: hardware clock synchronization, sensor networks, synchronization, wireless sensor networks

Anthony Rowe; Vikram Gupta; Ragunathan (Raj) Rajkumar

2009-11-01T23:59:59.000Z

174

Transmission Line Protection Support Tools: Fault Location Algorithms and the Potential of Using Intelligent Electronic Device Data for Protection Applications  

Science Conference Proceedings (OSTI)

Overhead transmission lines experience short-circuit faults due to lightning, stormy weather conditions, animal or tree contact, and insulation failure in power system equipment. To ensure continuity of electric service, utilities try to quickly determine the location of the fault, perform maintenance or repair, and return the line to service. Due to advances in modern technology, locating faults in a networked transmission system is now possible with substantial accuracy. Voltage and current ...

2013-12-23T23:59:59.000Z

175

Investigation of broadband over power line channel capacity of shipboard power system cables for ship communications networks  

E-Print Network (OSTI)

Broadband over Power Line (BPL) technology has garnered significant attention lately due to recent advancements in solid state technologies and channel coding schemes. The successful application of BPL technology for in-home automation and networking has led to suggestions of applying BPL in other systems including ships. The application of BPL technology using the Shipboard Power System (SPS) as a potential communications network for ship automation systems has been proposed, to achieve recent U.S. Navy ship management concepts geared toward reducing ship manning while improving operational efficiency. This thesis presents an analytical model developed to examine the channel response characteristics and estimated throughput capacity of SPS cables. The work used a multiconductor transmission line theory based approach to model the channel response of SPS distribution lines and estimated the channel throughput capacity using a “water-filling” communication technique. This work found that BPL using the SPS holds a strong potential for use as a communications network for ship communication systems.

Akinnikawe, Ayorinde

2008-12-01T23:59:59.000Z

176

Study on a method of design for rural power distribution lines based on 3D GIS technology  

Science Conference Proceedings (OSTI)

The aim of this paper is to study a three-dimensional GIS method of design for power distribution lines in rural areas, by applying SuperMap to the GIS, and to integrate the visual computer programming environment in the secondary development. A three-dimensional ... Keywords: Digital elevation model, GIS, Power distribution lines, Section map

Yong Yang; Yong-Fu Liu; Ying-Li Cao

2010-06-01T23:59:59.000Z

177

Wallula Power Project and Wallula - McNary Transmission Line Project, Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and and Wallula - McNary Transmission Line Project Final Environmental Impact Statement DOE/EIS-0330 Lead Agencies Bonneville Power Administration Washington State Energy Facility Site Evaluation Council Cooperating Agencies Bureau of Land Management U.S. Fish and Wildlife Service August 2002 EFSEC Washington State Energy Facility Site Evaluation Council August 2002 Dear Reader: Enclosed for your reference is the abbreviated form Final Environmental Impact Statement (FEIS) for the proposed Wallula Power Project and Wallula-McNary Transmission Line Project. This document is designed to supplement or correct information provided in the Draft Environmental Impact Statement (DEIS). The proponent, Wallula Generation, LLC, has requested to build a 1,300-megawatt, gas-fired

178

A simple packet retransmission strategy for throughput and delay enhancement on power line communication channels  

SciTech Connect

A new, simple, and effective communication protocol is developed and evaluated for use on power line distribution networks. The protocol involves retransmission of unacknowledged packets, which are sent in either single or multiple (N) copies in accordance with estimates of communication link quality. Multiple packet copies can be code combined at the receiver, using majority voting on each bit position, to reduce packet error rates. Adaptive link quality estimates are based on the receipt or absence of positive acknowledgements. Information throughput efficiency is calculated and N optimized in terms of system variables. Performance benefits of code combining are clearly demonstrated. The algorithm was implemented and tested using a five-station intrabuilding power line communications network operating at 1.2, 2.4, 4.8 and 9.6 kbit/s data rate. Substantial throughput and delay improvement occurred on poor quality links, without degrading performance on good links.

Onunga, J.O. (Kenya Posts and Telecommunications Corp., Nairobi (Kenya)); Donaldson, R.W. (Univ. of British Columbia, Vancouver (Canada). Dept. of Electrical Engineering)

1993-07-01T23:59:59.000Z

179

Program in geothermal well technology directed toward achieving DOE/DGE power-on-line goals  

DOE Green Energy (OSTI)

This document presents the material used in an oral presentation to the DOE/Division of Geothermal Energy, which was designed to illustrate the importance of well technology development in reducing geothermal well costs, and to achieve geothermal power-on-line goals. Examination of recent studies of the economics of geothermal energy leads to the conclusion that the overall sensitivity of geothermal power-on-line to well cost is in the range of one to two. Current data suggest that a vigorous R and D program in rotary drilling technology can reduce geothermal drilling costs by about 20%, but a reduction of 40 to 50% is needed to achieve DOE/DGE goals. Research in advanced drilling systems is needed to satisfy this more stringent requirement. Some critical technological deficiencies that occur when current rotary drilling techniques are used for geothermal drilling are discussed. A broadly based development program directed at correcting these deficiencies is defined.

Polito, J.; Varnado, S.G.

1978-10-01T23:59:59.000Z

180

Termination for a superconducting power transmission line including a horizontal cryogenic bushing  

DOE Patents (OSTI)

A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminates the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

Minati, Kurt F. (Northport, NY); Morgan, Gerry H. (Patchogue, NY); McNerney, Andrew J. (Shoreham, NY); Schauer, Felix (Upton, NY)

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Horizontal cryogenic bushing for the termination of a superconducting power-transmission line  

DOE Patents (OSTI)

A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminated the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

Minati, K.F.; Morgan, G.H.; McNerney, A.J.; Schauer, F.

1982-07-29T23:59:59.000Z

182

Evaluation of Power Line Carrier Technologies for Plug-In Electric Vehicle Communications  

Science Conference Proceedings (OSTI)

In support of the Society of Automotive Engineers (SAE) efforts to develop standard means of communication with plug-in electric vehicles (PEVs), EPRI conducted an evaluation of several power line carrier (PLC) technologies. Evaluation of the technologies was based on a test plan developed in the SAE Hybrid Task Force. Direct PEV communication enables signaling of grid conditions to the PEV allowing for remote, intelligent management of vehicle charging. The interface can also support the use of ...

2012-12-12T23:59:59.000Z

183

Determination of High-Frequency Current Distribution Using EMTP-Based Transmission Line Models with Resulting Radiated Electromagnetic Fields  

SciTech Connect

Application of BPL technologies to existing overhead high-voltage power lines would benefit greatly from improved simulation tools capable of predicting performance - such as the electromagnetic fields radiated from such lines. Existing EMTP-based frequency-dependent line models are attractive since their parameters are derived from physical design dimensions which are easily obtained. However, to calculate the radiated electromagnetic fields, detailed current distributions need to be determined. This paper presents a method of using EMTP line models to determine the current distribution on the lines, as well as a technique for using these current distributions to determine the radiated electromagnetic fields.

Mork, B; Nelson, R; Kirkendall, B; Stenvig, N

2009-11-30T23:59:59.000Z

184

Integrated Technology for Distribution Systems Applications: Survey and Testing of Voltage Detecting/Indicating Devices for AC Power Lines  

Science Conference Proceedings (OSTI)

This report summarizes product reviews and testing commercially available voltage-sensing devices used to detect energized electric distribution lines, with particular focus on minimum detection and indication performance. To adequately detect line energization across the entire spectrum of possible voltage levels on a power line (from 40 Vac to full line voltage), multiple devices are currently necessary. The ideal improvement to address current gaps in voltage sensing would be the development of a ...

2013-12-17T23:59:59.000Z

185

On-line reactive power compensation schemes for unbalanced three phase four wire distribution feeders  

Science Conference Proceedings (OSTI)

A new reactive power compensation method is developed to reduce the negative and zero sequence components of load currents and to improve the load bus power factor of unbalanced three-phase four-wire distribution feeders. Negative and zero sequences currents may cause additional losses and damages to power systems. Load compensation at the load bus is an effective method to eliminate those undesired sequence currents. The compensation technique uses a Y-connected and a [Delta]-connected static reactive power compensators to give a different amount of reactive power compensation to each phase. The compensation formulas are very suitable for on-line control by measuring phase voltages and currents in the real time. The compensation effect can also be achieved even if one leg of the SVCs is out of service. In addition to balancing effect and power factor improvement at the load bus, the SVCs can also be used to support the load bus voltage and to maintain the substation feeder at unity powder factor. Digital simulations are made with the load data measured from an 11.4kV secondary substation feeder.

Sanyi Lee; Chijui Wu (National Taiwan Inst. of Tech., Taipei (Taiwan, Province of China). Dept. of Electrical Engineering)

1993-10-01T23:59:59.000Z

186

Sensor, method and system of monitoring transmission lines  

SciTech Connect

An apparatus, method, and system for measuring the magnetic field produced by phase conductors in multi-phase power lines. The magnetic field measurements are used to determine the current load on the conductors. The magnetic fields are sensed by coils placed sufficiently proximate the lines to measure the voltage induced in the coils by the field without touching the lines. The x and y components of the magnetic fields are used to calculate the conductor sag, and then the sag data, along with the field strength data, can be used to calculate the current load on the line and the phase of the current. The sag calculations of this invention are independent of line voltage and line current measurements. The system applies a computerized fitter routine to measured and sampled voltages on the coils to accurately determine the values of parameters associated with the overhead phase conductors.

Syracuse, Steven J.; Clark, Roy; Halverson, Peter G.; Tesche, Frederick M.; Barlow, Charles V.

2012-10-02T23:59:59.000Z

187

DOE-HDBK-1141-2001; Radiological Assessor Training, Overheads  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

13.1 13.1 Overhead 13.1 DOE-HDBK-1141-2001 Radiological Aspects of Accelerators Objectives: * Identify the general characteristics of accelerators. * Identify the types of particles accelerated. * Identify the two basic types of accelerators. * Identify uses for accelerators. * Define prompt radiation. * Identify prompt radiation sources. OT 13.2 Overhead 13.2 DOE-HDBK-1141-2001 Radiological Aspects of Accelerators (cont.) Objectives: * Define radioactivation. * Explain how contaminated material differs from activated material with regard to radiological concerns. * Identify activation sources. OT 13.3 Overhead 13.3 DOE-HDBK-1141-2001 Radiological Aspects of Accelerators (cont.) Objectives: * Identify engineered and administrative controls at accelerator facilities. * Identify the special

188

Numerical study of electron-leakage power loss in a tri-plate transmission line  

SciTech Connect

Numerical simulations have been conducted using NRL's DIODE2D computer code to model the steady-state behavior of electron flow in a radial diode and in its adjacent tri-plate transmission line (TTL). Particular attention was paid to the magnitude of the electron current flowing from the cathode to the anode surface in the TTL. A quantitative value for this effective power loss is given. The electron current is restricted mainly to the transition region in the TTL into which there is seepage of the B/sub z/ that is imposed in the diode gap. This finding highlights the importance of that region to diode designers.

Barker, R.J.; Goldstein, S.A.

1982-06-23T23:59:59.000Z

189

Evaluation of Power Line Carrier Technologies for Automotive Smart Charging Applications  

Science Conference Proceedings (OSTI)

In support of the Society of Automotive Engineers (SAE) Hybrid J2836J2847J2931 Committee, EPRI has undertaken evaluation of a set of power line carrier (PLC) technologies. This report documents Phase I activity, where vendor hardware evaluation kits were operated and tested in the EPRI lab. This initial activity lays the groundwork for in-depth PLC testing to occur in the near future. The primary focus of this report is to provide an overview of the vendor evaluation hardware and software and to report r...

2010-12-14T23:59:59.000Z

190

On-line Decentralized Charging of Plug-In Electric Vehicles in Power Systems  

E-Print Network (OSTI)

Plug-in electric vehicles (PEV) are gaining increasing popularity in recent years, due to the growing societal awareness of reducing greenhouse gas (GHG) emissions and the dependence on foreign oil or petroleum. Large-scale implementation of PEVs in the power system currently faces many challenges. One particular concern is that the PEV charging can potentially cause significant impact on the existing power distribution system, due to the increase in peak load. As such, this work tries to mitigate the PEV charging impact by proposing a decentralized smart PEV charging algorithm to minimize the distribution system load variance, so that a 'flat' total load profile can be obtained. The charging algorithm is on-line, in that it controls the PEV charging processes in each time slot based entirely on the current power system state. Thus, compared to other forecast based smart charging approaches in the literature, the charging algorithm is robust against various uncertainties in the power system, such as random PE...

Li, Qiao; Negi, Rohit; Franchetti, Franz; Ilic, Marija D

2011-01-01T23:59:59.000Z

191

EPRI Comments on a UK Case-Control Study of Magnetic Fields from High Voltage Power Lines and Childhood Cancer  

Science Conference Proceedings (OSTI)

A paper, entitled "Childhood cancer and magnetic fields from high voltage power lines in England and Wales: a case-control study," was published in the British Journal of Cancer on September 28, 2010. The authors assessed the association between exposure to EMF from power lines at the address of birth and childhood cancer. The current paper provides additional results to a study published earlier from the same data set in 2005. These EPRI comments provide an overview of study findings, conclusions, stren...

2010-12-22T23:59:59.000Z

192

Sidney-North Yuma 230-kV Transmission Line Project, Colorado and Nebraska  

SciTech Connect

This report describes the need for a 230-kV overhead transmission line to supply power from Sidney, Nebraska to eastern Colorado. The alternative scenario compared to construction of the line is No Action. Rejected alternatives include underground lines and different routing paths, with a possible extension to the Sterling area. Both scenarios are evaluated for environmental effects, cost, and consequences for the eastern Colorado region. The proposed route is determined to be the environmentally preferred choice. 120 refs., 6 figs., 13 tabs. (MHB)

1991-06-01T23:59:59.000Z

193

Motion planning of inspection robot suspended on overhead ground wires for obstacle-navigation  

Science Conference Proceedings (OSTI)

The purpose of inspection robot for power transmission lines is to check running state and find damages of extra-high voltage (EHV) power transmission lines equipment. The key of the control design is how to design a robot for obstacles navigation. This ... Keywords: centroid adjustment, inspection robot, obstacles navigation automatically, power transmission line

Ren Zhi-Bin; Ruan Yi; Li Zheng; Yang Yong

2009-06-01T23:59:59.000Z

194

Overhead reduction in a distributed path management system  

Science Conference Proceedings (OSTI)

CEAS (cross entropy ant system) is a distributed, robust and adaptive swarm intelligence system for path management in communication networks. This paper focuses on strategies for handling the overhead in terms of processing cycles, memory storage, and ... Keywords: Cross entropy, Path management, Swarm intelligence

Poul E. Heegaard; Otto J. Wittner

2010-04-01T23:59:59.000Z

195

EPRI Ergonomics Handbook for the Electric Power Industry  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) Occupational Health and Safety (OHS) Program has provided ergonomic information to the electric energy industry workforce since 1999. This report specifically focuses on the design of substations and interventions for tasks performed by substation operators and maintenance workers as well as overhead and underground distribution workers. Substation and field distribution line work is physically strenuous and can expose workers to musculoskeletal disorders (MSD...

2010-10-20T23:59:59.000Z

196

INTEGRATED VERTICAL AND OVERHEAD DECONTAMINATION (IVOD) SYSTEM  

Science Conference Proceedings (OSTI)

The deactivation and decommissioning of 1200 buildings within the U.S. Department of Energy-Office of Environmental Management complex will require the disposition of a large quantity of contaminated concrete and metal surfaces. It has been estimated that 23 million cubic meters of concrete and over 600,000 tons of metal will need disposition. The disposition of such large quantities of material presents difficulties in the area of decontamination and characterization. The final disposition of this large amount of material will take time and money as well as risk to the D&D work force. A single automated system that would decontaminate and characterize surfaces in one step would not only reduce the schedule and decrease cost during D&D operations but would also protect the D&D workers from unnecessary exposures to contaminated surfaces. This report summarizes the activities performed during FY00 and describes the planned activities for FY01. Accomplishments for FY00 include the following: Development and field-testing of characterization system; Completion of Title III design of deployment platform and decontamination unit; In-house testing of deployment platform and decontamination unit; Completion of system integration design; Identification of deployment site; and Completion of test plan document for deployment of IVOD at Rancho Seco nuclear power facility.

M.A. Ebadian, Ph.D.

2001-01-01T23:59:59.000Z

197

Tucson Electric Power Company Sahuarita-Nogales Transmission Line Draft Environmental Impact Statement  

Science Conference Proceedings (OSTI)

Tucson Electric Power Company (TEP) has applied to the U.S. Department of Energy (DOE) for a Presidential Permit to construct and operate a double-circuit, 345,000-volt (345-kV) electric transmission line across the United States border with Mexico. Under Executive Order (EO) 10485 of September 3, 1953, as amended by EO 12038 of February 3, 1978, a Presidential Permit is required to construct, connect, operate, or maintain facilities at the U.S. international border for the transmission of electric energy between the United States and a foreign country. DOE has determined that the issuance of a Presidential Permit to TEP for the proposed project would constitute a major Federal action that may have a significant impact on the environment within the meaning of the ''National Environmental Policy Act of 1969'' (NEPA) 42 United States Code (U.S.C.) {section}4321 et seq. For this reason, DOE has prepared this Draft Environmental Impact Statement (EIS) to evaluate potential environmental impacts from the proposed Federal action (granting a Presidential Permit for the proposed transmission facilities) and reasonable alternatives, including the No Action Alternative. This EIS was prepared in accordance with Section 102(2)(c) of NEPA, Council of Environmental Quality (CEQ) regulations (40 Code of Federal Regulations [CFR] 1500-1508), and DOE NEPA Implementing Procedures (10 CFR 1021). DOE is the lead Federal Agency, as defined by 40 CFR 1501.5. The U.S. Department of Agriculture Forest Service (USFS), the Bureau of Land Management (BLM) of the U.S. Department of the Interior, and the U.S. Section of the International Boundary and Water Commission, U.S. and Mexico (USIBWC), are cooperating agencies. Each of these organizations will use the EIS for its own NEPA purposes, as described in the Federal Agencies' Purpose and Need and Authorizing Actions section of this summary. The 345-kV double-circuit transmission line would consist of twelve transmission line wires, or conductors, and two neutral ground wires that would provide both lightning protection and fiber optic communications, on a single set of support structures. The transmission line would originate at TEP's existing South Substation (which TEP would expand), in the vicinity of Sahuarita, Arizona, and interconnect with the Citizens Communications (Citizens) system at a Gateway Substation that TEP would construct west of Nogales, Arizona. The double-circuit transmission line would continue from the Gateway Substation south to cross the U.S.-Mexico border and extend approximately 60 miles (mi) (98 kilometers [km]) into the Sonoran region of Mexico, connecting with the Comision Federal de Electricidad (CFE, the national electric utility of Mexico) at CFE's Santa Ana Substation.

N /A

2003-08-27T23:59:59.000Z

198

Wallula Power Project and Wallula - McNary Transmission Line Project, Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Final EIS Appendix A: Revised Mitigation Measures Final EIS Appendix A: Revised Mitigation Measures August 2002 Page A-1 Appendix A Revised Mitigation Measures The proposed project includes measures that would limit construction and operation impacts to elements of the natural and human environment. These measures are presented for each element of the environment identified as a potential concern by Bonneville and EFSEC based on preliminary environmental review and public and regulatory agency input. Updates to the mitigation table below are in response to comments on the Draft EIS or to incorporate new information included in the Settlement Agreements. Mitigation Measure Power Plant Pipelines Bonneville T-Line EARTH Seismicity Facilities would be designed to meet regional seismic design criteria as presented in the Uniform Building Code (UBC). X X

199

ANUEADflM-31 Electric Power High-Voltage Transmission Lines:  

Office of Scientific and Technical Information (OSTI)

ANUEADflM-31 ANUEADflM-31 Electric Power High-Voltage Transmission Lines: Design Options, Cost, and Electric and Magnetic Field Levels by J.B. Stoffel,' E.D. Pentecost, R.D. Roman, and P.A. Traczyk Environmental Assessment Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 November 1994 Work sponsored by United States Department of Energy, Assistant Secretary for Fossil Energy, Office of Fuels Program Stoffel is affiliated with Argonne's Electronics and Computing Technologies Division. D4SlRlBUTlON OF THIS DOCUMENT IS UNLiMltEb - . - . - . - . ... - , . ^ ~ .. , . . . , . . _ I T h i s report i s printed on recycled paper. @ . . .. . ' . . . A :_ - .. ., . . DISCLAIMER This report was .prepared as an account of work sponsored by an agency of the United States Government. Neither

200

Microsoft PowerPoint - [5] Le Tang - ABB Presentation at DOE HVDC Workshop  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVDC Technologies & ABB Experience HVDC Technologies & ABB Experience DOE Workshop - Applications for High-Voltage Direct Current Transmission Technologies Le Tang, ABB , April 22, 2013 In cable > 50 km (>30 miles), most of AC current is needed to charge and discharge In overhead lines > 200 km (>120 miles), most of AC voltage is needed to G G load I C = ωCU 0 U L = ωLI 0 I 0 U 0 I = I 0 - I C U=U 0 -U L Cable Overhead Line C load L Why is DC important in the Transmission Grid ? Capacitance and Inductance of Power Line © ABB Group April 22, 2013 | Slide 2 current is needed to charge and discharge the "C" (capacitance) of the cable most of AC voltage is needed to overcome the "L" (inductance) of the line ⇒ C& L can be compensated by reactors/capacitors or FACTS ⇒ or by use of DC, which means

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

On-line mechanical tube cleaning for steam electric power plants. Final report  

SciTech Connect

In July 1991, Superior I.D. Tube Cleaners, Inc. (SIDTEC{trademark}) received a grant through the Department of Energy and the Energy Related Invention Program to conduct a long term demonstration of a proprietary technology for on-line mechanical condenser tube cleaning in thermal Power plants on open or once-through cooling water systems where the warmed condenser cooling water is discharged through a canal. The purpose of the demonstration was to confirm and establish the use of this mechanical method as an alternative to the application of chemical biocides in condenser cooling water for the control of biofouling, the growth of micro-organisms which can reduce a unit`s operating efficiency. The SIDTEC on-line mechanical tube cleaner, the Rocket{trademark}, is used to physically remove accumulated deposits on the water side of the main steam condenser, and the non-intrusive tube cleaner recovery system, the Skimmer{trademark}, is used to recover and recirculate tube cleaners. The periodic circulation of tube cleaners can maintain optimum condenser cleanliness and improve unit heat rate. Thermal power plants which discharge condenser cooling water through a canal now have a viable alternative to the chemical treatment of condenser cooling water, whether the principal foulant is biofouling, chemical scaling, silting, or a combination of the three. At prices competitive with scale inhibitors, and a fraction of competing mechanical systems, this technology is provided as a service requiring no capital investment; minimal retrofit modifications to plant structures or equipment; can be installed and maintained without a unit shutdown; does not add any restrictions in the cooling water system; and is environmentally benign.

Not Available

1994-02-18T23:59:59.000Z

202

An Approach for Reduction of the Security Overhead in Smart Grid Communication Infrastructure Employing Dedicated Encryption  

E-Print Network (OSTI)

An Approach for Reduction of the Security Overhead in Smart Grid Communication Infrastructure for data secu- rity within the Smart Grid communications infrastructure. A significant part communication channels. Keywords--Smart Grid; information-communication infras- tructure; overheads; data

Kavcic, Aleksandar

203

Mode Initialization for On-line Estimation of Power System Electromechanical Modes  

SciTech Connect

Measurement-based mode estimation methods are utilized to estimate electromechanical modes of a power system using phasor measurement units (PMU) data. These methods need to extract a certain amount of information before they can give useable mode estimation. Traditionally, the information is gathered solely from measurement data. Priori mode information from other resources (e.g. model eigenvalue analysis, engineering knowledge) are not fully utilized. For real time application, this means that mode estimation takes time to converge. By adding a mode regularization term in the objective function, this paper proposes a mode initialization method to include priori mode information in a regularized robust recursive least squares (R3LS) algorithm for on-line mode estimation. The proposed method is tested using a simple model, a 17 machine model and is shown to be able to shorten the convergence period of the R3LS algorithm. The proposed method is also applied on the measurement data recorded right before a major power outage in the western North American Grid on August 10th 1996 to show its potential applica-tion in detecting an approaching small signal stability problem.

Zhou, Ning; Trudnowski, Daniel; Pierre, John W.

2009-03-18T23:59:59.000Z

204

Line-Focus Solar Power Plant Cost Reduction Plan (Milestone Report)  

DOE Green Energy (OSTI)

Line-focus solar collectors, in particular parabolic trough collectors, are the most mature and proven technology available for producing central electricity from concentrated solar energy. Because this technology has over 25 years of successful operational experience, resulting in a low perceived risk, it is likely that it will continue to be a favorite of investors for some time. The concentrating solar power (CSP) industry is developing parabolic trough projects that will cost billions of dollars, and it is supporting these projects with hundreds of millions of dollars of research and development funding. While this technology offers many advantages over conventional electricity generation -- such as utilizing plentiful domestic renewable fuel and having very low emissions of greenhouse gases and air pollutants -- it provides electricity in the intermediate power market at about twice the cost of its conventional competitor, combined cycle natural gas. The purpose of this document is to define a set of activities from fiscal year 2011 to fiscal year 2016 that will make this technology economically competitive with conventional means.

Kutscher, C.; Mehos, M.; Turchi, C.; Glatzmaier, G.; Moss, T.

2010-12-01T23:59:59.000Z

205

CLOMP: Accurately Characterizing OpenMP Application Overheads  

SciTech Connect

Despite its ease of use, OpenMP has failed to gain widespread use on large scale systems, largely due to its failure to deliver sufficient performance. Our experience indicates that the cost of initiating OpenMP regions is simply too high for the desired OpenMP usage scenario of many applications. In this paper, we introduce CLOMP, a new benchmark to characterize this aspect of OpenMP implementations accurately. CLOMP complements the existing EPCC benchmark suite to provide simple, easy to understand measurements of OpenMP overheads in the context of application usage scenarios. Our results for several OpenMP implementations demonstrate that CLOMP identifies the amount of work required to compensate for the overheads observed with EPCC. Further, we show that CLOMP also captures limitations for OpenMP parallelization on NUMA systems.

Bronevetsky, G; Gyllenhaal, J; de Supinski, B

2008-02-11T23:59:59.000Z

206

On-line partial discharge monitoring system and data processing using WTST-NST filter for high voltage power cable  

Science Conference Proceedings (OSTI)

Defects inside insulation of HV XLPE cable accessories can lead to partial discharge (PD) activity. When PD activity happens, leakage current may flow through the grounded line. To acquire the PD current signal, one practicable and effective method is ... Keywords: MRD-MRR algorithm, adaptive WTST-NST filter, condition based maintenance(CBM), on-line monitoring, partial discharge, power cable, stationary noise interference

Hui Wang; Chengjun Huang; Li Zhang; Yong Qian; Junhua Liu; Linpeng Yao; Canxin Guo; Xiuchen Jiang

2009-07-01T23:59:59.000Z

207

Bonneville Power Administration Grand Coulee-Bell 500-kV Transmission Line Project Record of Decision  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Grand Coulee-Bell 500-kV Transmission Line Project Grand Coulee-Bell 500-kV Transmission Line Project Record of Decision Decision The Bonneville Power Administration (BPA) has decided to construct the proposed Grand Coulee-Bell 500-kV Transmission Line Project in Douglas, Grant, Lincoln, and Spokane Counties, Washington. BPA has decided to implement the proposed action identified in the Grand Coulee-Bell 500-kV Transmission Line Project Final Environmental Impact Statement (DOE/EIS-0344, December 2002). The proposed action consists of constructing a new 500- kilovolt (kV) transmission line between the Bureau of Reclamation's (BOR) Grand Coulee 500- kV Switchyard near Grand Coulee, Washington, and BPA's Bell Substation near Spokane, a distance of 84 miles. The proposed action involves removing an existing 115-kV transmission

208

Stability effects of frequency controllers and transmission line configurations on power systems with integration of wind power  

E-Print Network (OSTI)

This thesis investigates the stability effects of the integration of wind power on multi-machine power systems. First, the small-signal stability effects of turbine governors connected to synchronous generators in the ...

Abdelhalim, Hussein Mohamed

2012-01-01T23:59:59.000Z

209

Line focus solar central power systems. Phase I. Final report, September 30, 1978-October 31, 1979  

DOE Green Energy (OSTI)

A conceptual design study was performed of a stand-alone Line Focus Solar Central Power System based on the fixed mirror solar concentrator (FMSC) for heat collection and draw salt (a 50% molar mixture of sodium nitrate and potassium nitrate) for heat transport and storage. Parametric analyses were performed at the subsystem level, and models were developed that were employed in a computerized simulation to minimize the cost of electricity (COE) by adjusting system design parameters. A design was prepared and costed for a first commercial plant with a rating of 100 MW(e) and a storage capacity equivalent to 420 MW(e)-hr of generation. The resulting plant achieves an annual capacity of 45.6%. Scaling studies indicate reductions in the COE for increased capacity factor and increased plant rating. Assessments of the plant concept indicate it should be acceptable to utilities on the basis of technical and operational considerations, but that reductions from the first 100-MW(e) plant cost would be required to achieve substantial market penetration.

Not Available

1979-09-01T23:59:59.000Z

210

EA-1679: Grand Coulee's Third Powerplant 500-kV Transmission Line  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

79: Grand Coulee's Third Powerplant 500-kV Transmission Line 79: Grand Coulee's Third Powerplant 500-kV Transmission Line Replacement Project, Grant and Okanogon Counties, Washington EA-1679: Grand Coulee's Third Powerplant 500-kV Transmission Line Replacement Project, Grant and Okanogon Counties, Washington Summary This EA evaluates potential environmental impacts from the construction and operation of six new 500-kV overhead transmission lines to replace six existing underground lines at Grand Coulee Dam. DOE's Bonneville Power Administration (BPA), a cooperating agency, was asked by the U. S. Department of the Interior's Bureau of Reclamation to design and construct the proposed new transmission lines. A Finding of No Significant Impact was issued by BPA in December 2011. BPA website: http://efw.bpa.gov/environmental_services/Document_Library/Grand_Coulee/

211

Radiological Assessment for the Removal of Legacy BPA Power Lines that Cross the Hanford Site  

SciTech Connect

This paper discusses some radiological field monitoring and assessment methods used to assess the components of an old electrical power transmission line that ran across the Hanford Site between the production reactors area (100 Area) and the chemical processing area (200 Area). This task was complicated by the presence of radon daughters?both beta and alpha emitters?residing on the surfaces, particularly on the surfaces of weathered metals and metals that had been electrically-charged. In many cases, these activities were high compared to the DOE Surface Contamination Guidelines, which were used as guides for the assessment. These methods included the use of the Toulmin model of argument?represented using Toulmin diagrams-- to represent the combined force of several strands of evidences, rather than a single measurement of activity, to demonstrate beyond a reasonable doubt that no or very little Hanford activity was present and mixed with the natural activity. A number of forms of evidence were used: the overall chance of Hanford contamination; measurements of removable activity, beta and alpha; 1-minute scaler counts of total surface activity, beta and alpha, using ?background makers?; the beta activity to alpha activity ratios; measured contamination on nearby components; NaI gamma spectral measurements to compare uncontaminated and potentially-contaminated spectra, as well as measurements for the sentinel radionuclides, Am- 241 and Cs-137 on conducting wire; comparative statistical analyses; and in-situ measurements of alpha spectra on conducting wire showing that the alpha activity was natural Po-210, as well as to compare uncontaminated and potentially-contaminated spectra.

Millsap, William J.; Brush, Daniel J.

2013-11-13T23:59:59.000Z

212

Big George to Carter Mountain 115-kV transmission line project, Park and Hot Springs Counties, Wyoming. Environmental Assessment  

SciTech Connect

The Western Area Power Administration (Western) is proposing to rebuild, operate, and maintain a 115-kilovolt (kV) transmission line between the Big George and Carter Mountain Substations in northwest Wyoming (Park and Hot Springs Counties). This environmental assessment (EA) was prepared in compliance with the National Environmental Policy Act (NEPA) and the regulations of the Council on Environmental Quality (CEQ) and the Department of Energy (DOE). The existing Big George to Carter Mountain 69-kV transmission line was constructed in 1941 by the US Department of Interior, Bureau of Reclamation, with 1/0 copper conductor on wood-pole H-frame structures without an overhead ground wire. The line should be replaced because of the deteriorated condition of the wood-pole H-frame structures. Because the line lacks an overhead ground wire, it is subject to numerous outages caused by lightning. The line will be 54 years old in 1995, which is the target date for line replacement. The normal service life of a wood-pole line is 45 years. Under the No Action Alternative, no new transmission lines would be built in the project area. The existing 69-kV transmission line would continue to operate with routine maintenance, with no provisions made for replacement.

1994-02-01T23:59:59.000Z

213

Assessment of Wind Loads On Power Lines--Methodology and Applications  

Science Conference Proceedings (OSTI)

Wind load on electrical conductors is one of the most critical design loads for transmission structures, but many methods of determining wind load have only recently been validated experimentally. This document draws on EPRI field research to assist engineers in accurately determining design wind loads for conductors and helping utilities construct new transmission lines and upgrade existing lines at minimum cost while retaining reliability.

1997-08-12T23:59:59.000Z

214

Achieving Robustness and Minimizing Overhead in Parallel Algorithms Through Overlapped Communication/Computation  

Science Conference Proceedings (OSTI)

One of the major goals in the design of parallel processing machines and algorithms is to achieve robustness and reduce the effects of the overhead introduced when a given problem is parallelized or a fault occurs. A key contributor to overhead is communication ... Keywords: Proteus Parallel Computer System, communication overhead, complete exchange, fault tolerance, overlapping computing and communication, partitioning and scheduling for high-performance

Arun K. Somani; Allen M. Sansano

2000-05-01T23:59:59.000Z

215

Fast-wave Power Flow Along SOL Field Lines In NSTX nd The Associated Power Deposition Profile Across The SOL In Front Of The Antenna  

SciTech Connect

Fast-wave heating and current drive efficiencies can be reduced by a number of processes in the vicinity of the antenna and in the scrape off layer (SOL). On NSTX from around 25% to more than 60% of the high-harmonic fast-wave power can be lost to the SOL regions, and a large part of this lost power flows along SOL magnetic field lines and is deposited in bright spirals on the divertor floor and ceiling. We show that field-line mapping matches the location of heat deposition on the lower divertor, albeit with a portion of the heat outside of the predictions. The field-line mapping can then be used to partially reconstruct the profile of lost fast-wave power at the midplane in front of the antenna, and the losses peak close to the last closed flux surface (LCFS) as well as the antenna. This profile suggests a radial standing-wave pattern formed by fast-wave propagation in the SOL, and this hypothesis will be tested on NSTX-U. Advanced RF codes must reproduce these results so that such codes can be used to understand this edge loss and to minimize RF heat deposition and erosion in the divertor region on ITER.

Perkins, Roy

2013-06-21T23:59:59.000Z

216

DOE-HDBK-1143-2001; Radiological Control Training for Supervisors - Overheads  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Control Training for Supervisors Control Training for Supervisors DOE-HDBK-1143-2001 Overheads Office of Environment, Safety & Health U.S. Department of Energy Radiological Control Training for Supervisors DOE-HDBK-1143-2001 Overheads This page intentionally left blank. ii OT 1.1 DOE-HDBK-1143-2001 Overhead 1.1 Regulatory Documents Objectives: * Identify the hierarchy of regulatory documents. * Define the purposes of 10 CFR Parts 820, 830 and 835. * Define the purpose of the DOE Radiological Control Standard. OT 1.2 DOE-HDBK-1143-2001 Overhead 1.2 Regulatory Documents (cont.) Objectives: * Define the terms

217

Numerical investigation of the physical model of a high-power electromagnetic wave in a magnetically insulated transmission line  

SciTech Connect

An efficient numerical code for simulating the propagation of a high-power electromagnetic pulse in a vacuum transmission line is required to study the physical phenomena occurring in such a line, to analyze the operation of present-day megavolt generators at an {approx}10-TW power level, and to design such new devices. The main physical theoretical principles are presented, and the stability of flows in the near-threshold region at the boundary of the regime of magnetic self-insulation is investigated based on one-dimensional telegraph equations with electron losses. Numerical (difference) methods-specifically, a method of characteristics and a finite-difference scheme-are described and their properties and effectiveness are compared by analyzing the high-frequency modes.

Samokhin, A. A. [Troitsk Institute for Innovation and Fusion Research (Russian Federation)

2010-02-15T23:59:59.000Z

218

Line-focus solar central power systems, Phase I. Monthly technical progress report, 29 September 1978-31 October 1978  

DOE Green Energy (OSTI)

The objectives of this contract are to provide a conceptual design of a commercial High Temperature Line-Focus 100 MWe Central Power Plant that can produce low cost electricity. To achieve this objective, parametric analyses of the subsystems will be performed to optimize the system. The cost of the optimized plant and its cost of electricity will be used to make an assessment of its potential for commercialization. Progress is reported.

Slemmons, A.J.

1978-11-01T23:59:59.000Z

219

EPRI Comments on a French Study of Residential Proximity to High-Voltage Power Lines and Childhood Leukemia  

Science Conference Proceedings (OSTI)

Results of a French case-control epidemiologic study of residential proximity to high-voltage power lines and risk of childhood acute leukemia were published in the British Journal of Cancer.  The EPRI Comments provides background information on the study, summarizes the main results and discusses the study’s strength and limitations. The EPRI Comments also highlights an ongoing EPRI-funded epidemiologic study in California that is expected to provide further insight ...

2013-04-23T23:59:59.000Z

220

Use of a Geographic Mapping Tool in Power Line Routing for RF Hazard Identification: A Feasibility Evaluation  

Science Conference Proceedings (OSTI)

Radiofrequency (RF) fields induce currents and voltages on conductive objects with the general finding that larger or longer or taller objects, such as power lines and tall cranes, can result in greater currents and voltages. Medium wave frequencies (MF) associated with operation of AM radio broadcast stations are particularly prone to induction of RF voltages on long and/or tall cables that present the potential for arcing to ground or personnel who may initiate contact with the conductor. MF includes t...

2011-11-16T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Number of lightning discharges causing damage to lightning arrester cables for aerial transmission lines in power systems  

SciTech Connect

Damage by lightning discharges to lightning arrester cables for 110-175 kV aerial transmission lines is analyzed using data from power systems on incidents with aerial transmission lines over a ten year operating period (1997-2006). It is found that failures of lightning arrester cables occur when a tensile force acts on a cable heated to the melting point by a lightning current. The lightning currents required to heat a cable to this extent are greater for larger cable cross sections. The probability that a lightning discharge will develop decreases as the amplitude of the lightning current increases, which greatly reduces the number of lightning discharges which damage TK-70 cables compared to TK-50 cables. In order to increase the reliability of lightning arrester cables for 110 kV aerial transmission lines, TK-70 cables should be used in place of TK-50 cables. The number of lightning discharges per year which damage lightning arrester cables is lowered when the density of aerial transmission lines is reduced within the territory of electrical power systems. An approximate relationship between these two parameters is obtained.

Nikiforov, E. P. [Electric Power Scientific Research Institute (VNIIE), branch of OAO 'NTTs Elektroenergetika' (Russian Federation)

2009-07-15T23:59:59.000Z

222

SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report (Report and Appendices)  

Science Conference Proceedings (OSTI)

This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses.

Chandler, K.; Eudy, L.

2008-06-01T23:59:59.000Z

223

Demo: Achieving robust sensor networks through close coordination between narrow-band power line and low-power wireless communications  

Science Conference Proceedings (OSTI)

Sensor networks are increasingly available in home and industry automation applications. The use of battery-powered wireless sensor nodes eases network deployment, but the dynamic wireless medium, along with energy and bandwidth constraints, poses a ... Keywords: PLC, coordination, hybrid, robustness, wireless

Yanjun Sun; Sandeep Bhadra; Soon-Hyeok Choi; Minghua Fu; Xiaolin Lu

2011-11-01T23:59:59.000Z

224

Effective Methods in Reducing Communication Overheads in Solving  

NLE Websites -- All DOE Office Websites (Extended Search)

0/2002 Yun (Helen) He, GHC2002 1 0/2002 Yun (Helen) He, GHC2002 1 Effective Methods in Reducing Communication Overheads in Solving PDE Problems on Distributed-Memory Computer Architectures Chris Ding and Yun (Helen) He Lawrence Berkeley National Laboratory 10/10/2002 Yun (Helen) He, GHC2002 2 Outline n Introduction n Traditional Method n Ghost Cell Expansion (GCE) Method n GCE Algorithm n Diagonal Communication Elimination (DCE) Technique n Analysis of GCE Method n Message Volume n Communication Time n Memory Usage and Computational Cost n Performance n Test Problem n Test Results n Conclusions 10/10/2002 Yun (Helen) He, GHC2002 3 Background n On a distributed system, each processor holds a problem

225

Wireless Sensor Network for Electric Transmission Line Monitoring  

SciTech Connect

Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

Alphenaar, Bruce

2009-06-30T23:59:59.000Z

226

Notice of Intent to Prepare an Environmental Impact Statement for the Proposed Sutter Power Plant and Transmission Line Project, California  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2 2 Federal Register / Vol. 63, No. 30 / Friday, February 13, 1998 / Notices taken, but will not serve to make protestants parties to the proceeding. Any person wishing to become a party must file a motion to intervene. Copies of his filing are on file with the Commission and are available for public inspection in the Public Reference Room. David P. Boergers, Acting Secretary. [FR Doc. 98-3659 Filed 2-12-98; 8:45 am] BILLING CODE 6717-01-M DEPARTMENT OF ENERGY Western Area Power Administration Notice of Intent To Prepare an Environmental Impact Statement for the Proposed Sutter Power Plant and Transmission Line Project, California AGENCY: Western Area Power Administration, DOE. ACTION: Notice of intent to prepare an Environmental Impact Statement. SUMMARY: In accordance with Section

227

Increased Power Flow Wizard (IPFWiz) 2.2  

Science Conference Proceedings (OSTI)

IPF Wizard 2.2 ranks uprating methods for existing overhead lines, substation strain bus, and underground cables. IPF Wizard 2.2 presents the design engineer or system planning engineer with ranked lists of uprating methods for existing overhead lines and underground cables. The user supplies answers to basic questions regarding the original line/cable design, the present physical state of the line, and the planning goals for the line uprating. The IPF Wizard will provide recommendations regarding uprati...

2011-11-23T23:59:59.000Z

228

Design and Validation of a Mobile Robot for PowerDesign and Validation of a Mobile Robot for PowerDesign and Validation of a Mobile Robot for PowerDesign and Validation of a Mobile Robot for Power Line Inspection and MaintenanceLine Inspection and Mainten  

E-Print Network (OSTI)

Montambault1 and Nicolas Pouliot2 Hydro-Québec Research Institute (IREQ) 1740 Lionel-Boulet Blvd, Varennes even though power line maintenance work must be car- ried out routinely in hostile environments as part of a Hydro-Québec research program that aims at pro- viding robotic technologies to perform

Paris-Sud XI, Université de

229

An analytical model for input-buffered optical packet switches with reconfiguration overhead  

Science Conference Proceedings (OSTI)

The overhead associated with reconfiguring a switch fabric in optical packet switches is an important issue in relation to the packet transmission time and can adversely affect switch performance. The reconfiguration overhead increases the mean waiting ... Keywords: Batch arrival, Discrete-time system, Optical communication, Stochastic analysis, Stochastic decomposition

Kuan-Hung Chou; Woei Lin

2011-12-01T23:59:59.000Z

230

Cost-free scan: a low-overhead scan path design methodology  

Science Conference Proceedings (OSTI)

Conventional scan design imposes considerable area and delay overhead by using larger scan flip-flops and additional scan wires without utilizing the functionality of the combinational logic. We propose a novel low-overhead scan design methodology, called ... Keywords: Scan design, DFT, Testing

Chih-Chang Lin; Mike Tien-Chien Lee; Malgorzata Marek-Sadowska; Kuang-Chien Chen

1995-12-01T23:59:59.000Z

231

Design and performance evaluation of a low-power data-line SRAM sense amplifier  

E-Print Network (OSTI)

The SRAM which functions as the cache for system-on-chip is vital in the electronic industry. The heavy bit-and data-line capacitances are the major road blocks to its performance. A high-performance SRAM is proposed using ...

Fu, Haitao

232

Power Line Fault Current Coupling to Nearby Natural Gas Pipelines, Volumes 1-3  

Science Conference Proceedings (OSTI)

The Electromagnetic and Conductive Coupling Analysis of Powerlines and Pipelines (ECCAPP) computer program provides an easy-to-use method for analyzing the effects of transmission lines on gas pipelines. The program models conductive and inductive interference, enabling electrical and gas engineers to identify these effects and design mitigation systems when necessary.

1987-11-24T23:59:59.000Z

233

Ecological benefits of dc power transmission  

Science Conference Proceedings (OSTI)

The environmental effects of dc overhead transmission lines are examined. The major effects of ac and dc transmission lines are compared. Dc lines have advantages compared to ac lines in terms of electrical safety for people under the lines, biological effects, corona losses, and clearance width.

Kutuzova, N. B. [JSC 'NIIPT' (Russian Federation)

2011-05-15T23:59:59.000Z

234

Tests with a line-commutated converter as a variable inductive load on the Bonneville Power Administration transmission system  

DOE Green Energy (OSTI)

A twelve-pulse, line-commutated converter, with a steady-state rating of 2.5 kV and 5.5 kA, formerly used for charging and discharging a superconducting magnet, was reconfigured as a static reactive power load. Tests staged at the Tacoma, WA, substation of the Bonneville Power Administration (BPA) revealed that the converter could be used as a variable inductive load, provided a stable current controller was installed. The unit was modulated as a variable VAR load following a sinusoidal VAR demand signal with an amplitude up to 14.8 MVAR. The total losses at maximum VAR output were 370 kW. This paper explains the necessary modifications of the converter to operate as a variable reactive load. Measured current waveshapes are analyzed. The effects of such a load on the BPA transmission system are presented.

Boenig, H.J.; Hauer, J.F.; Nielsen, R.G.

1986-01-01T23:59:59.000Z

235

VPM tokens: virtual machine-aware power budgeting in datacenters  

Science Conference Proceedings (OSTI)

Power consumption and cooling overheads are becoming increasingly significant for enterprise datacenters, affecting overall costs and the ability to extend resource capacities. To help mitigate these issues, active power management technologies are being ... Keywords: Power management, Virtualization

Ripal Nathuji; Karsten Schwan; Ankit Somani; Yogendra Joshi

2009-06-01T23:59:59.000Z

236

Bonneville Power Administration Kangley-Echo Lake Transmission Line Project Record of Decision (DOE/EIS-0317) (7/21/03)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bonneville Power Administration Bonneville Power Administration Kangley-Echo Lake Transmission Line Project Record of Decision Decision The Bonneville Power Administration (BPA) has decided to construct the proposed Kangley-Echo Lake Transmission Line Project in King County, Washington. BPA has decided to implement the Proposed Action (Alternative 1) identified in the Kangley-Echo Lake Transmission Line Project Final Environmental Impact Statement (DOE/EIS-0317-S1, June 2003). This decision is made thirty (30) days after publication of the notice for a final EIS (June 20, 2003) in the Federal Register. The Proposed Action consists of constructing a new 500-kilovolt (kV) transmission line from a tap point on an existing 500-kV line near Kangley, Washington, to BPA's Echo Lake

237

SULFUR REMOVAL FROM PIPE LINE NATURAL GAS FUEL: APPLICATION TO FUEL CELL POWER GENERATION SYSTEMS  

DOE Green Energy (OSTI)

Pipeline natural gas is being considered as the fuel of choice for utilization in fuel cell-based distributed generation systems because of its abundant supply and the existing supply infrastructure (1). For effective utilization in fuel cells, pipeline gas requires efficient removal of sulfur impurities (naturally occurring sulfur compounds or sulfur bearing odorants) to prevent the electrical performance degradation of the fuel cell system. Sulfur odorants such as thiols and sulfides are added to pipeline natural gas and to LPG to ensure safe handling during transportation and utilization. The odorants allow the detection of minute gas line leaks, thereby minimizing the potential for explosions or fires.

King, David L.; Birnbaum, Jerome C.; Singh, Prabhakar

2003-11-21T23:59:59.000Z

238

Modelling Solar Oscillation Power Spectra: II. Parametric Model of Spectral Lines Observed in Doppler Velocity Measurements  

E-Print Network (OSTI)

We describe a global parametric model for the observed power spectra of solar oscillations of intermediate and low degree. A physically motivated parameterization is used as a substitute for a direct description of mode excitation and damping as these mechanisms remain poorly understood. The model is targeted at the accurate fitting of power spectra coming from Doppler velocity measurements and uses an adaptive response function that accounts for both the vertical and horizontal components of the velocity field on the solar surface and for possible instrumental and observational distortions. The model is continuous in frequency, can easily be adapted to intensity measurements and extends naturally to the analysis of high-frequency pseudo modes (interference peaks at frequencies above the atmospheric acoustic cutoff).

Vorontsov, Sergei V

2013-01-01T23:59:59.000Z

239

Inspection and Assessment of Overhead Transmission Line Hardware: State of Art Technologies and Future Development  

Science Conference Proceedings (OSTI)

This report provides background on the mechanisms of atmospheric corrosion and the environmental factors that affect it and describes an on-going research effort to develop  new field methods based on electrochemical impedance spectroscopy (EIS) and capacitance discharge rate (CDR) to assess the status of coating systems.BackgroundCoating systems provide a highly resistive barrier that prevents the environment from ...

2012-12-12T23:59:59.000Z

240

Field Guide: Daytime Discharge Inspection of Transmission and Distribution Overhead Lines and Substations – Guide with Video  

Science Conference Proceedings (OSTI)

This EPRI visual guide, one of a series of field guides designed to support inspection and assessment of transmission components, is devoted to the subject of daytime discharge inspection. Although technology for viewing corona and arcing discharges during the day has been available for a number of years, it can be rather difficult to interpret the images produced by this technology. This systematically organized document was prepared to help overcome some of these difficulties. It is intended for ...

2013-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Suburban citizenship  

E-Print Network (OSTI)

Powerlink involved overhead lines to be strung from one endthan the planned overhead lines would have been. They arguesaw the overhead high tension power lines as a threat to

Vandehey, Scott Lawrence

2009-01-01T23:59:59.000Z

242

Line-focus solar central power system, Phase I. Final report, 29 September 1978 to 30 April 1980. Volume II. Text  

DOE Green Energy (OSTI)

The conceptual design, parametric analysis, cost and performance analysis, and a commercial assessment of a 100-MWe high-temperature line-focus central power system are presented. Parametric analyses and conceptual design of the heliostat subsystem, receiver subsystem, heat transport subsystem, energy storage subsystem, electrical power generating subsystem, and master control subsystem are included. A market analysis and development plan are given. (WHK)

Slemmons, A.J.

1980-04-01T23:59:59.000Z

243

Record of Decision for the Interconnection of the Sutter Power Project With the Western Area Power Administration's Keswick-Elverta/Olinda-Elverta 230-Kilovolt Double-Circuit Transmission Line, June 15, 1999  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

41 41 Federal Register / Vol. 64, No. 114 / Tuesday, June 15, 1999 / Notices DEPARTMENT OF ENERGY Western Area Power Administration Record of Decision for the Interconnection of the Sutter Power Project With the Western Area Power Administration's Keswick-Elverta/ Olinda-Elverta 230-Kilovolt Double- Circuit Transmission Line AGENCY: Western Area Power Administration, DOE. ACTION: Record of decision. SUMMARY: The Western Area Power Administration (Western) prepared this Record of Decision in response to a request submitted to Western for a direct interconnection of Calpine Corporation's (Calpine) proposed Sutter Power Project (SPP) with Western's electric transmission system. In response to this request, Western completed an Interconnection Feasibility Study that determined that

244

Single and three-phase AC losses in HTS superconducting power transmission line prototype cables  

SciTech Connect

AC losses in two, one-meter-long lengths of HTS prototype multi-strand conductors (PMC`s) are measured with a temperature-difference calorimeter. Both single-phase and three-phase losses are examined with ac currents up to 1,000 A rms. The calorimeter, designed specifically for these measurements, has a precision of 1 mW. PMC {number_sign}1 has two helically-wound, non-insulated layers of HTS tape (19 tapes per layer), each layer wrapped with opposite pitch. PMC {number_sign}2 is identical except for insulation between the layers. The measured ac losses show no significant effect of interlayer insulation and depend on about the third power of the current--a result in agreement with the Bean-Norris model adapted to the double-helix configuration. The three-phase losses are a factor of two higher than those exhibited by a single isolated conductor, indicating a significant interaction between phases.

Daney, D.E.; Boenig, H.J.; Maley, M.P.; Coulter, J.Y. [Los Alamos National Lab., NM (United States); Fleshler, S. [American Superconductor, Inc., Westborough, MA (United States)

1997-11-01T23:59:59.000Z

245

For the Grid and Through the Grid: The Role of Power Line Communications in the Smart Grid  

E-Print Network (OSTI)

Is Power Line Communication (PLC) a good candidate for Smart Grid applications? The objective of this paper is to address this important question. To do so we provide an overview of what PLC can deliver today by surveying its history and describing the most recent technological advances in the area. We then address Smart Grid applications as instances of sensor networking and network control problems and discuss the main conclusion one can draw from the literature on these subjects. The application scenario of PLC within the Smart Grid is then analyzed in detail. Since a necessary ingredient of network planning is modeling, we also discuss two aspects of engineering modeling that relate to our question. The first aspect is modeling the PLC channel through fading models. The second aspect we review is the Smart Grid control and traffic modeling problem which allows us to achieve a better understanding of the communications requirements. Finally, this paper reports recent studies on the electrical and topologic...

Galli, Stefano; Wang, Zhifang

2010-01-01T23:59:59.000Z

246

Guide for Transmission Line Grounding  

Science Conference Proceedings (OSTI)

Electrical utilities have a duty to provide effective grounding for managing steady-state and fault currents, whether near a large generating station or at a remote distribution pole ground. For transmission lines, this imperative is usually met with investment in overhead ground wires and grounding electrodes. Effective grounding at each tower improves reliability8212by providing low path impedance to lightning strokes8212and contributes to safety. However, the fundamental physical parameters in ground ...

2007-12-20T23:59:59.000Z

247

IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, VOL. 1, NO. 3, SEPTEMBER 2011 289 PowerSleep: A Smart Power-Saving Scheme With  

E-Print Network (OSTI)

rate . · For short transition overhead such as , the performance is the same for both Power], a PowerNap scheme was proposed to handle the dom- inant idle time by quickly transitioning in and out is in the transition mode. The transition overhead depends on which sleep state the system enters. For example

Wang, Shengquan

248

PowerNap: Eliminating Server Idle Power David Meisner  

E-Print Network (OSTI)

determine that PowerNap is effective if state transition time is below 10ms, and incurs no overheads below 1, unlike consumer devices, servers cannot rely on the user to transition between power states; they must manage ACPI state transitions and would coordinate PowerNap transitions. A typical service processor

Wenisch, Thomas F.

249

A Neural Network Model for Construction Projects Site Overhead Cost Estimating in Egypt  

E-Print Network (OSTI)

Estimating of the overhead costs of building construction projects is an important task in the management of these projects. The quality of construction management depends heavily on their accurate cost estimation. Construction costs prediction is a very difficult and sophisticated task especially when using manual calculation methods. This paper uses Artificial Neural Network (ANN) approach to develop a parametric cost-estimating model for site overhead cost in Egypt. Fifty-two actual real-life cases of building projects constructed in Egypt during the seven year period 2002-2009 were used as training materials. The neural network architecture is presented for the estimation of the site overhead costs as a percentage from the total project price.

ElSawy, Ismaail; Razek, Mohammed Abdel

2011-01-01T23:59:59.000Z

250

On-line Task Granularity Adaptation for Dynamic Grid Applications  

E-Print Network (OSTI)

On-line Task Granularity Adaptation for Dynamic Grid Applications Nithiapidary Muthuvelu1, Ian Chai by adjusting the task granularity at the grid scheduler. We propose an on-line scheduling algorithm which@csse.unimelb.edu.au Abstract. Deploying lightweight tasks on grid resources would let the commu- nication overhead dominate

Buyya, Rajkumar

251

EIS-0442: Reauthorization of Permits, Maintenance, and Vegetation Management on Western Area Power Administration Transmission Lines on Forest Service Lands, Colorado, Nebraska, and Utah  

Energy.gov (U.S. Department of Energy (DOE))

This EIS is being prepared jointly by DOE’s Western Area Power Administration and the U.S. Forest Service. The EIS evaluates the potential environmental impacts of Western’s proposed changes to vegetation management along its transmission line rights-of-way on National Forest System lands in Colorado, Utah, and Nebraska.

252

Summit-Watertown transmission line project, South Dakota. Final Environmental Assessment  

SciTech Connect

The Western Area Power Administration (Western) needs to rebuild the existing Summit-Watertown 115-kV transmission line, located in northeastern South Dakota, and western Minnesota. Nearly 60 percent of the existing facility was replaced in 1965 after severe ice-loading broke structures and wires. Because of the extensive loss of the line, surplus poles had to be used to replace the damaged H-frame structures. These were of varying sizes, causing improper structure loading. Additionally, the conductors and overhead shield wires have been spliced in numerous places. This provides additional space on these wires for icing and wind resistance, which in turn create problems for reliability. Finally, a progressive fungal condition has weakened the poles and, along with the improper loading, has created an unsafe condition for maintenance personnel and the general public.

1993-12-01T23:59:59.000Z

253

Reduce Overhead, Implement Energy Efficiency in Water/Wastewater  

E-Print Network (OSTI)

Through the Focus on Energy program in the State of Wisconsin we have been able to identify savings for industries in their water/wastewater treatment or distribution systems. Modifications required to realize savings resulted in reduced energy consumption and reduced cost to industry. Reduced cost is a pleasant benefit when the cost of utility bills comes off the bottom line and if the industry is working on a 5 percent margin the actual value of the savings could be considered to be 20 times its actual savings. Modifications can be made in wastewater treatment applications by adjusting dissolved oxygen (DO) levels in treatment process, modifying aeration system blowers, changing diffusers, and considering a DO automatic control system. In water systems, changes in pump operations by not throttling valves for control, adding variable speed drives to constant speed operations, and reducing pressure on systems where it will not adversely impact the process.

Cantwell, J. C.

2007-01-01T23:59:59.000Z

254

Rhodium self-powered neutron detector as a suitable on-line thermal neutron flux monitor in BNCT treatments  

Science Conference Proceedings (OSTI)

Purpose: A rhodium self-powered neutron detector (Rh SPND) has been specifically developed by the Comision Nacional de Energia Atomica (CNEA) of Argentina to measure locally and in real time thermal neutron fluxes in patients treated with boron neutron capture therapy (BNCT). In this work, the thermal and epithermal neutron response of the Rh SPND was evaluated by studying the detector response to two different reactor spectra. In addition, during clinical trials of the BNCT Project of the CNEA, on-line neutron flux measurements using the specially designed detector were assessed. Methods: The first calibration of the detector was done with the well-thermalized neutron spectrum of the CNEA RA-3 reactor thermal column. For this purpose, the reactor spectrum was approximated by a Maxwell-Boltzmann distribution in the thermal energy range. The second calibration was done at different positions along the central axis of a water-filled cylindrical phantom, placed in the mixed thermal-epithermal neutron beam of CNEA RA-6 reactor. In this latter case, the RA-6 neutron spectrum had been well characterized by both calculation and measurement, and it presented some marked differences with the ideal spectrum considered for SPND calibrations at RA-3. In addition, the RA-6 neutron spectrum varied with depth in the water phantom and thus the percentage of the epithermal contribution to the total neutron flux changed at each measurement location. Local (one point-position) and global (several points-positions) and thermal and mixed-field thermal neutron sensitivities were determined from these measurements. Thermal neutron flux was also measured during BNCT clinical trials within the irradiation fields incident on the patients. In order to achieve this, the detector was placed on patient's skin at dosimetric reference points for each one of the fields. System stability was adequate for this kind of measurement. Results: Local mixed-field thermal neutron sensitivities and global thermal and mixed-field thermal neutron sensitivities derived from measurements performed at the RA-6 were compared and no significant differences were found. Global RA-6-based thermal neutron sensitivity showed agreement with pure thermal neutron sensitivity measurements performed in the RA-3 spectrum. Additionally, the detector response proved nearly unchanged by differences in neutron spectra from real (RA-6 BNCT beam) and ideal (considered for calibration calculations at RA-3) neutron source descriptions. The results confirm that the special design of the Rh SPND can be considered as having a pure thermal response for neutron spectra with epithermal-to-thermal flux ratios up to 12%. In addition, the linear response of the detector to thermal flux allows the use of a mixed-field thermal neutron sensitivity of 1.95 {+-} 0.05 x 10{sup -21} A n{sup -1}{center_dot}cm{sup 2}{center_dot}s. This sensitivity can be used in spectra with up to 21% epithermal-to-thermal flux ratio without significant error due to epithermal neutron and gamma induced effects. The values of the measured fluxes in clinical applications had discrepancies with calculated results that were in the range of -25% to +30%, which shows the importance of a local on-line independent measurement as part of a treatment planning quality control system. Conclusions: The usefulness of the CNEA Rh SPND for the on-line local measurement of thermal neutron flux on BNCT patients has been demonstrated based on an appropriate neutron spectra calibration and clinical applications.

Miller, Marcelo E.; Sztejnberg, Manuel L.; Gonzalez, Sara J.; Thorp, Silvia I.; Longhino, Juan M.; Estryk, Guillermo [Comision Nacional de Energia Atomica, Av. del Libertador 8250, Ciudad de Buenos Aires 1429 (Argentina); Comision Nacional de Energia Atomica, Av. del Libertador 8250, Ciudad de Buenos Aires 1429, Argentina and CONICET, Av. Rivadavia 1917, Ciudad de Buenos Aires 1033 (Argentina); Comision Nacional de Energia Atomica, Av. del Libertador 8250, Ciudad de Buenos Aires 1429 (Argentina)

2011-12-15T23:59:59.000Z

255

EPRI Transmission Line Reference Book: 115-345 kV Compact Line Design, The Blue Book  

Science Conference Proceedings (OSTI)

This report is an updated edition of the industry standard on overhead line compaction, the EPRI Transmission Line Reference Book: 115-138 kV Compact Line Design, commonly known as the "Blue Book," which was last published in 1978. Publication of this new edition is the culmination of three years of research by a team of experts in the field. The report includes the latest information on research, technology, materials, and utility experience with compact lines.

2008-11-05T23:59:59.000Z

256

Multi-stage programming with functors and monads: Eliminating abstraction overhead from generic code  

Science Conference Proceedings (OSTI)

We use multi-stage programming, monads and Ocaml's advanced module system to demonstrate how to eliminate all abstraction overhead from generic programs, while avoiding any inspection of the resulting code. We demonstrate this clearly with Gaussian Elimination ... Keywords: Functor, Generative, Genericity, Linear algebra, MetaOCaml, Staging, Symbolic

Jacques Carette; Oleg Kiselyov

2011-05-01T23:59:59.000Z

257

Predicting energy and performance overhead of real-time operating systems  

Science Conference Proceedings (OSTI)

We present a high-level method for rapidly and accurately estimating energy and performance overhead of Real-Time Operating Systems. Unlike most other approaches, which rely on Transaction-Level Modeling (TLM), we infer the information we need directly ...

Sandro Penolazzi; Ingo Sander; Ahmed Hemani

2010-03-01T23:59:59.000Z

258

PowerSleep: A Smart Power-Saving Scheme with Sleep for Servers under Response Time Constraint  

E-Print Network (OSTI)

to handle the dominant idle time by quickly transitioning in and out of a low power sleep mode. Under Power PowerNap significantly, in particular when the single mode transition overhead is large. In the study is in the transition mode. The power consumption in our study is the system-level power, including the power consumed

Wang, Shengquan

259

Evaluation of Emerging Line Inspection Technologies: Results of 2012 Outdoor Laboratory Tests  

Science Conference Proceedings (OSTI)

This report describes outdoor laboratory testing performed in 2012 to evaluate different approaches to establish conductor temperature during a helicopter-based Lidar field survey of an existing overhead transmission line. Establishing conductor temperature during Lidar surveys is necessary to assemble a line model to determine line sags, and thus clearances, under full rating and specified environmental conditions. ...

2013-09-26T23:59:59.000Z

260

Application of the Global Positioning System to the Measurement of Overhead Power Transmission Conductor Sag  

E-Print Network (OSTI)

, incident solar radiation, limiting physical conductor characteristics, and conductor configuration case weather condi- tion is assumed while in the dynamic case the actual weather condition is taken

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Interfacial Electrical Conductivity Enhancement of Aluminum ...  

Science Conference Proceedings (OSTI)

... are commonly used as conductor materials on overhead power transmission systems. ... temperature that endangers the reliability of power line components.

262

Neutral beam shine-through power and its dependence on the line density of the DIII-D plasma  

SciTech Connect

Neutral beams are the primary source of auxiliary plasma heating in the DIII-D Tokamak. Part of the beam power passes through the plasma and is deposited on the wall of the tokamak (shine-through power) and does not contribute to plasma heating. It is therefore crucial to know the shine-through power in order to give an accurate account of the total power deposited in the plasma. The authors have recently remeasured the shine-through power using data taken from thermocouples embedded in the beam target tiles of the tokamak vessel. The tile temperature rise was correlated to the injected beam power. A dependence of the tile temperature rise don the initial tile temperature has been empirically measured and accounted for in order to obtain a more accurate determination of the shine-through beam power. Measurements of the shine-through beam power as a function of plasma density and beam energy confirm that shine-through power decreases exponentially with plasma density, and increases linearly with beam energy.

Riggs, S.; Hong, R.; Kessler, D.

1995-10-01T23:59:59.000Z

263

High-Voltage Direct Current Line Conductor Optimization  

Science Conference Proceedings (OSTI)

Overhead transmission lines are designed to last for 40 years. Many ac lines in service today in North America are 70 or more years old. This survival rate is a result of conservative utility design practices and detailed product specifications. This reliability record has occurred despite a wide range of conductor types and sizes. In the present transmission system, there are far fewer high-voltage direct current (HVDC) lines, but those that have been designed and built have been similarly successful in...

2011-12-21T23:59:59.000Z

264

OEET 141.Electrical Lineworker II 5 cr. (10P) Practice in the installation of electrical power lines including transform-  

E-Print Network (OSTI)

Electric Code Fuel Cell Systems (Published) NFPA 110 Standby Power Systems (Published) NFPA Codes Fuel) NFPA 70 Article 692 National Electric Code Fuel Cell Systems (Published) NFPA 110 Standby Power Systems by 2007. Support and facilitate the effort, led by the National Fire Protection Association (NFPA

Castillo, Steven P.

265

Performance Evaluation for Modular, Scalable Overhead Cooling Systems In Data Centers  

Science Conference Proceedings (OSTI)

Scientific and enterprise data centers, IT equipment product development, and research data center laboratories typically require continuous cooling to control inlet air temperatures within recommended operating levels for the IT equipment. The consolidation and higher density aggregation of slim computing, storage and networking hardware has resulted in higher power density than what the raised-floor system design, coupled with commonly used computer rack air conditioning (CRAC) units, was originally conceived to handle. Many existing data centers and newly constructed data centers adopt CRAC units, which inherently handle heat transfer within data centers via air as the heat transfer media. This results in energy performance of the ventilation and cooling systems being less than optimal. Understanding the current trends toward higher power density in IT computing, more and more IT equipment manufacturers are designing their equipment to operate in 'conventional' data center environments, while considering provisions of alternative cooling solutions to either their equipment or supplemental cooling in rack or row systems. Naturally, the trend toward higher power density resulting from current and future generations of servers has, in the meanwhile, created significant opportunities for precision cooling suppliers to engineer and manufacture packaged modular and scalable systems. The modular and scalable cooling systems aim at significantly improving efficiency while addressing the thermal challenges, improving reliability, and allowing for future needs and growth. Such pre-engineered and manufactured systems may be a significant improvement over current design; however, without an energy efficiency focus, their applications could also lead to even lower energy efficiencies in the overall data center infrastructure. The overall goal of the project supported by California Energy Commission was to characterize four commercially available, modular cooling systems installed in a data center. Such modular cooling systems are all scalable localized units, and will be evaluated in terms of their operating energy efficiency in a real data center, respectively, as compared to the energy efficiency of traditional legacy data center cooling systems. The technical objective of this project was to evaluate the energy performance of one of the four commercially available modular cooling systems installed in a data center in Sun Microsystems, Inc. This report is the result of a test plan that was developed with the industrial participants' input, including specific design and operating characteristics of the selected modular localized cooling solution provided by vendor 1. The technical evaluation included monitoring and measurement of selected parameters, and establishing and calculating energy efficiency metrics for the selected cooling product, which is a modular, scalable overhead cooling system. The system was tested in a hot/cold aisle environment without separation, or containment or the hot or cold aisles. The scope of this report is to quantify energy performance of the modular cooling unit in operation as it corresponds to a combination of varied server loads and inlet air temperatures. The information generated from this testing when combined with a concurrent research study to document the energy efficiency of the host data center's central chilled water cooling plant can be used to estimate potential energy savings from implementing modular cooling compared to conventional cooling in data centers.

Xu, TengFang T.

2009-05-01T23:59:59.000Z

266

Effects of Downscattering on the Continuum and Line Spectra in Powerful Wind Environment. Monte Carlo Simulations, Analytical Results and Data Analysis  

E-Print Network (OSTI)

In Paper by Titarchuk & Shrader the general formulation and results for photon reprocessing (downscattering) that included recoil and Comptonization effects due to divergence of the flow were presented. Here we show the Monte Carlo (MC) simulated continuum and line spectra. We also provide an analytical description of the simulated continuum spectra using the diffusion approximation. We have simulated the propagation of monochromatic and continuum photons in a bulk outflow from a compact object. Electron scattering of the photons within the expanding flow leads to a decrease of their energy which is of first order in V/c (where V is the outflow velocity). The downscattering effect of first order in V/c in the diverging flow is explained by semi-analytical calculations and confirmed by MC simulations. We conclude that redshifted lines and downscattering bumps are intrinsic properties of the powerful outflows for which Thomson optical depth is greater than one. We fitted our model line profiles to the observations using four free parameters, \\beta=V/c, optical depth of the wind \\tau, the wind temperature kT_e and the original line photon energy E_0. We show how the primary spectrum emitted close to the black hole is modified by reprocessing in the warm wind. In the framework of the our wind model the fluorescent iron line K_alpha is formed in the partly ionized wind as a result of illumination by central source continuum photons. The demonstrated application of our outflow model to the XMM observations of MCG 6-30-15, and to the ASCA observations of GRO J1655-40, points out a potential powerful spectral diagnostic for probes of the outflow-central object connection in Galactic and extragalactic BH sources.

Philippe Laurent; Lev Titarchuk

2006-11-06T23:59:59.000Z

267

Development of a hybrid intelligent system for on-line real-time monitoring of nuclear power plant operations  

E-Print Network (OSTI)

A nuclear power plant (NPP) has an intricate operational domain involving systems, structures and components (SSCs) that vary in scale and complexity. Many of the large scale SSCs contribute to the lost availability in the ...

Yildiz, Bilge, 1976-

2003-01-01T23:59:59.000Z

268

EPRI Transmission Line Reference Book (Blue Book): 115-345 kV Compact Line Design  

Science Conference Proceedings (OSTI)

This report is an updated edition of the industry standard on overhead line compaction, the EPRI Transmission Line Reference Book: 115-138 kV Compact Line Design, commonly known as the Blue Book, which was last published in 1978. Publication of this new edition is the culmination of three years of research by a team of experts in the field. The report includes the latest information on research, technology, materials, and utility experience with compact lines. Note that this electronic report is being pu...

2007-12-13T23:59:59.000Z

269

Power Line Fault Current Coupling to Nearby Natural Gas Pipelines, Volume 3: Analysis of Pipeline Coating Impedance  

Science Conference Proceedings (OSTI)

As regulatory agencies encourage construction of transmission lines and gas pipelines along shared utility corridors, the likelihood of voltage and current coupling increases. Development of equations that determine the electrical characteristics of pipeline coatings will help utility engineers to accurately predict induced voltages and currents.

1988-08-01T23:59:59.000Z

270

Soil and Crop Response to Power Line Construction Traffic and Shallow and Deep Tillage in New York State  

Science Conference Proceedings (OSTI)

A large percentage of New York State is agricultural land. In many instances, electric transmission lines must be constructed on or across agricultural lands to provide electric service. This study was commissioned by member utilities of the Empire State Electric Energy Research Corporation (ESEERCO) to determine the effect of electric transmission construction traffic on agricultural lands and crops.

1999-09-18T23:59:59.000Z

271

Design of a laser-induced breakdown spectroscopy system for on-line quality analysis of pulverized coal in power plants  

SciTech Connect

It is vitally important for a power plant to determine the chemical composition of coal prior to combustion in order to obtain optimal boiler control. In this work, a fully software-controlled laser-induced breakdown spectroscopy (LIBS) system comprising a LIBS apparatus and sampling equipment has been designed for possible application to power plants for on-line quality analysis of pulverized coal. Special attention was given to the LIBS system, the data processing methods (especially the normalization with Bode Rule/DC Level) and the specific settings (the software-controlled triggering source, high-pressure gas cleaning device, sample preparation module, sampling module, etc.), which gave the best direct measurement for C, H, Si, Na, Mg, Fe, Al, and Ti with measurement errors less than 10% for pulverized coal. Therefore, the apparatus is accurate enough to be applied to industries for on-line monitoring of pulverized coal. The method of proximate analysis was also introduced and the experimental error of A(ad) (Ash, 'ad' is an abbreviation for 'air dried') was shown in the range of 2.29 to 13.47%. The programmable logic controller (PLC) controlled on-line coal sampling equipment, which is designed based upon aerodynamics, and is capable of performing multipoint sampling and sample-preparation operation.

Yin, W.B.; Zhang, L.; Dong, L.; Ma, W.G.; Jia, S.T. [Shanxi Agricultural University, Taiyuan (China)

2009-08-15T23:59:59.000Z

272

Managing Transmission Line Steel Structures, Version 2  

Science Conference Proceedings (OSTI)

Utilities are under more pressure than ever to efficiently utilize existing overhead lines by optimizing their life and reliability. A key issue involves the question of how to efficiently inspect and maintain transmission systems. In light of aging transmission and distribution infrastructures, resources are needed to design and implement cost-effective assessment and maintenance programs. This valuable reference provides an in-depth look at all facets of an inspection, assessment, and maintenance progr...

2004-12-02T23:59:59.000Z

273

Beam-line cryopump  

DOE Green Energy (OSTI)

A cryopumping module using metallic surfaces at liquid helium temperature for condensation of hydrogen and deuterium gas has been constructed. This pump, a prototype of four units which will provide pumping for the Livermore 200 kV test stand, will be used to verify the concept and establish engineering parameters. Upon completion of engineering tests and evaluation the pump will be installed in an operating beam line. The design point pumping capacity is 80,000 liters per second for hydrogen and deuterium at 10$sup -4$ torr based on sticking coefficients of 0.15 and 0.25, respectively. Both the liquid helium temperature pumping surface and the liquid nitrogen temperature radiation shields are constructed of quilted double wall cylindrical shells. The pumping shell dimensions are 1.5 meters dia. x 0.6 meters long. Cryogen circulation is convection current driven in both cases. Liquid helium is supplied from an overhead Dewar through bayonet coupling. In the 200 kV beam line, pumping modules will be supplied via transfer lines from a central Dewar. Voltage standoff will be accomplished in the transfer lines. (auth)

Duffy, T.J.; Oddon, L.D.

1975-11-12T23:59:59.000Z

274

Western Area Power Administration, Desert Southwest Region Parker-Gila 161-kV Transmission Line Maintenance, Cross Arm  

NLE Websites -- All DOE Office Websites (Extended Search)

Parker-Gila 161-kV Transmission Line Maintenance, Cross Arm Parker-Gila 161-kV Transmission Line Maintenance, Cross Arm Replacements at Structure 0/7 - Continuation Sheet Special Conditions Biological Resources 1. To avoid impacts to nesting birds, project activities will be scheduled between August 1 and February 15, as feasible. Crews shall not cause injury or death to nesting birds, active nests, eggs, or nestlings. If evidence of a nesting bird is found in the project area, crews shall immediately stop work in that area until Western's Environmental Group has been contacted. 2. A qualified biologist will be present during all project activities and serve as the project's Biological Monitor. The Biological Monitor will be authorized by Western to temporarily halt construction activity if needed to prevent harm to desert tortoise. The Biological Monitor's

275

Spectrum analysis of the power line flicker induced by the electrical test of the prototype Booster dipole  

Science Conference Proceedings (OSTI)

Testing of the prototype Booster dipole magnet at full current produced measurable disturbances of the beam position at the National Synchrotron Light Source. Power for the magnet and the NSLS are distributed from three substation transformers at Temple Place. Normally the substation configuration is for two independent 13.8 KV buses, derived from the 69 KV LILCO distribution. The buses are connected through a circuit breaker that is normally open circuited. Power for the magnet test is derived from one of the 13.8 KV buses and power for the NSLS is derived from the second bus. Coupling of the pulsating magnet load and the NSLS is at the 69 KV level. However, on the days that the interference was first observed at the NSLS only one-half of the substation transformers at Temple Place were in service. The 13.8 KV tie breaker was closed and the full substation load was supplied from this common bus. Thus the coupling between the pulsating magnet load and the NSLS was at the 13.8 KV level. Establishing the normal two bus configurations at Temple Place appeared to reduce the disturbance. These events suggested a controlled experiment to measure the magnet power swing and the induced powerline flicker; and from these measurements project the flicker on the lab site generated by the Booster operating at full energy. This experiment could corroborate the validity of the electrical models used in analyzing the power flow from the LILCO power grid and its distribution on the Lab site described in Accelerator Division Technical Note 220.

Meth, M.

1992-07-17T23:59:59.000Z

276

Utility Lines and Facilities (Montana)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations apply to the construction of utility and power lines and facilities. They address the use of public right-of-ways for such construction, underground power lines, and construction...

277

LPAT: An interactive simulation tool for assessing the lightning performance of Hellenic high voltage transmission lines  

Science Conference Proceedings (OSTI)

The paper presents the Lightning Performance Assessment Tool (LPAT), an interactive simulation tool which assesses the lightning performance of high voltage transmission lines. The LPAT design was based on a recently published methodology that has been ... Keywords: Lightning performance, Optical transient density, Overhead transmission lines, Simulation, Software tool, User interface

P. Karampelas; L. Ekonomou; S. Panetsos; G. E. Chatzarakis

2011-01-01T23:59:59.000Z

278

Recent progress on system studies for long distance power transmission  

SciTech Connect

Two possible applications of helium-cooled underground cables for power transmission were studied to determine network characteristics and estimated costs. The first involved power transmission at 345 kV from a Long Island nuclear power plant to a substation 43 miles away. The second appication examined the feasibility of a 350 mi-long 550 kV transmission line from Western Pennsylvania to Allentown and Philadelphia. For both systems computer simulations were used to study operating characteristics. A detailed cost analysis was made. The Long Island study concluded that helium-cooled cables were well suited for high-power transmission in a suburban area, that such a system using two trenches and separate refrigerator stations would be more reliable than a single trench system, and that cost could be optimized by using a less expensive cryogenic envelope. The Pennsylvania study showed that the helium-cooled cable was technically capable of performing as well as overhead power lines, but the cost of the underground cryogenic system is so much greater that such a system could not be economically justified for long distance transmission across open country-side. (LCL)

Forsyth, E B

1976-01-01T23:59:59.000Z

279

Strategy for Updating EPRI's Transmission Line Reference Book: 115-138-kV Compact Line Design ("The Blue Book")  

Science Conference Proceedings (OSTI)

EPRI is sponsoring development of a new, updated edition of the Transmission Line Reference Book: 115-138 kV Compact Line Design, commonly known as the "Blue Book," which was originally published in 1978. The new edition will provide the most up-to-date technical information and practices on the design and maintenance of compact overhead lines. It will enable energy companies to construct cost-effective compact lines that produce optimal performances and to address the ability to maintain compact lines w...

2006-10-30T23:59:59.000Z

280

Mutual Design Considerations for Overhead AC Transmission Lines and Gas Transmission Pipelines, Volume 2: Prediction and Mitigation Procedures  

Science Conference Proceedings (OSTI)

Presents concise information on the prediction and mitigation of voltages and currents that were electromagnetically induced in pipelines.

1978-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Means and method for characterizing high power, ultra short laser pulses in a real time, on line manner  

DOE Patents (OSTI)

An ultra short (<10 ps), high power laser pulse is temporally characterized by a system that uses a physical measurement of a wavefront that has been altered in a known manner. The system includes a first reflection switch to remove a portion of a pulse from a beam of pulses, then includes a second reflection switch, operating in a mode that is opposite to the first reflection switch, to slice off a portion of that removed portion. The sliced portion is then directed to a measuring device for physical measurement. The two reflection switches are arranged with respect to each other and with respect to the beam of ultra short pulses such that physical measurement of the sliced portion is related to the temporal measurement of the ultra short pulse by a geometric or trigonometric relationship. The reflection switches are operated by a control pulse that is directed to impinge on each of the reflection switches at a 90.degree. angle of incidence.

Veligdan, James T. (Manorville, NY)

1994-01-01T23:59:59.000Z

282

Means and method for characterizing high power, ultra short laser pulses in a real time, on line manner  

DOE Patents (OSTI)

An ultra short (<10 ps), high power laser pulse is temporally characterized by a system that uses a physical measurement of a wavefront that has been altered in a known manner. The system includes a first reflection switch to remove a portion of a pulse from a beam of pulses, then includes a second reflection switch, operating in a mode that is opposite to the first reflection switch, to slice off a portion of that removed portion. The sliced portion is then directed to a measuring device for physical measurement. The two reflection switches are arranged with respect to each other and with respect to the beam of ultra short pulses such that physical measurement of the sliced portion is related to the temporal measurement of the ultra short pulse by a geometric or trigonometric relationship. The reflection switches are operated by a control pulse that is directed to impinge on each of the reflection switches at a 90[degree] angle of incidence. 8 figures.

Veligdan, J.T.

1994-03-08T23:59:59.000Z

283

Environmental Assessment for Central Power and Light Company`s proposed Military Highway-CFE tie 138/69-kV transmission line project Brownsville, Cameron County, Texas  

SciTech Connect

Central Power and Light Company (CPL) intends to upgrade its existing transmission line ties with the Commision Federal de Electricidad (CFE) system in Mexico. CPL currently has a single 69-kilovolt (kV) transmission line in the Brownsville area which connects CPL`s system with the system of CFE. This existing line runs between the Brownsville Switching Station, located on Laredo Road in Brownsville, Cameron County, Texas, and an existing CFE 69-kV line at the Rusteberg Bend of the Rio Grande in Cameron County. Under current conditions of need, the existing 69-kV line does not possess sufficient capability to engage in appropriate power exchanges. Therefore, CPL is proposing to build a new line to link up with CFE. This proposed line would be a double-circuit line, which would (1) continue (on a slightly relocated route) the existing 69-kV tie from CPL`s Brownsville Switching Station to CFE`s facilities, and (2) add a 138-kV tie from the Military Highway Substation, located on Military Highway (US Highway 281), to CFE`s facilities. The proposed 138/69-kV line, which will be constructed and operated by CPL, will be built primarily on steel single-pole structures within an average 60-foot (ft) wide right-of-way (ROW). It will be approximately 6900--9200 ft (1.3--1.7 miles) in length, depending on the alternative route constructed.

1992-04-01T23:59:59.000Z

284

Environmental Assessment for Electrical Power System Upgrades at Los Alamos National Laboratory, Los Alamos, New Mexico - Final Document  

Science Conference Proceedings (OSTI)

The ''National Environmental Policy Act of 1969'' (NEPA) requires Federal agency officials to consider the environmental consequences of their proposed actions before decisions are made. In complying with NEPA, the United States (U.S.) Department of Energy (DOE) follows the Council on Environmental Quality (CEQ) regulations (40 Code of Federal Regulations [CFR] 1500-1508) and DOE's NEPA implementing procedures (10 CFR 1021). The purpose of an Environmental Assessment (EA) is to provide Federal decision makers with sufficient evidence and analysis to determine whether to prepare an Environmental Impact Statement (EIS) or issue a Finding of No Significant Impact. In this case, the DOE decision to be made is whether to construct and operate a 19.5-mile (mi) (31-kilometer [km]) electric transmission line (power line) reaching from the Norton Substation, west across the Rio Grande, to locations within the Los Alamos National Laboratory (LANL) Technical Areas (TAs) 3 and 5 at Los Alamos, New Mexico. The construction of one electric substation at LANL would be included in the project as would the construction of two line segments less than 1,200 feet (ft) (366 meters [m]) long that would allow for the uncrossing of a portion of two existing power lines. Additionally, a fiber optics communications line would be included and installed concurrently as part of the required overhead ground conductor for the power line. The new power line would improve the reliability of electric service in the LANL and Los Aktrnos County areas as would the uncrossing of the crossed segments of the existing lines. Additionally, installation of the new power line would enable the LANL and the Los Alamos County electric grid, which is a shared resource, to be adapted to accommodate the future import of increased power when additional power service becomes available in the northern New Mexico area. Similarly, the fiber optics line would allow DOE to take advantage of future opportunities in enhanced communications services. The objectives of this EA are to (1) describe the baseline environmental conditions at the proposed power line location, (2) analyze the potential effects to the existing environment from construction, operation, and maintenance of a new power line, and (3) compare the effects of the Proposed Action and the four action alternatives to the No Action Alternative. In addition, the EA provides DOE with environmental information that could be used in developing mitigative actions to minimize or avoid adverse effects to the integrity of the human environment and natural ecosystems should DOE decide to proceed with construction and operation of the new power line. Ultimately, the goal of NEPA and this EA is to aid DOE officials in making decisions based on understanding the environmental consequences of their decision.

N /A

2000-03-09T23:59:59.000Z

285

Performance Evaluation for Modular, Scalable Overhead Cooling Systems In Data Centers  

E-Print Network (OSTI)

Power Transformer Power Strip Current Figure 1. EquipmentCurrent Transformer Power Transformer Cold Aisle Fan unit (Power Meter Fan Total Relative Humidity Diff. Pressure Flow Rate Current Transformer

Xu, TengFang T.

2009-01-01T23:59:59.000Z

286

Wind Power  

NLE Websites -- All DOE Office Websites (Extended Search)

Power As the accompanying map of New Mexico shows, the best wind power generation potential near WIPP is along the Delaware Mountain ridge line of the southern Guadalupe Mountains,...

287

Coupled Lines/Multiport Measurement/Orthogonal Calibration  

Science Conference Proceedings (OSTI)

... understanding of lossy multiconductor transmission lines and modal cross powers. These theoretical developments in coupled line theory have led ...

2012-05-25T23:59:59.000Z

288

EGGS (Guide for Transmission Line Grounding: A Roadmap for Design Testing and Remediation), Version 2.1  

Science Conference Proceedings (OSTI)

The EPRI Grounding Guide Software (EGGS), Version 2.1, is calculation/modeling software for transmission line grounding. EGGS Version 2.1, is a set of applets to assist technical staff in the design and implementation of effective grounding of transmission lines and is intended for users who need simple methods to evaluate new or existing transmission line grounding electrode designs. When ordering EGGS 2.1, included will be product 1018973, EPRIs Overhead Transmission Line Lightning and Grounding Refere...

2008-12-22T23:59:59.000Z

289

Ground potential rise characteristics of urban step-down substations fed by power cables - A practical example  

Science Conference Proceedings (OSTI)

This paper shows some special ground potential rise characteristics of substations fed by power cables. These characteristics were detected during the study of the interconnected ground system of 14 step-down urban substations fed by the 138 kV underground cable network serving the South Zone of Rio de Janeiro city in Brazil. As this type of system is very common in large cities, the subject can be of general interest for the industry. It was verified that when a fault occurs at a ''cable substation'' (a substation fed exclusively by power cables), almost no ground potential effects were detected at the faulted substation or at the other ''cable substations'' of the 138 kV network. However, high values of ground potential occurred at the ''transition substations'' (substations in which the power cables are connected to overhead 138 kV transmission lines, with steel groundwires). That ground potential was enough to produce shocks and equipment damage in certain ''transition substations''. It was verified that this problem has no relation with potential transfer. The paper shows also that the utilization of overhead lines with ACSR groundwires on the initial spans closer to the ''transition substation'' would be enough to avoid the problem. Even if the ACSR conductor is used only at the initial section of one of the lines, a reduction of the problem would be obtained. The paper shows also that the utilization of ACSR ground-wires near the ''transition substations'' contributes to reduce the amount of the copper necessary to control step, touch and mess potentials in these substations. Additional mitigation procedures are also examined in the paper.

Sobral, S.T. (IESA - Internacional de Engenharia S.A. (BR)); Barbosa, J.O.; Numes, J.V.C.; Chinelli, E.; Netto, A.F. (Light - Servicos de Eletricidade S.A. (BR)); Costa, V.S.; Campos, J.H. (Eletrobras - Centrais Eletricas, Brasileiras (BR))

1988-10-01T23:59:59.000Z

290

Optimization of Transmission Line Design Using Life Cycle Costing  

Science Conference Proceedings (OSTI)

When an overhead line is designed, all costs incurred during the expected life of the line should be considered. The total cost during the life or life-cycle cost of a transmission line is a combination of the initial capital cost, operation and maintenance (O&M) cost, cost of electrical losses over its entire life, and dependability associated costs. The option that has the lowest life-cycle cost is selected as the optimized design. A tool is required by utility engineers to help them readily select an ...

2009-12-22T23:59:59.000Z

291

Optimization of Transmission Line Design Using Life-Cycle Costing  

Science Conference Proceedings (OSTI)

When an overhead line is designed, all costs incurred during the expected life of the line should be considered. The total cost during the life, or life-cycle cost, of a transmission line is a combination of the initial capital cost, operation and maintenance (O&M) cost, cost of electrical losses over its entire life, and dependability-associated costs. The option that has the lowest life-cycle cost is selected as the optimized design. A tool is required by utility engineers to help them readily select a...

2008-12-09T23:59:59.000Z

292

Performance Evaluation for Modular, Scalable Overhead Cooling Systems In Data Centers  

E-Print Network (OSTI)

provisions of alternative cooling solutions to either theiralternative metric, defined as the module’s power index, PI, is the ratio of power demand for the cooling

Xu, TengFang T.

2009-01-01T23:59:59.000Z

293

Ga-based passive loop optimization for magnetic field mitigation of transmission lines  

Science Conference Proceedings (OSTI)

This paper presents a systematic method to assist in the design of passive loops with the aim of mitigating the magnetic field generated by overhead transmission lines. The procedure is based on a two-dimensional (2D) modeling of the magnetic field, ... Keywords: Compensated loop, Genetic algorithm, Magnetic field, Mitigation, Passive loop, Reduction factor

Pedro Cruz; Jesús M. Riquelme; Antonio de la Villa; José L. Martínez

2007-10-01T23:59:59.000Z

294

Effectiveness of PowerPoint presentations in lectures  

Science Conference Proceedings (OSTI)

We investigated whether students liked and learned more from PowerPoint presentations than from overhead transparencies. Students were exposed to lectures supported by transparencies and two different types of PowerPoint presentations. At the end of ... Keywords: improving classroom teaching, pedagogical issues, teaching/learning strategies

Robert A. Bartsch; Kristi M. Cobern

2003-06-01T23:59:59.000Z

295

Proposed amendment for Presidential Permit PP-63 and associated modifications to 500 kV international transmission line, Forbes, Minnesota to Manitoba, Canada Northern States Power Company. Final Environmental Assessment  

SciTech Connect

Northern States Power Company, (NSP), a Minnesota investor owned utility has applied to the Office of Fossil Energy, United States Department of Energy, to amend Presidential Permit PP-63 to allow for alterations to the 500 kV transmission line and as sedated facilities currently regulated by this permit. The alterations proposed for the 500 kV line owned by NSP are part of a long term effort sponsored by NSP to upgrade the existing NSP transmission system to allow for increased exchange of electricity with the Manitoba Hydro-Electric Board. Presidential Permit PP-63 authorized NSP to construct, connect, operate and maintain a 500 kV line at the United States/Canadian border approximately seven-and-a-half miles west of Warroad in Roseau County, Minnesota. This line connects with a 500 kV line owned and operated by the Manitoba Hydro-Electric Board (MHEB), which extends from Dorsey, Manitoba, Canada to the United States/Canadian border. NSP proposes to increase the electricity transfer capability of this transmission facility by constructing a new 80-acre substation on the existing 500 kV line in Roseau County, Minnesota, and upgrading the existing substation at Forbes, Minnesota. The proposed Roseau substation would contain two 41.5 ohm series capacitor banks. In addition, static VAR compensators are to be installed at the existing Forbes Substation. Approximately 5 acres would be added to the 30-acre Forbes site to house the additional equipment. No new lines would enter or exit the facility. NSP proposes to place the new Roseau Substation in service in May 1993 and to complete the upgrading of the Forbes Substation in March 1994. The primary, initial purpose of these modifications is to enable NSP to import 400 megawatts of electric power from MHEB during the summer months to meet peak electrical demand in the Minneapolis-St. Paul area. It is expected that this power transfer would begin in 1993.

Not Available

1992-02-01T23:59:59.000Z

296

Proposed Project: Plains & Eastern Clean Line | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Section 1222 of the Energy Policy Act 2005 » Proposed Project: Plains & Section 1222 of the Energy Policy Act 2005 » Proposed Project: Plains & Eastern Clean Line Proposed Project: Plains & Eastern Clean Line On June 10, 2010, the Department of Energy published in the Federal Register a Request for Proposals (RFP) for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act (EPAct) of 2005. In response, Clean Line Energy Partners, LLC submitted an application for its Plains & Eastern Clean Line project. DOE has concluded that Clean Line's proposal was responsive to the RFP, and it is currently under consideration. The proposed Plains & Eastern Clean Line project (the proposed project) would include an overhead +/- 600 kV direct current electric transmission system and associated facilities with the capacity to deliver approximately

297

Help Line  

NLE Websites -- All DOE Office Websites (Extended Search)

Help Line Help Line Ombuds Help Line Committed to the fair and equitable treatment of all employees, contractors, and persons doing business with the Laboratory. Contact Ombuds Office (505)665-2837 Email Help Line (505) 667-9370 Fax (505) 667-3119 Map & Hours Help Line: (505) 667-9370 As an option to visiting the Ombuds office, we provide service through a telephone Help Line and email. The telephone Help Line is useful for individuals who have concerns and want advice or referral while preserving confidentiality and anonymity. Callers may remain anonymous and the Help Line does not have caller ID or other methods of identifying callers. The Help Line maintains the same level of confidentiality and neutrality as the other Ombuds services. The Ombuds Help Line is not for reporting emergencies or officially

298

Notice of Intent to Prepare an Environmental Impact Statement for the proposed Griffith Power Plant and Transmission Line Project, Mojave County, AZ  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

96 96 Federal Register / Vol. 63, No. 64 / Friday, April 3, 1998 / Notices Metered Entities the ISO and Alta Power Generation, L.L.C., for acceptance by the Commission. The ISO states that this filing has been served on all parties listed on the official service list in Docket Nos. EC96- 19-003 and ER96-1663-003, including the California Public Service Commission. Comment date: April 9, 1998, in accordance with Standard Paragraph E at the end of this notice. 16. Allegheny Power Service Corp., on Behalf of Monongahela Power The Potomac Edison Company, and West Penn Power Company (Allegheny Power) [Docket No. ER98-2307-000] Take notice that on March 24, 1998, Allegheny Power Service Corporation on behalf of Monongahela Power Company, The Potomac Edison Company and West Penn Power

299

Machine learning methods for the estimation of weather and animal-related power outages on overhead distribution feeders.  

E-Print Network (OSTI)

??Because a majority of day-to-day activities rely on electricity, it plays an important role in daily life. In this digital world, most of the people’s… (more)

Kankanala, Padmavathy

2013-01-01T23:59:59.000Z

300

Power Saving Design for Servers under Response Time Constraint Shengquan Wang  

E-Print Network (OSTI)

also observe that PowerSleep might not always be a good choice due to the mode transition overhead whenNap scheme was proposed to handle the dominant idle time by quickly transitioning in and out of a low power in the sleep power mode for extra time to aggregate more jobs to reduce the mode transition frequency. We

Wang, Shengquan

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Barely Alive Memory Servers: Keeping Data Active in a Low-Power State  

E-Print Network (OSTI)

is not operational. PowerNap requires server software to avoid unwanted transitions to active state (e.g., due low power states with different levels of energy savings; (2) transition overheads are not significant others can be transitioned to a low-power state (barely-alive, Somniloquy, or off state). The behavior

Bianchini, Ricardo

302

Power Consumption Reduction Explorations in Processors by Enhancing Performance Using Small ESL Reprogrammable eFPGAs  

Science Conference Proceedings (OSTI)

Power consumption has become the biggest challenge in industry for chip design. We will present that by using small reprogrammable embedded FPGAs (eFPGA) coupled with a processor we can achieve power and energy reduction with a very small silicon overhead. ... Keywords: embedded FPGA, Power Consumption, Reconfigurable computing, MIPS, eFPGA accelerator

Syed Zahid Ahmed; Julien Eydoux; Michael Fernandez; Laurent Rougé; Gilles Sassatelli; Lionel Torres

2008-12-01T23:59:59.000Z

303

Transmission Line Grounding  

Science Conference Proceedings (OSTI)

In 2008, the Electric Power Research Institute (EPRI) published a comprehensive grounding report. Published in two parts, the report covered the theoretical and practical aspects of transmission line grounding practices. To further improve the tools available for grounding analysis, an investigation into practical ways to calculate the fault current distribution and ground potential rise of the transmission line grounding system was conducted. Furthermore, a survey of utilities has documented industry pr...

2011-12-23T23:59:59.000Z

304

EIS-0486: Plains & Eastern Clean Line Transmission Project  

Energy.gov (U.S. Department of Energy (DOE))

This EIS will evaluate the potential environmental impacts of participating with Clean Line Energy Partners LLC (Clean Line) in the proposed Plains & Eastern Project. The proposed project would include an overhead ± 600 kilovolt (kV) high voltage direct current (HVDC) electric transmission system and associated facilities with the capacity to deliver approximately 3,500 megawatts (MW) primarily from renewable energy generation facilities in the Oklahoma Panhandle region to load-serving entities in the Mid-South and Southeast via an interconnection with the Tennessee Valley Authority (TVA).

305

High Voltage Direct Current Live Line and Insulator Testing  

Science Conference Proceedings (OSTI)

This report has two main parts. The focus of the first part is on live work in overhead high-voltage direct current (HVDC) lines operating above 100 kV dc. It does not address issues related to lines for electric transport that typically operate below 60 kV dc worldwide. In addition, this first part of the report is not a detailed treatise on live work but, rather, addresses the main issues related to dc live work. More detailed information on the general topic of live work can be found in the references...

2011-12-23T23:59:59.000Z

306

CX-009210: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bonneville Power Administration proposes to bury an approximately 1-mile-long overhead fiber optic line (fiber) segment located along the Noxon-Libby transmission line....

307

A Case Study on the Effects of Distribution Line Capacitors on Substation Bus Voltage Regulated with a Load Tap Changing (LTC) Power Transformer: Southern Company Smart Grid Demonstration  

Science Conference Proceedings (OSTI)

This case study describes research to address the adverse effects of distribution capacitors on substation bus voltage with a load-tap-changing (LTC) power transformer. By adding fixed and switched capacitors to the distribution system, Southern Company is able to maintain an efficient distribution grid by providing the reactive power near the end-use devices consuming this power. However, pressure to improve the efficiency of the distribution system has resulted in Southern Company adding a large ...

2013-12-12T23:59:59.000Z

308

Nonlinear magnetoinductive transmission lines  

E-Print Network (OSTI)

Power transmission in one-dimensional nonlinear magnetic metamaterials driven at one end is investigated numerically and analytically in a wide frequency range. The nonlinear magnetic metamaterials are composed of varactor-loaded split-ring resonators which are coupled magnetically through their mutual inductances, forming thus a magnetoiductive transmission line. In the linear limit, significant power transmission along the array only appears for frequencies inside the linear magnetoinductive wave band. We present analytical, closed form solutions for the magnetoinductive waves transmitting the power in this regime, and their discrete frequency dispersion. When nonlinearity is important, more frequency bands with significant power transmission along the array may appear. In the equivalent circuit picture, the nonlinear magnetoiductive transmission line driven at one end by a relatively weak electromotive force, can be modeled by coupled resistive-inductive-capacitive (RLC) circuits with voltage-dependent cap...

Lazarides, Nikos; Tsironis, G P

2011-01-01T23:59:59.000Z

309

2000 TMS Annual Meeting Exhibitor: Jervis B. Webb  

Science Conference Proceedings (OSTI)

Overhead power and free conveyors will transport the rodded anodes to the ... In the smelting plant, our full line of power and free conveyors and integrated ...

310

Fiber Optic Cables in Overhead Transmission Corridors: A State-of-the-Art Review  

Science Conference Proceedings (OSTI)

Many electric utilities are installing high capacity fiber optic cables and wires on their high voltage lines to satisfy their own internal communication needs and to gain additional revenues by leasing excess capacity to telecommunication network providers. This report presents a review and evaluation of the state-of-the-art in using fiber optic technology in high voltage corridors.

1997-11-26T23:59:59.000Z

311

An Examination of Temporal Trends in Electricity Reliability Based on Reports from U.S. Electric Utilities  

E-Print Network (OSTI)

and distribution lines are overhead versus underground), andand distribution lines are overhead versus underground), and

Eto, Joseph H.

2013-01-01T23:59:59.000Z

312

Evaluation of Heat Stress and Strain in Electric Utility Workers  

E-Print Network (OSTI)

inside vaults or on overhead lines. Their typical activitiestogether or to overhead transmission lines. Installing watt-

Brown, Eric Nicholas

2013-01-01T23:59:59.000Z

313

Inkjet printing and low power laser annealing of silver nanoparticle traces for the realization of low resistivity lines for flexible electronics  

Science Conference Proceedings (OSTI)

We report on the realization of low resistance silver lines by inkjet printing of a commercial silver-based ink on a flexible kapton substrate and subsequent low energy laser annealing to promote nanoparticle coalescence. Our approach resulted in low ... Keywords: Flexible electronics, Inkjet printing, Laser annealing, Thin films

A. Chiolerio; G. Maccioni; P. Martino; M. Cotto; P. Pandolfi; P. Rivolo; S. Ferrero; L. Scaltrito

2011-08-01T23:59:59.000Z

314

Introduction  

Science Conference Proceedings (OSTI)

...structures High-power search radar aerials Overhead walkways Railroad overhead line support columns Electrification masts Tower cranes Traffic island posts Street and bridge railings On a smaller scale, aluminum-zinc TSCs have been successfully used

315

The EP-4(0) shielding kits: a new approach to protection from induced voltage  

Science Conference Proceedings (OSTI)

Problems of safety in work on overhead power lines and the overhead railroad ac contact network under induced voltages are considered. The use of additional individual protection systems is proposed to provide protection from electric shock during such work.

Vorob'ev, A. Yu.; Otmorskii, S. G.; Smekalov, V. V.; Gorozhankina, E. N.; Sosunov, N. N.; Bol'shunov, A. M.

2011-09-15T23:59:59.000Z

316

Proposed Amendment to Presidential Permit PP-63 and Associated Modifications to 500-kV International Transmission Line: Forbes, Minnesota to Manitoba, Canada, Northern States Power Company. Addendum to the final Environmental Assessment  

SciTech Connect

This Addendum to the Final Environmental Assessment for the Proposed Amendment to Presidential Permit PP-63 and Associated Modifications to 500 kV International Transmission Line: Forbes, Minnesota to Manitoba, Canada (DOE/EA-587) addresses Northern States Power Company`s (NSP) proposed expansion of the Forbes Substation. The applicant has requested that the expansion take place on the west side of the substation, within the existing property line, instead of on the north side as originally proposed. All of the proposed construction would take place on property already owned by NSP. DOE has reviewed the environmental impacts associated with this minor modification and has determined that the conclusions reached in the environmental assessment and Finding of No Significant Impact prepared in connection with NSP`s original amendment request remain valid.

Not Available

1992-10-01T23:59:59.000Z

317

DRPM: Dynamic Speed Control for Power Management in Server Class Disks Sudhanva Gurumurthi  

E-Print Network (OSTI)

[5] that power densities of data centers could grow to over 100 Watts per square foot and that the ca between disk requests may not be long enough to outweigh the overheads. This pa- per presents a new interest because of the cost of power delivery, cost of cooling the system components, and the impact

Sivasubramaniam, Anand

318

Hiding Checkpoint Overhead in HPC Applications with a Semi-Blocking Algorithm  

Science Conference Proceedings (OSTI)

The HPC community has seen a steady increase in the number of components in every generation of supercomputers. Assembling a large number of components into a single cluster makes a machine more powerful, but also much more prone to failures. Therefore, ... Keywords: fault tolerance, checkpoint/restart, semi-blocking algorithm, adaptive runtime system, SSD

Xiang Ni; Esteban Meneses; Laxmikant V. Kale

2012-09-01T23:59:59.000Z

319

line, Pinal County, Arizona RECORD OF CATEGORICAL EXCLUSION DETERMINATION  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

along the existing along the existing Empire-EDS 11S-kV transmission line, Pinal County, Arizona RECORD OF CATEGORICAL EXCLUSION DETERMINATION A. Proposed Action: Western proposes to replace structures and upgrade to a double circuit 230-kV transmission line on its Empire-ED5 115-kV transmission line, within Western's existing right-of-way. This will include the rebuild of 9.2 miles of transmission line, replacing the H-frame structures with steel monopole structures with foundations, hardware and insulator replacement and adding a overhead ground-wire over the entire length of the project. Western will access the structure using crew trucks along the existing access roads. This work is necessary to maintain the safety and reliability of the bulk electrical system.

320

Time lines  

Science Conference Proceedings (OSTI)

... The reactor was shut down on April 3, 2011 and restarted to low power on February 8, 2012. During the post-outage period, which runs until ...

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

TITLE III EVALUATION REPORT FOR THE SURFACE AND SUBSURFACE POWER SYSTEM  

SciTech Connect

The objective of this evaluation is to provide recommendations to ensure consistency between the technical baseline requirements, baseline design, and the alternate constructed power system. Recommendations for resolving discrepancies between the alternate constructed power system, the technical baseline requirements, and the baseline design are included in this report. Cost and schedule estimates are provided for all recommended modifications. This report does not address items which do not meet current safety or code requirements. These items are identified to the CMO and immediate action is taken to correct the situation. The report does identify safety and code items for which the A/E is recommending improvements. The recommended improvements will exceed the minimum requirements of applicable code and safety guidelines. These recommendations are intended to improve and enhance the operation and maintenance of the facility. This Title III Evaluation Report (TER) does not include evaluation of surface electrical construction support facilities used to provide temporary construction power where the intent to remove such facilities when construction is completed such as tent storage buildings, shop buildings, fuel storage area etc. Furthermore, this TER does not include the extension of the existing overhead power lines to the booster pump station that was designed, installed, and is maintained by Nevada Test Site (NTS).

W.J. REED

1999-08-16T23:59:59.000Z

322

Nuclear Maintenance Applications Center: On-Line Leak Sealing: A Guide for Nuclear Power Plant Maintenance Personnel (Update of NP-6 523-D)  

Science Conference Proceedings (OSTI)

On-line leak sealing consists of repairing a leak or potential leak while the plant is operating. A pre-engineered fixture or part of the component itself is used to form a cavity that will contain the leak source. The fixture design includes a means of injecting the sealant using a shutoff adapter. The injection equipment is attached to the adaptor, and sealant is injected either directly into the cavity or into a peripheral seal to seal the leak. Although the methodology has been in existence for 45 ye...

2011-06-29T23:59:59.000Z

323

Transmission line capital costs  

Science Conference Proceedings (OSTI)

The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy`s Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs.

Hughes, K.R.; Brown, D.R.

1995-05-01T23:59:59.000Z

324

Two terminal line voltage thermostat  

Science Conference Proceedings (OSTI)

A two terminal line voltage thermostat includes a switch which effectively connects line voltage to a heater load. The entire process is controlled by an integrated circuit microcontroller which is powered by a rectified voltage from a transformer secondary connected to a primary which is in series with the heater load. Backup battery power is provided to maintain limited functions of the microcontroller in the event of overall power loss. The microcontroller is programmed to meet the temperature sensing and control requirements specific to a two terminal electric baseboard heating installation. 7 figs.

Stalsberg, K.J.; Ingalls, J.E.; Hoglund, S.R.

1995-10-10T23:59:59.000Z

325

A Powerful Optimization Approach for the Multi Channel Dissemination Networks  

E-Print Network (OSTI)

In the wireless environment, dissemination techniques may improve data access for the users. In this paper, we show a description of dissemination architecture that fits the overall telecommunication network. This architecture is designed to provide efficient data access and power saving for the mobile units. A concurrency control approach, MCD, is suggested for data consistency and conflict checking. A performance study shows that the power consumption, space overhead, and response time associated with MCD is far less than other previous techniques.

Al-Mogren, Ahmad Saad

2010-01-01T23:59:59.000Z

326

Managing Transmission Line Wood Structures  

Science Conference Proceedings (OSTI)

The objective of this project is to reduce capital cost by extending life expectancy of overhead transmission wood structures through inspection and assessment procedures and through aging mitigation techniques and tools.

2005-11-29T23:59:59.000Z

327

BEAM LINE  

NLE Websites -- All DOE Office Websites (Extended Search)

BEAM LINE BEAM LINE 45 W ILHELM ROENTGEN'S INITIAL DISCOVERY of X-radiation in 1895 led immediately to practical applications in medicine. Over the next few decades X rays proved to be an invaluable tool for the investigation of the micro-world of the atom and the development of the quantum theory of matter. Almost a century later, telescopes designed to detect X-radiation are indispensable for understanding the structure and evolution of the macro-world of stars, galaxies, and the Universe as a whole. The X-Ray Universe by WALLACE H. TUCKER X-ray images of the Universe are strikingly different from the usual visible-light images. 46 SUMMER 1995 did not think: I investigated." Undeterred by NASA's rejection of a proposal to search for cosmic X-radiation, Giacconi persuaded the

328

RM Power Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

in 1990. The projects serve Colorado, Kansas, Nebraska and Wyoming with 830 MW of installed capacity and 3,360 miles of transmission line. About Power Marketing...

329

PowerPoint Presentation  

NLE Websites -- All DOE Office Websites (Extended Search)

resolved Power capture and conversion in line with prediction 11 CF16539GG 1 OCEAN POWER DELIVERY LTD PROJECTS 12 CF16539GG 1 Enersis - Project 1 Enersis Portugal's largest...

330

Analysis of the tradeoff between irrigated agriculure and hydroelectric power in the Pacific Northwest. [Base-line estimate of the effects of agricultural irrigation on the hydroelectric power generating potential projected for the year 2020  

DOE Green Energy (OSTI)

Hydrogeneration and irrigated agriculture are major competing users of the waters of the Columbia River and its tributaries. Irrigated agriculture requires the diversion of large amounts of water from the rivers, only part of which returns. As a result, streamflow is reduced and the generation potential of dams located downstream from points of irrigation diversion is reduced. In addition, irrigated agriculture involves the direct consumption of electricity to pump irrigation water and to apply it to crops in the field. The purpose of this report is to make a baseline estimate of the impact on the electrical generation system in the region of the level of irrigation development projected for year 2020 by the states of Oregon, Washington, and Idaho. This baseline estimate reflects the assumption that current conditions will prevail in the future. The results, therefore, provide a standard against which the impacts of changes in current conditions can be measured. It is estimated that the projected development level of 11.4 million acres of irrigated agriculture in Oregon, Washington, and Idaho by year 2020 would result in foregone hydroelectric generation potential of approximately 17.8 million megawatt-hours (MWh) annually and direct consumption of electric power for pumping and application of approximately 10.3 million MWh's annually. Thus, a total of 28.1 million MWh's of electric power generation will have to be traded off each year if irrigated agriculture is to be conducted on the projected scale. (ERB)

Davis, A. E.

1979-01-01T23:59:59.000Z

331

Kathleen F. Jones April 1996 CRRELREPORTCRRELREPORT96-296-2  

E-Print Network (OSTI)

to overhead power and communication lines, towers, and other ice- sensitive structures. There is little ........................................................................... 6 Cooling flux required to warm impinging precipitation............................. 7 Convective cooling ............................................................................................ 7

332

Office of Electricity Delivery and Energy Reliability, OE-20  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

forests, view sheds, conservation, restoration, and preservation. For the last three years, our focus has been opposing the overhead PATH high voltage power lines. Pursuant to...

333

Electrical Effects of HVDC Transmission Lines  

Science Conference Proceedings (OSTI)

High-voltage direct current (HVDC) transmission lines are used to transmit large amounts of power over long distances. The Electric Power Research Institute (EPRI) and others have produced many publications over approximately the past three decades, expounding on this topic. Several HVDC transmission lines have been built and have been in operation around the world over that period, and recently, there has been increased interest in the advantages that HVDC transmission affords. HVDC lines, like high-vol...

2010-12-23T23:59:59.000Z

334

Identification of Severe Multiple Contingencies in Electric Power Networks  

E-Print Network (OSTI)

we identify a few transmission lines in a large power systemphase angles ? . When transmission lines are removed fromthat afternoon, just three transmission lines that underwent

Donde, Vaibhav; Lopez, Vanessa; Lesieutre, Bernard; Pinar, Ali; Yang, Chao; Meza, Juan

2005-01-01T23:59:59.000Z

335

A Guide for Transmission Line Voltage Upgrade  

Science Conference Proceedings (OSTI)

In the last few decades, construction of new transmission facilities has not caught up with the demand for electric power. The problem of transmission capacity shortage was further compounded by deregulation of the power industry, which allows power to be dispatched from any generation source for the lowest energy cost. As a result, lines that were not planned for these power flows may now be overloaded. A number of bottlenecks were thus created, restricting power transfer from one location to another. U...

2008-12-09T23:59:59.000Z

336

POWER MARKETING ADMINISTRATIONS'INSTALLATION OF FIBER OPTICS...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(Bonneville), Western Area Power Administration (Western), and Southwestern Power Administration (Southwestern) - own and operate transmission lines that cross 22...

337

Reactive power compensating system  

DOE Patents (OSTI)

The reactive power of an induction machine is compensated by providing fixed capacitors on each phase line for the minimum compensation required, sensing the current on one line at the time its voltage crosses zero to determine the actual compensation required for each phase, and selecting switched capacitors on each line to provide the balance of the compensation required.

Williams, Timothy J. (Redondo Beach, CA); El-Sharkawi, Mohamed A. (Renton, WA); Venkata, Subrahmanyam S. (Seattle, WA)

1987-01-01T23:59:59.000Z

338

CHAPTER III OVERHEAD ORGANIZATION  

Science Conference Proceedings (OSTI)

... These positions frequently pay well and are political sinecures, eagerly ... of the personnel from political domination, the stimulation of applications ...

2010-03-19T23:59:59.000Z

339

Overhead Conductor Management Guide  

Science Conference Proceedings (OSTI)

As transmission systems age, utilities are increasingly concerned about the reliability of aging conductors, especially ACSR conductors, which cannot be assessed visually because of the layers of aluminum strand that cover their cores. Utilities wishing to determine how much core strength remains in these conductors can only do so by sampling the conductor and subsequently subjecting it to tensile testing or by looking at the significant circuits that pose a reliability risk using the Cormon Device or El...

2010-12-23T23:59:59.000Z

340

EIS-0486: Plains & Eastern Clean Line Transmission Project | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

86: Plains & Eastern Clean Line Transmission Project 86: Plains & Eastern Clean Line Transmission Project EIS-0486: Plains & Eastern Clean Line Transmission Project SUMMARY This EIS will evaluate the potential environmental impacts of participating with Clean Line Energy Partners LLC (Clean Line) in the proposed Plains & Eastern Project. The proposed project would include an overhead ± 600 kilovolt (kV) high voltage direct current (HVDC) electric transmission system and associated facilities with the capacity to deliver approximately 3,500 megawatts (MW) primarily from renewable energy generation facilities in the Oklahoma Panhandle region to load-serving entities in the Mid-South and Southeast via an interconnection with the Tennessee Valley Authority (TVA). PUBLIC COMMENT OPPORTUNITIES None available at this time.

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Effective Daylighting: Evaluating Daylighting Performance in the San Francisco Federal Building from the Perspective of Building Occupants  

E-Print Network (OSTI)

Horizontal lines indicate location of overhead luminaires.horizontal lines indicate location of overhead luminaires.overhead electrical lighting was at full output. The horizontal line

Konis, Kyle Stas

2011-01-01T23:59:59.000Z

342

Aspects of the Biology and the Effects of Traditional and Non-Traditional Insecticides on Citrus Thrips and Avocado Thrips with the Objective of Improving Integrated Pest Management  

E-Print Network (OSTI)

rows where the overhead sprinkler line was turned off. Therows where the overhead sprinkler line was turned off. Thealone versus (2) drip-line with overhead sprinkler, because

Zahn, Deane K.

2011-01-01T23:59:59.000Z

343

Power Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Projects Power Projects Contact SN Customers Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Rates You are here: SN Home page > About SNR Power Projects Central Valley: In California's Central Valley, 18 dams create reservoirs that can store 13 million acre-feet of water. The project's 615 miles of canals irrigate an area 400 miles long and 45 miles wide--almost one third of California. Powerplants at the dams have an installed capacity of 2,099 megawatts and provide enough energy for 650,000 people. Transmission lines total about 865 circuit-miles. Washoe: This project in west-central Nevada and east-central California was designed to improve the regulation of runoff from the Truckee and Carson river systems and to provide supplemental irrigation water and drainage, as well as water for municipal, industrial and fishery use. The project's Stampede Powerplant has a maximum capacity of 4 MW.

344

Western Area Power Administration, Desert Southwest Region  

NLE Websites -- All DOE Office Websites (Extended Search)

5 Western Area Power Administration, Desert Southwest Region Liberty-Parker 2 230-kV Transmission Line Optical Power Ground Wire Repairs - Continuation Sheet Project Description...

345

Reactive power compensator  

DOE Patents (OSTI)

A system and method for determining and providing reactive power compensation for an inductive load. A reactive power compensator (50,50') monitors the voltage and current flowing through each of three distribution lines (52a, 52b, 52c), which are supplying three-phase power to one or more inductive loads. Using signals indicative of the current on each of these lines when the voltage waveform on the line crosses zero, the reactive power compensator determines a reactive power compensator capacitance that must be connected to the lines to maintain a desired VAR level, power factor, or line voltage. Alternatively, an operator can manually select a specific capacitance for connection to each line, or the capacitance can be selected based on a time schedule. The reactive power compensator produces control signals, which are coupled through optical fibers (102/106) to a switch driver (110, 110') to select specific compensation capacitors (112) for connections to each line. The switch driver develops triggering signals that are supplied to a plurality of series-connected solid state switches (350), which control charge current in one direction in respect to ground for each compensation capacitor. During each cycle, current flows from ground to charge the capacitors as the voltage on the line begins to go negative from its positive peak value. The triggering signals are applied to gate the solid state switches into a conducting state when the potential on the lines and on the capacitors reaches a negative peak value, thereby minimizing both the potential difference and across the charge current through the switches when they begin to conduct. Any harmonic distortion on the potential and current carried by the lines is filtered out from the current and potential signals used by the reactive power compensator so that it does not affect the determination of the required reactive compensation.

El-Sharkawi, Mohamed A. (Renton, WA); Venkata, Subrahmanyam S. (Woodinville, WA); Chen, Mingliang (Kirkland, WA); Andexler, George (Everett, WA); Huang, Tony (Seattle, WA)

1992-01-01T23:59:59.000Z

346

Reactive Power Compensator.  

DOE Patents (OSTI)

A system and method for determining and providing reactive power compensation for an inductive load. A reactive power compensator (50,50') monitors the voltage and current flowing through each of three distribution lines (52a, 52b, 52c), which are supplying three-phase power to one or more inductive loads. Using signals indicative of the current on each of these lines when the voltage waveform on the line crosses zero, the reactive power compensator determines a reactive power compensator capacitance that must be connected to the lines to maintain a desired VAR level, power factor, or line voltage. Alternatively, an operator can manually select a specific capacitance for connection to each line, or the capacitance can be selected based on a time schedule. The reactive power compensator produces control signals, which are coupled through optical fibers (102/106) to a switch driver (110, 110') to select specific compensation capacitors (112) for connections to each line. The switch driver develops triggering signals that are supplied to a plurality of series-connected solid state switches (350), which control charge current in one direction in respect to ground for each compensation capacitor. During each cycle, current flows from ground to charge the capacitors as the voltage on the line begins to go negative from its positive peak value. The triggering signals are applied to gate the solid state switches into a conducting state when the potential on the lines and on the capacitors reaches a negative peak value, thereby minimizing both the potential difference and across the charge current through the switches when they begin to conduct. Any harmonic distortion on the potential and current carried by the lines is filtered out from the current and potential signals used by the reactive power compensator so that it does not affect the determination of the required reactive compensation. 26 figs.

El-Sharkawi, M.A.; Venkata, S.S.; Chen, M.; Andexler, G.; Huang, T.

1992-07-28T23:59:59.000Z

347

Prediction of transmission line overloading using intelligent technique  

Science Conference Proceedings (OSTI)

With the worldwide deregulation of power system, fast line flows or real power (MW) security assessment has become a challenging task for which fast and accurate prediction of line flows is essential. Since last few years, limit violation of voltage ... Keywords: Cascade neural network, Counterpropagation neural network, Dominant class, Identification module, Modified BP algorithm, Overloading prediction, Power flows, Prediction module, Subordinate class

Savita Sharma; Laxmi Srivastava

2008-01-01T23:59:59.000Z

348

onlinetraining_1.eps  

NLE Websites -- All DOE Office Websites (Extended Search)

On-Line Training Curriculum 8001 AC Voltage Generation 8002 Power Factor 8003 Impedance and Voltage Drop 8004 Three Phase Power Systems 8005 System Layout 8006 Overhead Lines 8007...

349

On the Power of Reusable Magic States  

E-Print Network (OSTI)

In this paper we study reusable magic states. These states are a special subset of the standard magic states. Once distilled, reusable magic states can be used, repeatedly, to apply some unitary U. Given this property, reusable magic states have the potential to greatly lower qubit and gate overheads in fault-tolerant quantum computation. While these states are promising, we provide a strong argument for their limited computational power. Specifically, we show that if reusable magic states can be used to apply non-Clifford unitaries, then we can exploit them to efficiently simulate poly-sized quantum circuits on a classical computer.

Jonas T. Anderson

2012-05-01T23:59:59.000Z

350

On the Power of Reusable Magic States  

E-Print Network (OSTI)

In this paper we study reusable magic states. These states are a special subset of the standard magic states. Once distilled, reusable magic states can be used, repeatedly, to apply some unitary U. Given this property, reusable magic states have the potential to greatly lower qubit and gate overheads in fault-tolerant quantum computation. While these states are promising, we provide a strong argument for their limited computational power. Specifically, we show that if reusable magic states can be used to apply non-Clifford unitaries, then we can exploit them to efficiently simulate poly-sized quantum circuits on a classical computer.

Anderson, Jonas T

2012-01-01T23:59:59.000Z

351

On-Line Determination of the MTC 1 On-Line Determination of the MTC (Moderator  

E-Print Network (OSTI)

at the PWR nuclear power plant. Ann. Nucl. Energy 24: 55-64 16. Laggiard E and Runkel J (1997) Evaluation coefficient in operating nuclear power plant. In: SMORN VII, June 19-23, 1995, Avignon, France, pp 41-47 23 measurements taken at an operating power plant. #12;On-Line Determination of the MTC 11 3.1 Description

Demazière, Christophe

352

Emergency control of synchronous and nonsynchronous tie lines  

SciTech Connect

It is shown that for power systems using ''weak'' synchronous tie lines (ac lines), by employing backup separation with a mutual angle exceeding the critical value and allocating a portion of the generators to the receiving power system, it is possible to achieve synchronous-tie emergency-control capabilities close to those provided by emergency control of a nonsynchronous tie (a line and dc link as well as a line with electromechanical converters).

Kolonskii, T.V.

1980-01-01T23:59:59.000Z

353

Transmission Line Security Monitor: Final Report  

SciTech Connect

The Electric Power Transmission Line Security Monitor System Operational Test is a project funded by the Technical Support Working Group (TSWG). TSWG operates under the Combating Terrorism Technical Support Office that functions under the Department of Defense. The Transmission Line Security Monitor System is based on technology developed by Idaho National Laboratory. The technology provides a means for real-time monitoring of physical threats and/or damage to electrical transmission line towers and conductors as well as providing operational parameters to transmission line operators to optimize transmission line operation. The end use is for monitoring long stretches of transmission lines that deliver electrical power from remote generating stations to cities and industry. These transmission lines are generally located in remote transmission line corridors where security infrastructure may not exist. Security and operational sensors in the sensor platform on the conductors take power from the transmission line and relay security and operational information to operations personnel hundreds of miles away without relying on existing infrastructure. Initiated on May 25, 2007, this project resulted in pre-production units tested in realistic operational environments during 2010. A technology licensee, Lindsey Manufacturing of Azusa California, is assisting in design, testing, and ultimately production. The platform was originally designed for a security monitoring mission, but it has been enhanced to include important operational features desired by electrical utilities.

John Svoboda

2011-04-01T23:59:59.000Z

354

Final joint environmental assessment for the construction and routine operation of a 12-kilovolt (KV) overhead powerline right-of-way, and formal authorization for a 10-inch and 8-inch fresh water pipeline right-of-way, Naval Petroleum Reserve No. 1, Kern County, California  

SciTech Connect

The purpose and need of the proposed action, which is the installation of an overhead powerline extension from an Naval Petroleum Reserve No. 1 (NPR-1) power source to the WKWD Station A, is to significantly reduce NPR-1`s overall utility costs. While the proposed action is independently justified on its own merits and is not tied to the proposed NPR-1 Cogeneration Facility, the proposed action would enable DOE to tie the NPR-1 fresh water pumps at Station A into the existing NPR-1 electrical distribution system. With the completion of the cogeneration facility in late 1994 or early 1995, the proposed action would save additional utility costs. This report deals with the environmental impacts of the construction of the powerline and the water pipeline. In addition, information is given about property rights and attaining permission to cross the property of proposed affected owners.

1994-10-01T23:59:59.000Z

355

FRN Request for Proposals for New or Upgraded Transmission Line...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Western Area Power Administration Request for Proposals for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act of 2005 AGENCY:...

356

Line Extension Analysis | Open Energy Information  

Open Energy Info (EERE)

Line Extension Analysis Line Extension Analysis Jump to: navigation, search When a prospective electric customer requests service for a home or facility that is not currently serviced by the electric grid, the customer usually must pay a distance-based fee for the cost of extending power lines to the home or facility. In many cases, it is cheaper to use an on-site renewable energy system to meet a prospective customer’s electricity needs. Certain states require utilities to provide information regarding renewable energy options when prospective customers request a line extension. [1] Line Extension Analysis Incentives CSV (rows 1 - 12) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Authorization of Line Extension (Nebraska) Line Extension Analysis Nebraska Agricultural

357

Estes-Flatiron Transmission Line Rebuild  

NLE Websites -- All DOE Office Websites (Extended Search)

Estes-Flatiron Transmission Line Rebuild Estes-Flatiron Transmission Line Rebuild Skip Navigation Links Transmission Functions Infrastructure projects Interconnection OASIS OATT Estes-Flatiron Transmission Line Rebuild Project Western Area Power Administration proposes to rebuild approximately 32 miles of double wood-pole structure 115-kilovolt transmission line that exists between Estes Park and Flatiron Reservoir in Larimer County, Colo. The proposal would remove 16 miles of transmission line, and modernize 16 miles to steel-pole double-circuit 115-kV transmission line. The reduction and modernizing of transmission lines will occur on Federal, state and private lands. The public parcels are administered by the Arapaho and Roosevelt National Forest, which is a cooperating agency in the project.

358

UGP Power Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

River. Seven dams and powerplants have the installed capacity of 2,610 MW. That hydroelectric power is delivered across about 7,919 circuit-miles of Federal transmission line....

359

3 One-Line Diagram and Bus/Branch Model  

E-Print Network (OSTI)

One-line diagram and bus/branch model Ohm’s law Losses Kirchoff’s law Power flow calculations (different model idealizations) Reference bus Power System & LMP Fundamentals – WEM 301 © 2008 ISO New England Inc.

Eugene Litvinov Director; Marginal Loss Pricing; Market System; Major Components; Line Line; Line Line

2008-01-01T23:59:59.000Z

360

APPLICATION OF A CATEGORICAL EXCLUSION  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

American Electric Power (AEP) for the installation and maintenance of an overhead 7.2kv electrical power line from an existing AEP power pole located on U S Department of Energy...

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

CX-007786: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of a permit to American Electric Power (AEP) for the installation and maintenance of an overhead 7.2 kilovolt electrical power line from an existing AEP power pole located on U S...

362

DOE/EA-1366; Environmental Assessment Santiam-Bethel Transmission Line Project (09/2001)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Preliminary Environmental Assessment Preliminary Environmental Assessment Santiam-Bethel Transmission Line Project Bonneville Power Administration September 2001 Santiam-Bethel Transmission Line Project Responsible Agency: U.S. Department of Energy, Bonneville Power Administration (BPA) Name of Proposed Project: Santiam-Bethel Transmission Line Project Abstract: Bonneville Power Administration proposes to rebuild the first 17 miles of the Santiam-Chemawa transmission line from Santiam Substation to the line's connection to Portland General Electric's Bethel Substation. BPA would replace the existing single-circuit 230-kilovolt (kV) line with towers that could support two circuits. The existing line supplies both Bethel Substation and BPA's Chemawa Substation. The new lines would eliminate

363

Environmental analysis of proposed 230 kV transmission line from Teeland substation to Reed substation  

SciTech Connect

The environmental effects of an electric power transmission line approximately 20 miles long proposed near Anchorage, Alaska, are discussed.

1975-01-01T23:59:59.000Z

364

Advance Funding and Development Agreement: Plains & Eastern Clean Line  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Advance Funding and Development Agreement: Plains & Eastern Clean Advance Funding and Development Agreement: Plains & Eastern Clean Line Transmission Project (September 20, 2012) Advance Funding and Development Agreement: Plains & Eastern Clean Line Transmission Project (September 20, 2012) Advance Funding and Development Agreement: Plains & Eastern Clean Line Transmission Project (September 20, 2012) More Documents & Publications Plains & Eastern Clean Line Project Proposal for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act of 2005 Letter from Deputy Secretary Poneman to Clean Line Energy Regarding the Plains & Eastern Clean Line Project Under Section 1222 of EPAct 2005 (April 5, 2012) 2013 Annual Planning Summary for the Southwestern Area Power Administration

365

Single transmission line data acquisition system  

DOE Patents (OSTI)

A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensors monitor specific process variables and transmit measurement values over the single transmission line to a master station when addressed by the master station. Power for all remote stations (up to 980) is provided by driving the line with constant voltage supplied from the master station and automatically maintained independent of the number of remote stations directly connected to the line. The transmission line can be an RG-62 coaxial cable with lengths up to about 10,000 feet with branches up to 500 feet. The remote stations can be attached randomly along the line. The remote stations can be scanned at rates up to 980 channels/second.

Fasching, George E. (Morgantown, WV)

1984-01-01T23:59:59.000Z

366

Financing, Overhead, and Profit: An In-Depth Discussion of Costs Associated with Third-Party Financing of Residential and Commercial Photovoltaic Systems  

SciTech Connect

Previous work quantifying the non-hardware balance-of-system costs -- or soft costs -- associated with building a residential or commercial photovoltaic (PV) system has left a significant portion unsegmented in an 'other soft costs' category. This report attempts to better quantify the 'other soft costs' by focusing on the financing, overhead, and profit of residential and commercial PV installations for a specific business model. This report presents results from a bottom-up data-collection and analysis of the upfront costs associated with developing, constructing, and arranging third-party-financed residential and commercial PV systems. It quantifies the indirect corporate costs required to install distributed PV systems as well as the transactional costs associated with arranging third-party financing.

Feldman, D.; Friedman, B.; Margolis, R.

2013-10-01T23:59:59.000Z

367

Nuclear reactor overflow line  

DOE Patents (OSTI)

The overflow line for the reactor vessel of a liquid-metal-cooled nuclear reactor includes means for establishing and maintaining a continuous bleed flow of coolant amounting to 5 to 10% of the total coolant flow through the overflow line to prevent thermal shock to the overflow line when the reactor is restarted following a trip. Preferably a tube is disposed concentrically just inside the overflow line extending from a point just inside the reactor vessel to an overflow tank and a suction line is provided opening into the body of liquid metal in the reactor vessel and into the annulus between the overflow line and the inner tube.

Severson, Wayne J. (Pittsburgh, PA)

1976-01-01T23:59:59.000Z

368

Pulse power linac  

DOE Patents (OSTI)

A linear acceleration for charged particles is constructed of a plurality of transmission line sections that extend between a power injection region and an accelerating region. Each line section is constructed of spaced plate-like conductors and is coupled to an accelerating gap located at the accelerating region. Each gap is formed between a pair of apertured electrodes, with all of the electrode apertures being aligned along a particle accelerating path. The accelerating gaps are arranged in series, and at the injection region the line sections are connected in parallel. At the injection region a power pulse is applied simultaneously to all line sections. The line sections are graduated in length so that the pulse reaches the gaps in a coordinated sequence whereby pulse energy is applied to particles as they reach each of the gaps along the accelerating path.

Villa, Francesco (Alameda, CA)

1990-01-01T23:59:59.000Z

369

Power factors revealed  

SciTech Connect

When it comes to power, not all electric appliances are equal. To find out how much power an appliance consumes, energy auditors occasionally multiply line voltage by the current reading obtained from a clamp-on ammeter. However, depending on the appliance, this simple calculation will not always reflect true power usages. Since utilities bill only for true energy usage, residential energy audits should reflect the true power usage. This article explains in detail measuring power usage, ending with a number of suggestions including use of a wattmeter rather than a ammeter. 2 figs.

Brule, P.

1997-05-01T23:59:59.000Z

370

BlackLining Demo BlackLining Demo  

E-Print Network (OSTI)

BlackLining Demo BlackLining Demo BlackLining Demo YOUR PAYCHECKPAYROLL TAXES AND EMPLOYMENT LAW BY SPONSORED BY #12;BlackLining Demo e BlackLining Demo e BlackLining Demo e AMERICAN PAYROLL ASSOCIATION i Design by PRIWORKS.com. Images from Thinkstock.com. #12;BlackLining Demo BlackLining Demo Black

Harms, Kyle E.

371

North Australian Cloud Lines  

Science Conference Proceedings (OSTI)

A satellite classification and climatology of propagating mesoscale cloud fines in northern Australia is presented. These cloud fines range from long, narrow lines of shallow convection to extensive deep convective squall lines with mesoscale ...

W. Drosdowsky; G. J. Holland

1987-11-01T23:59:59.000Z

372

Interline Photovoltaic (I-PV) power system - A novel concept of power flow control and management  

E-Print Network (OSTI)

This paper presents a new system configuration for a large-scale Photovoltaic (PV) power system with multi-line transmission/distribution networks. A PV power plant is reconfigured in a way that two adjacent power system ...

Khadkikar, Vinod

373

Two Line Subject Title One Line Title  

NLE Websites -- All DOE Office Websites (Extended Search)

efficiency and reduce emmisions from advanced FE systems 30 Energy Storage and Smart Grid Improve reliability and stability of the grid Provide responsive power to meet...

374

Characterization of Planar Transmission Lines  

Science Conference Proceedings (OSTI)

... References on: On-Wafer Measurement and Calibration, Planar Transmission Line Characterization and Multiconductor Transmission Lines. ...

2011-12-15T23:59:59.000Z

375

CX-006706: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

line from (existing) pole 99 to the Ten Sleep location for a new generator. The transformer bank at the WDF will be dismantled, the line extended overhead, across 5 new power...

376

Electrical Effects of HVDC Transmission Lines--2012  

Science Conference Proceedings (OSTI)

Electrical effects may constrain the design of prospective high-voltage direct current (HVDC) lines, when either alone or sharing the same structures with high-voltage alternating current (HVAC) lines. In 2012, the Electric Power Research Institute (EPRI) research focused on electric field and ion density at ground level. The ultimate goal is to calculate with confidence these electrical effects. The work built on research previously performed, including pioneering research performed at EPRI’s ...

2012-12-12T23:59:59.000Z

377

Electrical Effects of HVDC Transmission Lines  

Science Conference Proceedings (OSTI)

Electrical effects can constrain the design of prospective high-voltage direct current (HVDC) lines operating either alone or sharing the same rights of way structures with high-voltage alternate current (HVAC) lines. In 2013, the Electric Power Research Institute (EPRI) research on HVDC electrical effects focused on electric field and ion density at ground level. The ultimate goal of the project is to calculate with confidence these electrical effects. The algorithms on which the software currently ...

2013-11-08T23:59:59.000Z

378

Indiana Michigan Power Co (Indiana) | Open Energy Information  

Open Energy Info (EERE)

Indiana) Indiana) Jump to: navigation, search Name Indiana Michigan Power Co Place Indiana Utility Id 9324 References EIA Form EIA-861 Final Data File for 2010 - File2_2010[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png COGEN/SPP - Cogeneration and/or Small Power Production Service CS-IRP2 - Contract Service Interruptible Power Industrial Cogeneration and/or Small Power Production - Standard Meter Industrial Cogeneration and/or Small Power Production - TOD Industrial ECLS - 100 watt HPS Lighting ECLS - 100 watt HPS - Overhead Circuitry Lighting ECLS - 100 watt HPS - Post-Top Lighting ECLS - 100 watt HPS - Underground Circuitry Lighting

379

Convex Quadratic Relaxations of Nonlinear Programs in Power ...  

E-Print Network (OSTI)

Sep 30, 2013 ... Three case studies in optimal power flows, line-switching optimal power flows, and capacitor placement demonstrate the benefits of the new ...

380

Microsoft PowerPoint - parisot_poster.ppt  

NLE Websites -- All DOE Office Websites (Extended Search)

Overview Overview of the ICRF system in C-Mod Recent improvements in the antennas and transmission line system have improved power handling and allow flexible high power...

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Environmental Assessment and Finding of No Significant Impact: Western's Hoover Dam Bypass Project Phase II (Double-Circuiting a Portion of the Hoover-Mead No.5 and No.7 230-kV Transmission Lines with the Henderson-Mead No.1 230-kV Transmission Line, Clark County, Nevada)  

SciTech Connect

The U.S. Highway 93 (U.S. 93) Hoover Dam Bypass Project calls for the U.S. Department of Energy (DOE) Western Area Power Administration (Western) to remove its Arizona and Nevada (A&N) Switchyard. As a result of this action, Western must reconfigure its existing electrical transmission system in the Hoover Dam area. Western proposes to double-circuit a portion of the Hoover-Mead No.5 and No.7 230-kV Transmission Lines with the Henderson-Mead No.1 Transmission Line (see Figure 1-1). Double-circuiting is the placement of two separate electrical circuits, typically in the form of three separate conductors or bundles of conductors, on the same set of transmission line structures. The old Henderson-Hoover 230-kV Transmission Line would become the new Henderson-Mead No.1 and would extend approximately eight miles to connect with the Mead Substation. Western owns, operates, and maintains the Hoover-Mead No.5 and No.7, and Henderson-Hoover electrical power transmission lines. Additionally, approximately 0.25 miles of new right-of-way (ROW) would be needed for the Henderson-Mead No.1 when it transfers from double-circuiting with the Hoover-Mead No.7 to the Hoover-Mead No.5 at the Boulder City Tap. The proposed project would also involve a new transmission line ROW and structures where the Henderson-Mead No.1 will split from the Hoover-Mead No.5 and enter the northeast corner of the Mead Substation. Lastly, Western has proposed adding fiber optic overhead ground wire from the Hoover Power Plant to the Mead Substation on to the Henderson-Mead No.1, Hoover-Mead No.5 and No.7 Transmission Lines. The proposed project includes replacing existing transmission line tower structures, installing new structures, and adding new electrical conductors and fiber optic cables. As a consequence of these activities, ground disturbance may result from grading areas for structure placement, constructing new roads, improving existing roads for vehicle and equipment access, and from installing structures, conductors, and fiber optic cables. Project construction activities would be conducted within the existing 200-foot transmission line ROW and 50-foot access road ROW, although new spur access roads could occur outside of existing ROWs. As lead Federal agency for this action under National Environmental Policy Act (NEPA), Western must ensure that adverse environmental effects on Federal and non-Federal lands and resources are avoided or minimized. This Environmental Assessment (EA) is intended to be a concise public document that assesses the probable and known impacts to the environment from Western's Proposed Action and alternatives, and reaches a conclusion about the significance of the impacts. This EA was prepared in compliance with NEPA regulations published by the Council on Environmental Quality (40 CFR 1500-1508) and implementing procedures of the Department of Energy (10 CFR 1021).

N /A

2003-10-27T23:59:59.000Z

382

Two Line Subject Title One Line Title  

NLE Websites -- All DOE Office Websites (Extended Search)

Baseline for Fossil Energy Power Plants study, Volume 1: Bituminous Coal and Natural Gas to Electricity; NETL, May 2007. PC Boiler (No SCR) Steam Bag Filter Wet Limestone FGD...

383

Germ-line Allele  

NLE Websites -- All DOE Office Websites (Extended Search)

Germ-line Allele Germ-line Allele Name: Rachel Location: N/A Country: N/A Date: N/A Question: Can you please explain a "germ-line allele" to me! It is very important for a research paper I am writing about breast cancer. Replies: Mutations in genes are only able to be passed to the offspring if they are found in gametes (egg, sperm) mutations that occur in body cells other than gametes are usually not important because the cells can be replaced and they die eventually. The only way a characteristic can be passed to the offspring is through the eggs and sperm, so if there is a mutation in one these cells, the offspring can inherit the mutation. So a germ-line cell is a gamete. And a germ line allele is a version of the trait that is passed to the offspring through the germ line cell (or gamete).

384

Southwestern Power Administration  

NLE Websites -- All DOE Office Websites (Extended Search)

News Items News Items Skip Navigation Links December 7, 2012 Southwestern Helps Restore Power After Hurricane Sandy September 27, 2012 New Administrator April 27, 2012 Table Rock Visitor Center April 24, 2012 WFEC Earth Day Publications Skip Navigation Links Annual Performance Plan Annual Report Newsletters Press Releases Strategic Plan SWPA - Overview Video System Map December 7, 2012 Southwestern Helps Restore Power After Hurricane Sandy Southwestern Aids Sandy Recovery Line crews from Southwestern repair distribution lines in Tom's River, New Jersey, following Hurricane Sandy. In the aftermath of Hurricane Sandy in early November 2012, Southwestern Power Administration sent several line, substation, and right-of-way brush crews and 30 pieces of heavy equipment to help restore the electrical grid

385

Series Transmission Line Transformer  

DOE Patents (OSTI)

A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

2004-06-29T23:59:59.000Z

386

New Construction of Distribution Lines, Service Lines, and Appurtenant...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Resources Outside Residential Subdivisions (New York) New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Certain Visually Significant...

387

Reducing system level power consumption for mobile and embedded platforms  

E-Print Network (OSTI)

Abstract. The power consumption of peripheral devices is a significant portion of the overall energy usage of a mobile platform. To take advantage of idle times, most devices offer the ability to transition into low power states. However, the amount of energy saved by utilizing these sleep states depends on the lengths and number of idle periods experienced by the device. This paper describes a new process scheduling algorithm which accumulates device usage information in the form of device windows to make power a first class resource: it attempts to increase the burstiness of both device accesses and idle periods, and it provides enhanced behavior for timeout-based sleep mechanisms. An initial implementation based on the default Linux scheduler demonstrates the algorithm’s and approach’s ability to reduce the average power consumption of devices by increasing device sleep times and reducing transition overheads. 1

Ripal Nathuji; Karsten Schwan

2005-01-01T23:59:59.000Z

388

Authorization of Line Extension (Nebraska) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Authorization of Line Extension (Nebraska) Authorization of Line Extension (Nebraska) Authorization of Line Extension (Nebraska) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Nebraska Program Type Line Extension Analysis Provider Nebraska Public Power District Any entity permitted to establish an electric light and power plant, and/or

389

Two Line Subject Title One Line Title  

NLE Websites -- All DOE Office Websites (Extended Search)

- - Regional University Alliance (NETL-RUA) Grid Technologies Collaborative (GTC) Gregory Reed, PhD - University of Pittsburgh - GTC Lead (Director, Electric Power Initiative; Associate Director, Center for Energy; and Assoc. Professor, ECE Dept. - Swanson School of Engineering, PITT) * The Grid Technologies Collaborative (GTC) is an integrated industry-university-government research and development group that advances the state-of-the-art in transmission and distribution system level power electronics technologies. * Participants in the collaborative include industry partners and researchers from the U.S. Dept. of Energy's National Energy Technology Laboratory Regional University Alliance (NETL-

390

DSW Power Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Projects Contact DSW Customers Customer Meetings Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Power Projects Contact DSW Customers Customer Meetings Environmental Review-NEPA Operations & Maintenance Planning & Projects Power Marketing Rates DSW Power Projects Boulder Canyon: Straddling the Colorado River near the Arizona-Nevada border, Hoover Dam in Boulder Canyon creates Lake Mead. River waters turning turbines at Hoover Powerplant produce about 2,074 MW--enough electricity for nearly 8 million people. Western markets this power to public utilities in Arizona, California and Nevada over 53.30 circuit-miles of transmission line. Central Arizona: Authorized in 1968, the Central Arizona Project in Arizona and western New Mexico was built to improve water resources in the Colorado River Basin. Segments of the authorization allowed for Federal participation in the Navajo Generating Station. The Federal share of the powerplant's combined capacity is 547 MW.

391

Corona losses in HVdc bipolar lines  

SciTech Connect

The problem related to the prediction of corona losses in HVdc bipolar lines has been solved, in the past, by means of semi-empirical monomial formulae. However, the proposed formulae that are simpler to use do not always give adequate calculation precision, while the formulae that provide the closest results require implicit functions of different complexity, which are difficult to apply; moreover, it is not possible to understand clearly what influence the variations of the different line parameters have on the losses themselves. The new monomial semi-empirical relationship, proposed to predict the corona losses in HVdc bipolar lines, is very simple to use; it highlights the dependence of power losses due to the corona effect by the different line parameters. The formula has been developed by elaborating a considerable amount of available experimental data.

Corbellini, U.; Pelacchi, P. [Univ. of Pisa (Italy). Dept. of Electric Systems and Automation

1996-07-01T23:59:59.000Z

392

The cost of service quality improvements: tracking the flow of funds in social franchise networks in Myanmar  

E-Print Network (OSTI)

administrative overhead to the various lines of service. Thelines and across administrative work vs. quality supervision. Allocating overhead

2013-01-01T23:59:59.000Z

393

Power Operations  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Operations Outage Coordination Standards of Conduct Transmission Planning You are here: SN Home page > Power Operations Power Operations Western's Sierra Nevada Region...

394

EA-1896: Williston to Stateline Transmission Line Project, Mountrail  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

96: Williston to Stateline Transmission Line Project, 96: Williston to Stateline Transmission Line Project, Mountrail Williams Electric Cooperative, Williston, North Dakota EA-1896: Williston to Stateline Transmission Line Project, Mountrail Williams Electric Cooperative, Williston, North Dakota Summary DOE's Western Area Power Administration is preparing this EA to evaluate the environmental impacts of interconnecting the proposed Stateline I transmission line, in Williston, North Dakota, to Western's transmission system. Public Comment Opportunities No public comment opportunities available at this time. Documents Available for Download May 4, 2012 EA-1896: Finding of No Significant Impact Williston to Stateline Transmission Line Project, Mountrail Williams Electric Cooperative, Williams County, North Dakota

395

EPRI Increased Transmission Capacity Workshop Proceedings  

Science Conference Proceedings (OSTI)

This report documents the proceedings of EPRI's Increased Overhead Transmission Capacity Workshop. The workshop was held on September 20, 2011 at the offices of the American Transmission Company in Waukesha, Wisconsin. Participants included members of the EPRI Increased Overhead Transmission Capacity Task Force. The workshop was a joint effort of two EPRI research projects: (1) Increased Power Flow Guidebook and Ratings for Overhead Lines, and (2) Impact of High Temperature Operation on Conductor Systems...

2011-11-30T23:59:59.000Z

396

High impedance fault location in transmission line using nonlinear frequency analysis  

Science Conference Proceedings (OSTI)

The detection and location of high impedance faults on power system has been one of the most difficult problems in power transmission and distribution systems. According to a very highly nonlinear behavior of high impedance faults, a methodology is presented ... Keywords: high impedance fault, nonlinear frequency analysis, power line carrier, transmission line

Min-You Chen; Jin-Qian Zhai; Zi-Qiang Lang; Ju-Cheng Liao; Zhao-Yong Fan

2010-09-01T23:59:59.000Z

397

Electric Transmission Lines (Iowa)  

Energy.gov (U.S. Department of Energy (DOE))

Electric transmission lines capable of operating at 69 kV or greater cannot be constructed along, across, or over any public highways or grounds outside of cities without a franchise from the...

398

Faster Sparse Interpolation of Straight-Line Programs - CECM  

E-Print Network (OSTI)

Sep 10, 2013 ... A straight-line program (SLP) is a model of algebraic computation. An SLP can ..... qi ?? ?greatest power of the i-th prime not exceeding x?.

399

100-N temporary construction line considerations  

SciTech Connect

Present thinking and planning appears to be developing from the following factors as concern the 13.8 KV temporary construction power limit. 1. It is understood that the present intent is to supply 100-N operating requirements from a single stub source in the 230 KV loop. 2. The original thoughts were to obtain construction power over a 13.8 KV line from 151-D substation. 3. Construction load requirements are now less than originally planned since steam has been substituted for electrical drive of primary loop pumps and 5500 hp motor tests are no longer necessary. 4. An extreme emergency backup source for the K plants has always been of concern, although minimized in recent planning. It is desirable to review the temporary construction line requirements from a future operating viewpoint to determine if the line could be useful to the operating plants after completion of construction. It is highly desirable to provide T.C. power source from K plants rather than 151-D and then leave the line and breakers in place for future maintenance assistance and as extreme emergency backup to K plants.

Mollerus, F.J.

1958-12-30T23:59:59.000Z

400

Dirty kilowatts: America's most polluting power plants  

SciTech Connect

In 2006, the US EPA tracked more than 1,400 fossil-fired power plants of varying sizes through its Acid Rain Program. This report ranks each of the 378 largest plants (generating at least 2 million megawatt-hours in 2006) for which both the most recent EPA emissions data and Energy Information Administration (EIA) electric generation data are available. The report ranks each plant based on emission rates, or pounds of pollutant for each megawatt-hour (or million megawatt-hours, in the case of mercury) the plant produced. It ranks the top fifty power plants polluters for sulfur dioxide, nitrogen oxides, carbon dioxide, and mercury. A complete listing of all 378 plants is included as Appendix A. Appendix B contains overheads of an NETL presentation: Tracking new coal-fired power plants - coal's resurgence in electric power generation, 24 January 2007. The 12 states with the heaviest concentrations of the dirtiest power plants, in terms of total tons of carbon dioxide emitted, are: Texas (five, including two of the top 10 dirtiest plants); Pennsylvania (four); Indiana (four, including two of the top 10 dirtiest plants); Alabama (three); Georgia (three, including two of the top three dirtiest plants); North Carolina (three); Ohio (three); West Virginia (three); Wyoming (two); Florida (two); Kentucky (two); and New Mexico (two). Carbon dioxide emissions from power plants are now at roughly 2.5 billion tons per year. Power plants are responsible for about 30%-40% of all man-made CO{sub 2} emissions in the USA. Power plants, especially those that burn coal, are by far the largest single contributor of SO{sub 2} pollution in the United States. Power plant mercury emissions remain steady as compared to previous years. A searchable database ranking 378 U.S. power plants on carbon dioxide, sulfur dioxide, nitrogen oxide and mercury pollution is available online at http://www.dirtykilowatts.org. 22 refs., 8 tabs., 2 apps.

NONE

2007-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Future Inspection and Monitoring of Underground Transmission Lines  

Science Conference Proceedings (OSTI)

Underground transmission lines have performed reliably for the power transmission industry. Nonetheless, there are opportunities to improve on-line condition assessment of the underground cable systems. Some of these opportunities can be realized by incorporating improved sensors, more efficient power sources to the sensors, enhanced data collection systems, and better integration with utilities operations systems. This report describes technologies that can be applied in future inspection and monitoring...

2009-12-01T23:59:59.000Z

402

Development of power facility management services using RFID/USN  

Science Conference Proceedings (OSTI)

In the electric power industry, there are many research projects to stabilise the power and increase the efficiency using ubiquitous technology. Many power utilities control and supervise the transmission line of energy to avoid power failures. In this ... Keywords: #, 47, RFID, RFID&, USN, cable joint, electric power industry, power facility management, radio frequency identification, service framework, ubiquitous sensor networks, wireless networks

Young-Il Kim; Jae-Ju Song; Jin-Ho Shin; Bong-Jae Yi; Hoon Choi

2009-03-01T23:59:59.000Z

403

765kV Transmission line Voltage gradient  

E-Print Network (OSTI)

Corona ring Transmission lines Nowadays, due to the ever increasing energy consumption and power supply optimization, it is required to construct new power plants, substations and transmission lines. In Iran, also, because of increasing demand for electrical energy, for a significant power loss reduction in power transmission over long distances, and to construct high transmission lines that lead to reduction in the economic costs of transmission lines, the transmission lines must be considered at extra high voltage (EHV) levels. These EHV levels should be compared with the low voltage levels in order to extract the benefits. Therefore, in this paper, a review has been conducted on the types of 765 kV transmission lines used in different countries and a comparison between them and the low voltage levels have been performed. Accordingly, the advantages of EHV transmission lines are summarized. Finally, designing a line of 765 kV single-circuit with 6 conductors per bundle based on existing standards is presented.

unknown authors

2012-01-01T23:59:59.000Z

404

Multistability in nonlinear left-handed transmission lines  

E-Print Network (OSTI)

Employing a nonlinear left-handed transmission line as a model system, we demonstrate experimentally the multi-stability phenomena predicted theoretically for microstructured left-handed metamaterials with a nonlinear response. We show that the bistability is associated with the period doubling which at higher power may result in chaotic dynamics of the transmission line.

Powell, David A; Kivshar, Yuri S

2008-01-01T23:59:59.000Z

405

Field Guide: Transmission Line Aerial Marking and Lighting  

Science Conference Proceedings (OSTI)

Electric transmission lines and wild birds must co-exist. Power lines traverse birds' flight routes, birds commonly roost on lines and poles, and birds make their nests—the largest of which weigh thousands of pounds—on transmission structures. Some avian activities can have deleterious effects on outdoor structures and transmission—for example, nests have been known to collapse and span critical clearances during storms, resulting in outages. Accordingly, it is important for ...

2013-11-22T23:59:59.000Z

406

Power Efficient Scheduling for Network Applications on Multicore Architecture  

E-Print Network (OSTI)

overhead due to shorter pipeline length. LATA, on the otherconsists of equal-length pipeline stages. In fact, Figure

Kuang, Jilong

2011-01-01T23:59:59.000Z

407

New Construction of Distribution Lines, Service Lines, and Appurtenant  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

New Construction of Distribution Lines, Service Lines, and New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Certain Visually Significant Resources Outside Residential Subdivisions (New York) New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Certain Visually Significant Resources Outside Residential Subdivisions (New York) < Back Eligibility Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State New York Program Type Environmental Regulations Provider New York State Public Service Commission Any proposed construction of distribution lines, service lines, and appurtenant facilities to electric utilities located near scenic areas of

408

2005 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE  

U.S. Energy Information Administration (EIA)

2010 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE. Kerosene. ... • Geothermal energy drilling company • Logging company •Privately owned port or loading dock

409

SPEAR3 Beam Line Availability  

NLE Websites -- All DOE Office Websites (Extended Search)

Beam Line Support | Floor Support | Administrative Support SPEAR3 Beam Line Availability Beam Line BL Type Technique(s) Status 1-4 X-ray Small and Wide Angle X-ray Scattering Open...

410

Power marketing and renewable energy  

SciTech Connect

Power marketing refers to wholesale and retail transactions of electric power made by companies other than public power entities and the regulated utilities that own the generation and distribution lines. The growth in power marketing has been a major development in the electric power industry during the last few years, and power marketers are expected to realize even more market opportunities as electric industry deregulation proceeds from wholesale competition to retail competition. This Topical Issues Brief examines the nature of the power marketing business and its relationship with renewable power. The information presented is based on interviews conducted with nine power marketing companies, which accounted for almost 54% of total power sales by power marketers in 1995. These interviews provided information on various viewpoints of power marketers, their experience with renewables, and their respective outlooks for including renewables in their resource portfolios. Some basic differences exist between wholesale and retail competition that should be recognized when discussing power marketing and renewable power. At the wholesale level, the majority of power marketers stress the commodity nature of electricity. The primary criteria for developing resource portfolios are the same as those of their wholesale customers: the cost and reliability of power supplies. At the retail level, electricity may be viewed as a product that includes value-added characteristics or services determined by customer preferences.

Fang, J.M.

1997-09-01T23:59:59.000Z

411

Utility Line Inspections and Audits  

Science Conference Proceedings (OSTI)

Utility Line Inspections and Audits provides utility engineers with a concise reference for the pros, cons, and how to related to performing various line inspections and audits.

2007-03-21T23:59:59.000Z

412

Instrumentation for Increased Power Flow  

Science Conference Proceedings (OSTI)

This report is the second Technical Update of the Instrumentation for Managing Increased Power Flow project, part of EPRI's Increased Power Flow (IPF) program. The project, initiated in 2006 and expected to continue for several years, studies the feasibility of new instrumentation to support increased power flow strategies. In 2007 the work focused on two primary developments: the Backscatter Sensor for the real-time measurement of transmission line temperature and current and the Emissivity Test Instrum...

2007-12-06T23:59:59.000Z

413

Definition: Line Transformer Monitors | Open Energy Information  

Open Energy Info (EERE)

Transformer Monitors Transformer Monitors Jump to: navigation, search Dictionary.png Line Transformer Monitors Transformer Monitoring System can monitor different aspects of transformers, including oil levels and multiple temperatures within the transformer. This allows for analysis of the health of either individual key power transformers or multiple power transformers networked in the system. For example, the transformer monitors provide transformer oil dissolved gas analysis (DGA), oil temperature, ambient temperature, and moisture in oil measurements. These measurements are made in relation to transformer load.[1] Related Terms transformer, system, transformer References ↑ https://www.smartgrid.gov/category/technology/line_transformer_monitors [[Cat LikeLike UnlikeLike You like this.Sign Up to see what your friends like.

414

Omega Transmission Lines  

E-Print Network (OSTI)

In this paper, we show how bi-anisotropic media with omega-type response can be realized using periodically loaded transmission lines. General conditions for the needed unit cell circuit block are derived. Also, an implementation is shown and analyzed.

Vehmas, Joni

2013-01-01T23:59:59.000Z

415

On line course organization  

Science Conference Proceedings (OSTI)

In order to help users access on-line materials with more specific questions, we build a learning portal named Fusion. First we develop Fusion-Crawler, a link classification focused crawler, to download potential course pages. We then use a binary classifier ... Keywords: focused crawling, learning object management, metadata extraction, ontology

Ming Zhang; Weichun Wang; Yi Zhou; Yu Yang; Yuhong Xiong; Xiaoming Li

2007-08-01T23:59:59.000Z

416

DC powerline communication system using a transmission line transformer for high degree of freedom applications  

E-Print Network (OSTI)

A new type of powerline communication is developed to reduce cable requirements for robotic, electromechanical, and vehicular systems. A DC power bus line connecting a DC power supply to motor drives and sensor units is ...

Wade, Eric R. (Eric Randolph), 1978-

2004-01-01T23:59:59.000Z

417

Distributive Subband Allocation, Power and Rate Control for Relay-Assisted OFDMA Cellular System with Imperfect System State Knowledge  

E-Print Network (OSTI)

In this paper, we consider distributive subband, power and rate allocation for a two-hop transmission in an orthogonal frequency-division multiple-access (OFDMA) cellular system with fixed relays which operate in decode-and-forward strategy. We take into account of system fairness by considering weighted sum goodput as our optimization objective. Based on the cluster-based architecture, we obtain a fast-converging distributive solution with only local imperfect CSIT by using decomposition of the optimization problem. To further reduce the signaling overhead and computational complexity, we propose a reduced feedback distributive solution, which can achieve asymptotically optimal performance for large number of users with arbitrarily small feedback overhead per user. We also derive asymptotic average system throughput for the relay-assisted OFDMA system so as to obtain useful design insights.

Cui, Ying; Wang, Rui

2009-01-01T23:59:59.000Z

418

Saguargo Solar Power Plant Solar Power Plant | Open Energy Information  

Open Energy Info (EERE)

Saguargo Solar Power Plant Solar Power Plant Saguargo Solar Power Plant Solar Power Plant Jump to: navigation, search Name Saguargo Solar Power Plant Solar Power Plant Facility Saguargo Solar Power Plant Sector Solar Facility Type Concentrating Solar Power Facility Status In Service Developer Solargenix Location Red Rock, Arizona Coordinates 32.54795°, -111.292887° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.54795,"lon":-111.292887,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

419

Flex power perspectives of indirect power system control through dynamic  

Open Energy Info (EERE)

Flex power perspectives of indirect power system control through dynamic Flex power perspectives of indirect power system control through dynamic power price (Smart Grid Project) Jump to: navigation, search Project Name Flex power perspectives of indirect power system control through dynamic power price Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

420

Anisotropy and Forming Limit Diagram Comparison of DC and CC ...  

Science Conference Proceedings (OSTI)

Presentation Title, Anisotropy and Forming Limit Diagram Comparison of DC and CC ... Advanced Experimental Grid Pattern Techniques Coupled with FE-analysis ... Effect of Exploitation Overhead Power Lines on the Evolution of Mechanical ...

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Evolution of Aluminum Can Stock Materials (1961-2011)  

Science Conference Proceedings (OSTI)

Anisotropy and Forming Limit Diagram Comparison of DC and CC 5xxx O Temper ... Advanced Experimental Grid Pattern Techniques Coupled with FE- analysis ... Effect of Exploitation Overhead Power Lines on the Evolution of Mechanical ...

422

OE Summary 2005-14  

NLE Websites -- All DOE Office Websites (Extended Search)

Inside This Issue U.S. Department of Energy Office of Environment, Safety and Health OE Summary 2005-14 November 16, 2005 * Dump truck severs overhead power lines .... 1 * Improper...

423

CX-008163: Categorical Exclusion Determination  

Energy.gov (U.S. Department of Energy (DOE))

Portland General Electric 13-Kilovolt Overhead Electrical Line Land Use Review Request CX(s) Applied: B4.9 Date: 03/28/2012 Location(s): Oregon Offices(s): Bonneville Power Administration

424

Design of the ILC RTML Extraction Lines  

SciTech Connect

The ILC [1] Damping Ring to the Main Linac beamline (RTML) contains three extraction lines (EL). Each EL can be used both for an emergency abort dumping of the beam and tune-up continual train-by-train extraction. Two of the extraction lines are located downstream of the first and second stages of the RTML bunch compressor, and must accept both compressed and uncompressed beam with energy spreads of 2.5% and 0.15%, respectively. In this paper we report on an optics design that allowed minimizing the length of the extraction lines while offsetting the beam dumps from the main line by the distance required for acceptable radiation levels in the service tunnel. The proposed extraction lines can accommodate beams with different energy spreads while at the same time providing the beam size acceptable for the aluminum dump window. The RTML incorporates three extraction lines, which can be used for either an emergency beam abort or for a train-by-train extraction. The first EL is located downstream of the Damping Ring extraction arc. The other two extraction lines are located downstream of each stage of the two-stage bunch compressor. The first extraction line (EL1) receives 5GeV beam with an 0.15% energy spread. The extraction line located downstream of the first stage of bunch compressor (ELBC1) receives both compressed and uncompressed beam, and therefore must accept beam with both 5 and 4.88GeV energy, and 0.15% and 2.5% energy spread, respectively. The extraction line located after the second stage of the bunch compressor (ELBC2) receives 15GeV beam with either 0.15 or 1.8% energy spread. Each of the three extraction lines is equipped with the 220kW aluminum ball dump, which corresponds to the power of the continuously dumped beam with 5GeV energy, i.e., the beam trains must be delivered to the ELBC2 dump at reduced repetition rate.

Seletskiy, S.; Tenenbaum, P.; Walz, D.; /SLAC; Solyak, N.; /Fermilab

2011-10-17T23:59:59.000Z

425

Stereoscopic 3D line drawing  

Science Conference Proceedings (OSTI)

This paper discusses stereoscopic 3D imaging based on line drawing of 3D shapes. We describe the major issues and challenges in generating stereoscopic 3D effects using lines only, with a couple of relatively simple approaches called each-eye-based and ... Keywords: binocular rivalry, line drawing, line stylization, non-photorealism, stereo coherence, stereoscopy

Yongjin Kim; Yunjin Lee; Henry Kang; Seungyong Lee

2013-07-01T23:59:59.000Z

426

Printed circuit dispersive transmission line  

DOE Patents (OSTI)

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

1991-08-27T23:59:59.000Z

427

Printed circuit dispersive transmission line  

DOE Patents (OSTI)

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other.

Ikezi, Hiroyuki (Rancho Santa Fe, CA); Lin-Liu, Yuh-Ren (San Diego, CA); DeGrassie, John S. (Encinitas, CA)

1991-01-01T23:59:59.000Z

428

Printed circuit dispersive transmission line  

DOE Patents (OSTI)

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission lines between two adjacent periodic intersections to be longer than the other. 5 figs.

Ikezi, Hiroyuki; Lin-Liu, Yuh-Ren; deGrassie, J.S.

1990-03-02T23:59:59.000Z

429

Drill string transmission line  

DOE Patents (OSTI)

A transmission line assembly for transmitting information along a downhole tool comprising a pin end, a box end, and a central bore traveling between the pin end and the box end, is disclosed in one embodiment of the invention as including a protective conduit. A transmission line is routed through the protective conduit. The protective conduit is routed through the central bore and the ends of the protective conduit are routed through channels formed in the pin end and box end of the downhole tool. The protective conduit is elastically forced into a spiral or other non-linear path along the interior surface of the central bore by compressing the protective conduit to a length within the downhole tool shorter than the protective conduit.

Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Bradford, Kline (Orem, UT); Fox, Joe (Spanish Fork, UT)

2006-03-28T23:59:59.000Z

430

PowerPoint Presentation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FACTS Control for Long- and Short- FACTS Control for Long- and Short- Term Energy Storage Mehdi Ferdowsi Missouri University of Science and Technology Funded by the Energy Storage Systems Program of the U.S. Department Of Energy (DOE/ESS) through Sandia National Laboratories (SNL). Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration, under contract DE-AC04-94AL85000. Issues * Short- and Long-Term Energy Storage * Storage Integration * Cyber Security 33 v v Transmission Line Generation FACTS Wind Power Energy Storage Solar Power Energy Storage FACTS Device Distributed Decisions Power Electronics Communications Sensing and monitoring Inputs Power Electronics

431

Western Area Power Administration  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

v*Zy- i , . v*Zy- i , . r ,v * -i S # Af [, (e- . - o -A tl }r- 0 v-" l^~4~S J l ^-)^ I^U^ck iM clti ^ Power Administration Follow-up to Nov. 25, 2008 Transition Meeting Undeveloped Transmission Right-of-Way Western has very little undeveloped transmission right-of-way. There is a 7-mile right- of-way between Folsom, CA and Roseville, CA where Western acquired a 250' wide right-of-way but is only using half of it. Another line could be built parallel to Western's line to relieve congestion in the Sacramento area. In addition, Western has rights-of- way for many transmission lines that could be rebuilt to increase transmission capacity. For example, Western's Tracy-Livermore 230-kV line is a single circuit line but the existing towers could support a double circuit line. These rights-of-way would have to

432

Cost Reduction Activities in France for Installing Cable: Mechanical Laying Techniques  

Science Conference Proceedings (OSTI)

In the past few decades, there has been increasing public objection to the undesirable visual impact of overhead power lines. Utilities face difficulties in obtaining authorization to build new overhead lines. This situation has led to the power industry's current interest in underground cable techniques. Buried insulated cable faces two difficulties, technical and economic, both depending on the level of voltage. At medium voltage (essentially 20 kilovolts), the optimization of cable systems, combined w...

2001-01-03T23:59:59.000Z

433

New Construction of Distribution Lines, Service Lines, and Appurtenant  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Construction of Distribution Lines, Service Lines, and Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Residential Subdivisions (New York) New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Residential Subdivisions (New York) < Back Eligibility Commercial Installer/Contractor Institutional Investor-Owned Utility Low-Income Residential Multi-Family Residential Municipal/Public Utility Residential Rural Electric Cooperative Schools Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Home Weatherization Water Buying & Making Electricity Solar Wind Program Info State New York Program Type Siting and Permitting Provider New York State Public Service Commission Any proposed construction of electricity-related facilities in residential

434

Delmarva Power Light Company Delmarva Power | Open Energy Information  

Open Energy Info (EERE)

Power Light Company Delmarva Power Power Light Company Delmarva Power Jump to: navigation, search Name Delmarva Power & Light Company (Delmarva Power) Place Wilmington, Delaware Zip 19886 Product Delmarva Power, a subsidiary of Pepco Holdings, is an electricity and natural gas provider. Coordinates 42.866922°, -72.868494° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.866922,"lon":-72.868494,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

435

SINGLE-FLUID TWO-REGION AQUEOUS HOMOGENEOUS REACTOR POWER PLANT CONCEPTUAL DESIGN AND FEASIBILITY STUDY. Final Report  

SciTech Connect

The feasibility of a 150 Mwe aqueous homogeneous nuclear power plant was investigated by a joint study team of the Nuclear Power Group and The Babcock & Wilcox Company. In this concept, the reactor is a single-fluid two-region design in which the fuel solution circulates through the thoria pellet blanket as the coolant. Componeats and plant arrangement were designed to provide maximum overhead accessibility for maintenance. All components in contact with reactor fuel at high pressure are themselves enclosed in close-fitting high-pressure containment envelopes. (auth)

1957-07-01T23:59:59.000Z

436

Kangley - Echo Lake Transmission Line Project, Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

STATEMENT STATEMENT Kangley-Echo Lake Transmission Line Project Final Environmental Impact Statement Responsible Agency: U.S. Department of Energy, Bonneville Power Administration (BPA) Cooperating Agency: U.S. Department of Agriculture, Forest Service (USFS) Title of Proposed Project: Kangley-Echo Lake Transmission Line Project State Involved: Washington Abstract: BPA is proposing to build a new transmission line to accommodate increasing demand for electricity and ensure reliability in the Puget Sound area. The Proposed Action would construct a new line that would connect to an existing transmis- sion line near the community of Kangley, and then connect with BPA's existing Echo Lake Substation. The major purpose of this proposal is to improve system reliability in the King County area. An outage on an existing line during times of heavy use, such as

437

EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild Project,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3: Estes to Flatiron Substation Transmission Lines Rebuild 3: Estes to Flatiron Substation Transmission Lines Rebuild Project, Larimer County, CO EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild Project, Larimer County, CO SUMMARY DOE's Western Area Power Administration (Western) owns and operates two 16-mile, 115-kilovolt transmission lines on separate rights-of-way between Flatiron Reservoir (near Loveland, Colorado) and the town of Estes Park, Colorado. Western is preparing this EIS to evaluate the environmental impacts of a proposal to upgrade and co-locate these transmission lines, by removing one and abandoning its right-of-way, and rebuilding the other along the existing right-of-way as a double-circuit line (i.e., six conductors per pole). The USDA Forest Service, Arapaho and Roosevelt National Forest, is a cooperating agency in preparing the EIS to support

438

EA-1960: Townsite Solar Project Transmission Line, Clark County, Nevada |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

60: Townsite Solar Project Transmission Line, Clark County, 60: Townsite Solar Project Transmission Line, Clark County, Nevada EA-1960: Townsite Solar Project Transmission Line, Clark County, Nevada SUMMARY The Bureau of Land Management, with Western Area Power Administration as a cooperating agency, prepared an EA to evaluate potential impacts of a proposal to build and operate a 180-MW photovoltaic facility; a 220, 230, or 500 kV transmission line; and associated facilities in Clark County, Nevada. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD October 28, 2013 EA-1960: Finding of No Significant Impact Townsite Solar Project Transmission Line, Clark County, Nevada June 28, 2013 EA-1960: Final Environmental Assessment Townsite Solar Project Transmission Line, Clark County, Nevada

439

New Jersey Solar Power LLC NJ Solar Power | Open Energy Information  

Open Energy Info (EERE)

Solar Power LLC NJ Solar Power Solar Power LLC NJ Solar Power Jump to: navigation, search Name New Jersey Solar Power LLC (NJ Solar Power) Place New Jersey Sector Solar Product A photovoltaic engineering firm which offers and installs a complete line of solar electric products for residential, commercial, and institutional customers. References New Jersey Solar Power LLC (NJ Solar Power)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. New Jersey Solar Power LLC (NJ Solar Power) is a company located in New Jersey . References ↑ "New Jersey Solar Power LLC (NJ Solar Power)" Retrieved from "http://en.openei.org/w/index.php?title=New_Jersey_Solar_Power_LLC_NJ_Solar_Power&oldid=349171

440

Formal derivation of optimal active shielding for low-power on-chip buses  

Science Conference Proceedings (OSTI)

Passive shielding has been used to reduce capacitive coupling effects of adjacent bus lines by inserting passive ground or power lines (shields) between the bus lines. Active shielding is another shielding technique, in which the shield is allowed to ...

M. Ghonemia; Y. Ismail

2004-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Loss of line shutdown for line-commutated utility-interactive inverter  

SciTech Connect

The line-commutated, single-phase, utility-interactive inverter has been used in utility-connected photovoltaic (PV) and wind energy systems because it is commercially available at an attractive price. If unity power factor operation is required, a shunt capacitor can be used. This causes a problem if the utility line is disconnected; the inverter can continue to run and can thus be a hazard. This can be solved by using a fast-acting overvoltage detection circuit which operates directly on the inverter control electronics.

Landsman, E.E.

1981-03-01T23:59:59.000Z

442

New baseload power plants  

Science Conference Proceedings (OSTI)

This is a tabulation of the results of this magazines survey of current plans for new baseload power plants. The table lists the unit name, capacity, fuel, engineering firm, constructor, suppliers for steam generator, turbine generator and flue gas desulfurization equipment, date due on-line, and any non-utility participants. The table includes fossil-fuel plants, nuclear plants, geothermal, biomass and hydroelectric plants.

Not Available

1993-04-01T23:59:59.000Z

443

Commercial Lining Products  

Science Conference Proceedings (OSTI)

Table 1   Comparative ranking of rubber lining materials...Heat Oxidation Ultraviolet Abrasion Weathering Oil Motor fuels Acid Alkali Flame Natural rubber NR 5 4 4 4 4 6 6 3 3 6 Styrene-butadiene SBR 4 3 3 2 4 5 6 3 3 6 Nitrile NBR 3 3 3 2 3 1 6 4 4 6 Chloroprene CR 2 2 2 3 2 2 3 1 2 2 Chlorosulfonylpolyethylene CSM 2 2 2 3 2 2 2 2 2 3 Isobutylene-isoprene...

444

2005 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE  

U.S. Energy Information Administration (EIA)

Electric power generation company (includes combined heat and power plants) that Farm Use: 36 . 37 . 38 ... Secure File Transfer option available at:

445

Frequency-Bias Tie-Line Control of Hydroelectric  

E-Print Network (OSTI)

In this work I have tried to apply effective dedicated online control systems to two equal power systems connected by a long distance tie-line. When large interconnected systems are linked electrically to others by means of tie-lines, the power transfers between them are usually decided by mutual agreement and the power is controlled by regulators. Other side it is a desired feature to achieve a better frequency constancy, which has been obtained by a controller, which is being activated by frequency-bias constant. A power frequency characteristic also has been maintained approximately straight line by governor speed regulation parameter in case any perturbation in frequency is caused by load change in any one of the area.To maintain the real power flow and single frequency in tie-line power system, the governor has been manipulated by Automatic Generation Control (AGC) action. For this works various, integral (I) proportional plus integral (PI) and proportional plus integral plus derivative (PID) controllers have been tried.

Generating Stations For

2003-01-01T23:59:59.000Z

446

Broadband Over Power Lines (BPL) Simplified Emissions and Immunity Testing  

Science Conference Proceedings (OSTI)

The FCC Report & Order 04-245 calls out procedures for Certification testing of BPL components, which is required of BPL equipment manufacturers in order to sell their products. The test procedures for this Certification testing are contained in EPRI Technical Update 1011663. The FCC Certification testing regime is rather complicated to use for simply validating that the field strength is below the legal limits. A simplified emissions test procedure for field strength was needed for utilities to assure t...

2006-09-26T23:59:59.000Z

447

Forced cooling of underground electric power transmission lines : design manual  

E-Print Network (OSTI)

The methodology utilized for the design of a forced-cooled pipe-type underground transmission system is presented. The material is divided into three major parts: (1) The Forced-cooled Pipe-Type Underground Transmission ...

Brown, Jay A.

1978-01-01T23:59:59.000Z

448

Nanoscale SRAM Variability and Optimization  

E-Print Network (OSTI)

area overhead required for short read bit-lines, dual word-word-line samplers contribute to a 16% array area overhead.bit-lines. Although this requires more area overhead, this

Toh, Seng Oon

2011-01-01T23:59:59.000Z

449

Secretary Chu Thanks Utility Staff and Line Workers For Their Efforts to  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Thanks Utility Staff and Line Workers For Their Thanks Utility Staff and Line Workers For Their Efforts to Restore Power in the Wake of Hurricane Sandy Secretary Chu Thanks Utility Staff and Line Workers For Their Efforts to Restore Power in the Wake of Hurricane Sandy November 2, 2012 - 11:32am Addthis Secretary Chu meets with Pepco line workers in Maryland on November 1, 2012. | Photo by Sarah Gerrity Secretary Chu meets with Pepco line workers in Maryland on November 1, 2012. | Photo by Sarah Gerrity Jen Stutsman Press Secretary, Office of Public Affairs What are the key facts? Utility companies have deployed 64,000 linemen and utility staff to the front lines to repair downed power lines and bring electricity back online. As they finish up in one area, workers move on to continue assisting other areas still recovering from the storm.

450

Strong Lines of Mercury ( Hg )  

Science Conference Proceedings (OSTI)

... Mercury (Hg) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Mercury ( Hg ). ...

451

Strong Lines of Plutonium ( Pu )  

Science Conference Proceedings (OSTI)

... Plutonium (Pu) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Plutonium ( Pu ). ...

452

Strong Lines of Tungsten ( W )  

Science Conference Proceedings (OSTI)

... Tungsten (W) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Tungsten ( W ). ...

453

Strong Lines of Hydrogen ( H )  

Science Conference Proceedings (OSTI)

... Hydrogen (H) Homepage - Introduction Finding list Select element by name. Select element by atomic number. ... Strong Lines of Hydrogen ( H ). ...

454

U.S. Department of Energy Southwestern Power Administration  

NLE Websites -- All DOE Office Websites (Extended Search)

Line 3010 Structure 38-44, 59 and 60 Transmission Structure Movement Project Program or Field Office: Southwestern Power Administration Location(s) (CityCountyState): Jonesboro,...

455

ORNL and SuperPower Sign Superconducting Wire Agreement  

for more efficient transmission of electricity. ... line networks; and increase power-transmission capacity. Second-generation (2G) wires made by

456

Federal Power Act section 202(c) - Hurricane Rita, September...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

order was issued authorizing CenterPoint Energy to temporarily connect electricity lines to restore power to Entergy Gulf States, Inc., as well as electric cooperatives and...

457

Federal Power Act section 202(c) - Hurricane Ike, September 2008...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

order was issued authorizing CenterPoint Energy to temporarily connect electricity lines to restore power to Entergy Gulf States, Inc., as well as electric cooperatives and...

458

Energy Department and Federal Efforts to Support Utility Power...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

currently repairing power lines across the Mid-Atlantic in the aftermath of Hurricane Sandy. | Photo courtesy of the Energy Department 58,000 workers are currently repairing...

459

Power Electronics  

Energy.gov (U.S. Department of Energy (DOE))

Power electronics (PE) play a critical role in transforming the current electric grid into the next-generation grid.  PE enable utilities to deliver power to their customers effectively while...

460

An In-Line Power Monitor for HE_11 Low Loss Transmission Lines (A24757)  

E-Print Network (OSTI)

Proc. Of 29th Int. Conf. On Infrared And Millimeter Waves And 12th Int. Conf. On Terahertz Elecronics, Karlsruhe, Germany, 2004, To Be Published29th International Conference on Infrared and Millimeter Waves Karlsruhe, DE, 2004999610190

Callis, R.W.

2004-06-23T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Power Supplies  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 5 Typical medium-frequency induction power supply incorporating (a) a parallel inverter and (b) a series inverter...

462

Transmission Line Fault Inspection and Root Cause Analysis Approach  

Science Conference Proceedings (OSTI)

Transmission lines are designed to transfer electric power from source locations, sometimes over great distances through different terrains and exposed to several influences. These challenges include faulty equipment, misoperation, human errors, and aging of components, as well as meteorological and ecological factors such as storms, lightning, and the effects of plants and animals. A number of techniques are currently used to isolate the faulting line and provide the fault position. Sustained or ...

2013-12-20T23:59:59.000Z

463

Measured Breakdown Voltage and Leakage Current of Line Worker Boots  

Science Conference Proceedings (OSTI)

Worker safety is every electric power company's number one priority. Denergized line maintenance is an important task to ensure reliable operation of a transmission line. The grounding installed during this operation must be designed to shunt any unforeseen fault current and prevent electric shock and any associated consequences. The research described in this report describes electrical characteristics of work shoes, which comprise an important part of a model for minimizing hazardous outcomes.

2009-11-02T23:59:59.000Z

464

Transmission Line Fault Inspection and Root Cause Analysis Approach  

Science Conference Proceedings (OSTI)

Transmission lines are designed to transfer electric power from source locations sometimes over great distances through different terrains and exposed to several influences. These challenges include faulty equipment, misoperation, human errors, and aging of components, and meteorological and ecological factors such as storms, lightning, and the effects of plants and animals. A number of techniques are currently used to isolate the faulting line and provide the fault position. Sustained or permanent ...

2012-12-20T23:59:59.000Z

465

Electricity for road transport, flexible power systems and wind power  

Open Energy Info (EERE)

road transport, flexible power systems and wind power road transport, flexible power systems and wind power (Smart Grid Project) Jump to: navigation, search Project Name Electricity for road transport, flexible power systems and wind power Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

466

Power supply  

DOE Patents (OSTI)

A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.

Yakymyshyn, Christopher Paul (Seminole, FL); Hamilton, Pamela Jane (Seminole, FL); Brubaker, Michael Allen (Loveland, CO)

2007-12-04T23:59:59.000Z

467

On powers as sums of two cubes - CECM  

E-Print Network (OSTI)

Let l be an odd prime, let A be a non-zero, 2l-th power free integer prime to l and let. C be the .... We use that fourth powers are squares. ...... of the projective line.

468

Detecting lacunary perfect powers and computing their roots. - CECM  

E-Print Network (OSTI)

Jan 13, 2009 ... polynomial f is a perfect power, that is, f = hr for some other .... address the powerful generality of straight-line programs, but do avoid the ...

469

Investigation of Geomagnetically Induced Currents in the Proposed Winnipeg-Duluth-Twin Cities 500-kV Transmission Line  

Science Conference Proceedings (OSTI)

The effects of geomagnetically induced currents (GIC) on a new 749-km, 500-kV ac transmission line were investigated. GIC effects on the operation of the line, equipment connected directly to the line, and power systems connected to the line were considered. The study concluded that GIC can have a substantial impact on equipment performance and on the power system. Potentially troublesome equipment and system conditions (both steady-state and transient) were identified.

1981-07-01T23:59:59.000Z

470

Line focus systems.  

DOE Green Energy (OSTI)

Improving the thermal performance of a trough plant will lower the LCOE: (1) Improve mirror alignment using the TOPCAT system - Current - increase optical intercept of existing trough solar power plants, Future - allows larger apertures with same receiver size in new trough solar power plants, and Increased concentration ratios/collection efficiencies & economies of scale; and (2) Improve tracking using a closed loop tracking system - Open loop tracking currently used own experience and from industry show need for a improved method. Performance testing of a Trough module and/or receiver on the rotating platform: (1) Installed costs of a trough plant are high. A significant portion of this is the material and assembly cost of the trough module. These costs need to be reduced without sacrificing performance; and (2) New receiver coatings with lower heat loss and higher absorbtivity. TOPCAT system is an optical evaluation tool for parabolic trough solar collectors. Aspects of the TOPCAT system are: (1) Practical, rapid, and cost effective; (2) Inherently aligns mirrors to the receiver of an entire solar collector array (SCA); (3) Can be used for existing installations -no equivalent tool exits; (4) Can be used during production; (5) Currently can be used on LS-2 or LS-3 configurations, but can be easily modified for any configuration; and (6)Generally, one time use.

Moss, Timothy A.

2010-05-01T23:59:59.000Z

471

Xtreme Power | Open Energy Information  

Open Energy Info (EERE)

Power Power Jump to: navigation, search Name Xtreme Power Place Kyle, Texas Zip 78640 Product Xtreme Power designs and manufactures power systems using power electronics and efficient storage technologies. Coordinates 29.98837°, -97.877369° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":29.98837,"lon":-97.877369,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

472

On Lacunary Polynomial Perfect Powers - CECM  

E-Print Network (OSTI)

Jul 23, 2008 ... or lacunary polynomial f is a perfect power, that is, f = hr for some other .... polynomial in the size of the straight-line program for f, and.

473

NNSA's Second Line of Defense Program Receives Capability Award |  

NLE Websites -- All DOE Office Websites (Extended Search)

Second Line of Defense Program Receives Capability Award | Second Line of Defense Program Receives Capability Award | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > NNSA's Second Line of Defense Program Receives ... NNSA's Second Line of Defense Program Receives Capability Award Posted By Office of Public Affairs NNSA's Second Line of Defense (SLD) was awarded the 2013 Non-Conventional

474

Second Line of Defense Program | National Nuclear Security Administration  

NLE Websites -- All DOE Office Websites (Extended Search)

Line of Defense Program | National Nuclear Security Administration Line of Defense Program | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Second Line of Defense Program Home > About Us > Our Programs > Nonproliferation > International Materials Protection and Cooperation > Second Line of Defense Program Second Line of Defense Program In April 2009, President Obama called the danger of a terrorist acquiring

475

Second Line of Defense Program | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Line of Defense Program | National Nuclear Security Administration Line of Defense Program | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Second Line of Defense Program Home > About Us > Our Programs > Nonproliferation > International Materials Protection and Cooperation > Second Line of Defense Program Second Line of Defense Program In April 2009, President Obama called the danger of a terrorist acquiring

476

On-line Monitoring [Laser Applications Laboratory] - Nuclear Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

On-line Monitoring On-line Monitoring Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory On-line Monitoring Project description: On-line process monitoring for laser-beam welding. Category: Project with industrial partner (USCAR) Bookmark and Share Simulated defects and associated responses from a weld sensor developed at Argonne

477

Spectral Line Removal in the LIGO Data Analysis System (LDAS)  

E-Print Network (OSTI)

High power in narrow frequency bands, spectral lines, are a feature of an interferometric gravitational wave detector's output. Some lines are coherent between interferometers, in particular, the 2 km and 4 km LIGO Hanford instruments. This is of concern to data analysis techniques, such as the stochastic background search, that use correlations between instruments to detect gravitational radiation. Several techniques of `line removal' have been proposed. Where a line is attributable to a measurable environmental disturbance, a simple linear model may be fitted to predict, and subsequently subtract away, that line. This technique has been implemented (as the command oelslr) in the LIGO Data Analysis System (LDAS). We demonstrate its application to LIGO S1 data.

Antony C. Searle; Susan M. Scott; David E. McClelland

2003-08-09T23:59:59.000Z

478

Corona losses dependence from the conductor diameter  

Science Conference Proceedings (OSTI)

This paper presents possibility to decrease the corona power losses in overhead transmission lines. Corona power losses can be reduced by increasing the diameter of the conductor and used bundled conductors per phase. The objectives were to determine ... Keywords: corona model, critical disruptive voltage, electric discharge, electric field, power losses, transmission line

Isuf Krasniqi; Vjollca Komoni; Avni Alidemaj; Gazmend Kabashi

2011-10-01T23:59:59.000Z

479

EC Transmission Line Materials  

SciTech Connect

The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

Bigelow, Tim S [ORNL

2012-05-01T23:59:59.000Z

480

PROCEEDINGS OF THE THIRD BERKELEY WORKSHOP ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS  

E-Print Network (OSTI)

throughput and line utilization include overhead (i,e,overhead is application dependent, and a simulation model (perhaps along the lines

Authors, Various

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "overhead power lines" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Optimization and Performance Modeling of Stencil Computations on Modern Microprocessors  

E-Print Network (OSTI)

cache line from main memory requires a higher overhead (C fcache line from main memory, C f irst , by the overhead of

Datta, Kaushik

2009-01-01T23:59:59.000Z

482

PROCEEDINGS OF FOURTH BERKELEY CONFERENCE ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS.  

E-Print Network (OSTI)

H. Opderbeck "A Study of Line Overhead in the ARPANET"overhead software, an important consideration in memory limited microprocessors. The logic design of the line

Hall, Dennis

2011-01-01T23:59:59.000Z

483

PROCEEDINGS OF THE FIFTH BERKELEY WORKSHOP ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS  

E-Print Network (OSTI)

Opderbeck, "A study of line overhead in the ARPANET," Comm.features [2]: the line overhead is less than one percent and

Johnson, R.R.

2011-01-01T23:59:59.000Z

484

A Debugging System for Sensor Networks  

E-Print Network (OSTI)

more to the left a line is the less overhead, and the morevertical a line is the less overhead. As expected, the 9

Nithya Ramanathan; Kevin Chang; Rahul Kapur; Lewis Girod; Eddie Kohler; Deborah Estrin

2005-01-01T23:59:59.000Z

485

2005 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE  

U.S. Energy Information Administration (EIA) Indexed Site

Page 1 Page 1 2012 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE Kerosene Line No. Sold directly to consumers for: 1 Residential Use (Non-Farm): * Backup generator * Home heating and cooking * Personal lawn equipment * EXCLUDE: Apartment buildings and Farmhouses 2 Commercial Use: * Apartment building * Bank * Casino * Church * College/School/Institution * Department/Retail store * Environmental clean-up service * Flushing fuel lines * Forestry service * Golf course * Government (Federal, State, local, and district; INCLUDE fuel used in vehicles) * Hazardous waste company * Hospital * Hotel/Motel * Landfill site government owned * Landscaping * Laundry company * Lumber yard that sells the lumber * Medical service * Port Authority/publicly owned port or loading dock

486

A reactor core on-line monitoring program - COMP  

Science Conference Proceedings (OSTI)

A program named COMP is developed for on-line monitoring PWRs' in-core power distribution in this paper. Harmonics expansion method is used in COMP. The Unit 1 reactor of Daya Bay Nuclear Power Plant (Daya Bay NPP) in China is considered for verification. The numerical results show that the maximum relative error between measurement and reconstruction results from COMP is less than 5%, and the computing time is short, indicating that COMP is capable for online monitoring PWRs. (authors)

Wang, C. [State Nuclear Power Software Development Center, Beijing, 100029 (China); School of Nuclear Science and Technology, Xi'an Jiaotong Univ. (China); Building 1, Compound No.29, North Third Ring Road, Xicheng District, Beijing, 100029 (China); Wu, H.; Cao, L. [School of Nuclear Science and Technology, Xi'an Jiaotong Univ. (China)

2012-07-01T23:59:59.000Z

487

On-Line Monitoring Diagnostic Analysis for Emergency Diesel Generators  

Science Conference Proceedings (OSTI)

Through its Light Water Reactor Sustainability Program, Idaho National Laboratory (INL) is conducting research to develop and demonstrate the on-line monitoring capabilities of active components in existing nuclear power plants. A pilot project is currently underway to apply these capabilities to generator step-up transformers (GSUs) and emergency diesel generators (EDGs). INL and the Electric Power Research Institute (EPRI) are working together to implement the pilot project. The EPRI Fleetwide ...

2013-05-24T23:59:59.000Z

488

Putting Economic Power In Distributed Power t  

U.S. Energy Information Administration (EIA)

Putting Economic Power in Distributed Power. A distributed electricity generation system, often called distributed power, usually consists of ...

489

Northern States Power Co - Minnesota (North Dakota) | Open Energy  

Open Energy Info (EERE)

3781 3781 References EIA Form EIA-861 Final Data File for 2010 - File2_2010[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png D01 Residential Overhead Standard Residential D02 R