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Title: Sensor, method and system of monitoring transmission lines

Abstract

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.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Promethean Devices LLC (Fort Mill, SC)
Sponsoring Org.:
USDOE
OSTI Identifier:
1079463
Patent Number(s):
8280652
Application Number:
12/396,756
Assignee:
Promethean Devices LLC (Fort Mill, SC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
FG02-05ER84159
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Syracuse, Steven J., Clark, Roy, Halverson, Peter G., Tesche, Frederick M., and Barlow, Charles V. Sensor, method and system of monitoring transmission lines. United States: N. p., 2012. Web.
Syracuse, Steven J., Clark, Roy, Halverson, Peter G., Tesche, Frederick M., & Barlow, Charles V. Sensor, method and system of monitoring transmission lines. United States.
Syracuse, Steven J., Clark, Roy, Halverson, Peter G., Tesche, Frederick M., and Barlow, Charles V. Tue . "Sensor, method and system of monitoring transmission lines". United States. https://www.osti.gov/servlets/purl/1079463.
@article{osti_1079463,
title = {Sensor, method and system of monitoring transmission lines},
author = {Syracuse, Steven J. and Clark, Roy and Halverson, Peter G. and Tesche, Frederick M. and Barlow, Charles V.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {10}
}

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Works referenced in this record:

Experimental Verification of a Real-Time Program for the Determination of Temperature and SAG of Overhead Lines
journal, July 1983


On the image representation of the quasi-static fields of a line current source above the ground
journal, December 1969


Effects of conductor sag on spatial distribution of power line magnetic field
journal, July 1996


Accurate ampacity determination: temperature-sag model for operational real time ratings
journal, July 1995