Current responsive devices for synchronous generators

Title: Current responsive devices for synchronous generators

Full Record
Other Related Research

Abstract

A device for detecting current imbalance between phases of a polyphase alternating current generator. A detector responds to the maximum peak current in the generator, and detecting means generates an output for each phase proportional to the peak current of each phase. Comparing means generates an output when the maximum peak current exceeds the phase peak current. 11 figs.

Inventors:: Karlicek, R.F.

Issue Date:: 1983-09-27

OSTI Identifier:: 7261486

Patent Number(s):: 4406984 A

Application Number:: PPN: US 6-366873

Assignee:: Southern California Edison Co., Rosemead, CA (United States) PTO; EDB-94-122343

DOE Contract Number:: FG03-79SF10558

Resource Type:: Patent

Resource Relation:: Patent File Date: 9 Apr 1982

Country of Publication:: United States

Language:: English

Subject:: 20 FOSSIL-FUELED POWER PLANTS; ELECTRIC GENERATORS; CONTROL; ALTERNATING CURRENT; ELECTRIC CURRENTS; EQUIPMENT PROTECTION DEVICES; CURRENTS; 200104* - Fossil-Fueled Power Plants- Components

Citation Formats


                    Karlicek, R.F. Current responsive devices for synchronous generators.  United States: N. p., 1983. 
        Web.

Copy to clipboard


                    Karlicek, R.F. Current responsive devices for synchronous generators.  United States.

Copy to clipboard


                    Karlicek, R.F. Tue .  
        "Current responsive devices for synchronous generators".  United States.

Copy to clipboard


                    
@article{osti_7261486,

  title        = {Current responsive devices for synchronous generators},

  author       = {Karlicek, R.F.},

  abstractNote = {A device for detecting current imbalance between phases of a polyphase alternating current generator. A detector responds to the maximum peak current in the generator, and detecting means generates an output for each phase proportional to the peak current of each phase. Comparing means generates an output when the maximum peak current exceeds the phase peak current. 11 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1983},

  month        = {9}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

Current responsive devices for synchronous generators

Patent Karlicek, Robert F. (Fullerton, CA)

A device for detecting current imbalance between phases of a polyphase alternating current generator. A detector responds to the maximum peak current in the generator, and detecting means generates an output for each phase proportional to the peak current of each phase. Comparing means generates an output when the maximum peak current exceeds the phase peak current.
Full Text Available
Output-responsive field control for wind-driven alternators and generators

Patent Soderholm, L.H.

The field voltage of a wind-driven alternator or generator is automatically controlled in response to the output voltage developed in the load with the objective of always maintaining the maximum power output. In this manner, the tip-speed/wind-speed ratio is indirectly maintained at an optimum constant value, thereby optimizing the performance of the machine without the need to continuously and precisely monitor the wind speed and rotational speed.
Frequency regulator for synchronous generators

Patent Karlicek, R.F.

The present invention is directed to a novel frequency regulator which controls a generator output frequency for variations in both the input power to the generator and the power supplied to an uncontrolled external load. The present invention further includes over current and current balance protection devices which are relatively inexpensive to manufacture, which may be encapsulated to provide protection from the operating environment and which respond more quickly than previously known electromechanical devices. 11 figs.
Shorting contacts for closing a superconducting current path operated by a bellows arrangement responsive to the pressure of a cryogenic medium used in cooling the contacts

Patent Marsing, H.; Parsch, C.P.; Franksen, H.

A shorting element is described for closing a superconducting current path using contacts of a stabilized superconductor material with the contacts being brought together through the use of a mechanical actuating device, in which the contact surfaces of the contact elements are brought into contact using a pneumatic and/or hydraulic means operated by a pressure medium fed into the interior of at least one spring bellows. The shorting element, which is particularly useful in shorting superconducting magnets, is of a simple design, operationally reliable, and results in small coolant losses from the addition of heat through the shorting element.
Well installation in which electrical current is supplied for a source at the wellhead to an electrically responsive device located a substantial distance below the wellhead

Patent Akkerman, N.H.; Dewey, D.O.

This patent describes a well installation. It comprises: a wellhead including a casing head and a tubing head above the casing head, casing extending downwardly from the casing head into the well bore, tubing suspended from the tubing head and extending downwardly within the casing, valve means including a closure member moveable within the tubing for opening and closing the tubing a substantial distance beneath the wellhead, means urging the closure member toward closed position, a latch which is movable to and maintained in a position holding the closure member in open position, in response to the supply of electricalmore »« less

Similar Records