- Patent Title: Systems and methods for detecting turn-to-turn faults in windings
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Application No.: US15040549Application Date: 2016-02-10
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Publication No.: US09726706B1Publication Date: 2017-08-08
- Inventor: Zhiying Zhang , Sarasij Das , Tarlochan Sidhu , Mohammad Reza Dadash Zadeh
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Eversheds-Sutherland (US) LLP
- Main IPC: G01R31/02
- IPC: G01R31/02 ; H02H3/16 ; H02H7/04 ; H02H7/045

Abstract:
System and method for detecting turn-to-turn faults in one or more windings of various objects are provided. In one implementation, a fault detector receives a set of current measurements associated with a transformer and uses these measurements to execute a procedure for detecting a turn-to-turn fault in the transformer. The procedure can include dividing a steady-state differential current value by a steady-state voltage value to obtain one or more compensating factors, determining a magnetizing current amplitude indicator by multiplying the steady-state voltage value by the one or more compensating factors, determining a compensated differential current value by combining the steady-state differential current value with a modifier value that incorporates the magnetizing current amplitude indicator, comparing the compensated differential current value against a threshold value, and declaring an occurrence of the turn-to-turn fault in the transformer when the compensated differential current value exceeds the threshold value.
Public/Granted literature
- US20170227591A1 SYSTEMS AND METHODS FOR DETECTING TURN-TO-TURN FAULTS IN WINDINGS Public/Granted day:2017-08-10
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