Electricity: electrical systems and devices – Safety and protection of systems and devices – Generator protective circuits
Patent
1995-03-09
1995-09-26
Wong, Peter S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Generator protective circuits
363 53, 363102, 361 86, 322 59, 322 61, H02H 706
Patent
active
054539013
ABSTRACT:
Loss of excitation and control and subsequent damage to exciter windings in an excitation system for dynamoelectric machines wherein one or more rotating diodes fail in a shorted mode is prevented through the use of an RC circuit for detecting AC voltages in an exciter field winding for the purpose of directly operating a circuit breaker to remove excitation to the field windings and supply or to activate a timer for such purposes while temporarily shorting the AC current through the exciter field winding.
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Berhane Adolf
General Electric Co.
Wong Peter S.
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