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Publication numberUST967008 I4
Publication typeGrant
Application numberUS 05/785,380
Publication dateFeb 7, 1978
Filing dateApr 7, 1977
Priority dateJan 12, 1975
Publication number05785380, 785380, US T967008 I4, US T967008I4, US-I4-T967008, UST967008 I4, UST967008I4
InventorsAndrew S. Sweetana, Jr., Frederick J. Brown, Gerald B. Boyette
Original AssigneeWestinghouse Electric Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Capacitive voltage transformer with improved ferroresonance protection device
US T967008 I4
a coupling capacitor protection device with a voltage limiter connected across the tap capacitor feeding the induction transformer primary winding. The suppressor is a ceramic oxide nonlinear resistor changing from high to low resistance, thereby limiting the tap voltage to less than that at which the induction transformer core saturates in order to minimize ferroresonance in the circuit. Also, the limiter gives voltage protection to the tap capacitor circuit.
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6560128 *Feb 12, 1999May 6, 2003Satcon Power Systems Canada Ltd.Ferroresonance-suppressing static transfer switch
U.S. Classification361/38, 323/306, 361/17
International ClassificationH02M5/08, G05F3/06
Cooperative ClassificationH02M5/08, G05F3/06
European ClassificationH02M5/08, G05F3/06