Ground fault voltage limiting for a locomotive electric...

Details Ground fault voltage limiting for a locomotive electric... Ground fault voltage limiting for a locomotive electric...

H - Electricity

02

H

342/12, 342/34.1

H02H 7/08 (2006.01) B60L 3/00 (2006.01) H02H 3/16 (2006.01)

Patent

CA 1246188

D-9333 C-3693 GROUND FAULT VOLTAGE LIMITING FOR A LOCOMOTIVE ELECTRIC TRACTION MOTOR Abstract of the Disclosure The traction motors of a locomotive are voltage limited to a variable extent to permit continued motor operation following the occurrence of moisture induced ground faulting. The heat generated by the continued motor operation dries the moisture which induced the ground faulting, and the voltage limit is progressively increased toward a normal level for each specified period of motor operation with no ground faulting.

500746

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