Ground fault voltage limiting for a locomotive electric traction

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

1985-03-18

1986-08-26

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

361 42, 361 72, 318434, H02H 708

Patent

active

046086196

ABSTRACT:
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.

REFERENCES:
patent: 4495450 (1985-01-01), Tokizaki et al.

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