Ground fault desensitization circuit for electronic breaker

Details Ground fault desensitization circuit for electronic breaker Ground fault desensitization circuit for electronic breaker

1983-05-09

1985-08-27

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 96, H02H 316

Patent

active

045381941

ABSTRACT:
A desensitizing circuit for the electronic fault sensing system of high amperage molded case circuit breaker to prevent a ground fault signal from tripping the breaker in the event of current transformer saturation or the response of a downstream breaker to the ground fault signal.

REFERENCES:
patent: 3786311 (1974-01-01), Hobson, Jr. et al.
patent: 3976918 (1976-08-01), Clark
patent: 4268885 (1981-05-01), Williams
patent: 4377836 (1983-03-01), Elms et al.
patent: 4420721 (1983-12-01), Dorey et al.

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