Circuit interrupter with ground fault trip control

Details Circuit interrupter with ground fault trip control Circuit interrupter with ground fault trip control

1975-04-29

1976-05-25

Envall, Jr., R. N.

317 36TD, 317 33SC, H02H 308

Patent

active

039596958

ABSTRACT:
A circuit interrupter having an associated control system which senses overload current or ground fault current and causes an appropriate tripping of the circuit interrupter. Tripping energy for causing the circuit interrupter to open under a normal fault condition is derived from the fault current itself. In addition, tripping energy for causing the circuit interrupter to open due to a ground fault condition is derived from the ground fault current.

REFERENCES:
patent: 3713005 (1973-01-01), Engel
patent: 3786311 (1974-01-01), Hobson, Jr. et al.
patent: 3818275 (1974-06-01), Shimp
patent: 3846675 (1974-11-01), Shimp
patent: 3851216 (1974-11-01), Clarke et al.

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