Circuit breaker remote close and charged signalling apparatus

Details Circuit breaker remote close and charged signalling apparatus Circuit breaker remote close and charged signalling apparatus

1978-04-19

1979-09-04

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 13, 340638, H01H 7312, H01H 7314

Patent

active

041669894

ABSTRACT:
A circuit breaker is provided with a hook operating to hold the breaker movable contacts open against the bias of charged mechanism springs. The hook is selectively actuated by a closing solenoid to release the contacts for abrupt closure under the urgence of the mechanism springs. An indicator is appropriately positioned under the joint control of the breaker mechanism and movable contacts to identify OFF, charged and ON breaker conditions and to, in turn, control an actuating lever for a switch operating in an external charged signalling and closing solenoid circuit.

REFERENCES:
patent: 3955162 (1976-05-01), Nicol
patent: 3973230 (1976-08-01), Ciarcia et al.
patent: 4056816 (1977-11-01), Guim
patent: 4121077 (1978-10-01), Mrenna et al.
patent: 4128750 (1978-12-01), Castonguay et al.

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