Circuit breaker

Details Circuit breaker Circuit breaker

1974-11-04

1976-03-23

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200145, 200148F, H01H 3388

Patent

active

039461840

ABSTRACT:
A circuit breaker having a pair of circuit breaking units electrically insulated from ground by supporting means of electrical insulator, an actuator disposed on ground, and an actuating force transmission path including a single actuating rod of electrical insulator for connecting the actuator to the movable contacts in the circuit breaking units. In the circuit breaker, an electromagnetic actuating unit is disposed between the supporting means of electrical insulator and the circuit breaking units in electrically insulated relation from the circuit breaking units. This electromagnetic actuating unit comprises a current conducting path portion for electrically connecting the circuit breaking units in series with each other, means disposed in parallel with this current conducting path portion for producing an electromagnetic repulsive force, and means for transferring current flow to the repulsive force producing means from the current conducting path portion in response to the operation of the actuator so that the electromagnetic repulsive force produced by the repulsive force producing means can be used as an actuating force for driving the movable contacts in the circuit breaking units in the circuit breaking direction.

REFERENCES:
patent: 2454586 (1948-11-01), Amer
patent: 3532843 (1970-10-01), Pucher
patent: 3786216 (1974-01-01), Beier et al.

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