Vacuum circuit breaker

Details Vacuum circuit breaker Vacuum circuit breaker

1985-11-19

1987-09-22

Budd, Mark O.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

046956891

ABSTRACT:
A pair of separable disc shaped electrodes for a vacuum circuit breaker, each including an annular contact part formed around the outer circumferential portion of the electrode on the facing surface to the other electrode, a round recessed part formed on the inner portion thereof and surrounded by the annular contact part, an elastic support plate placed on the non-facing surface thereof and three straight grooves extending from the outer periphery of the annular contact part to the inner periphery thereof so that arcing on the round recessed part is prevented during a circuit breaking operation of the vacuum circuit breaker.

REFERENCES:
patent: 3522399 (1970-07-01), Crouch
patent: 3836740 (1974-09-01), Hundstad
patent: 4149050 (1979-04-01), Gorman et al.
patent: 4293748 (1981-10-01), Sakamua et al.
patent: 4553003 (1985-11-01), Cherry

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