Means for operating blast valve in two-pressure circuit breaker

Details Means for operating blast valve in two-pressure circuit breaker Means for operating blast valve in two-pressure circuit breaker

1979-12-19

1982-04-06

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, 200148D, H01H 3386

Patent

active

043237436

ABSTRACT:
An improved limited-travel linkage for "cracking" a gas blast valve in a circuit breaker. A projection from a portion of the circuit breaker linkage travels along an arc in interfering relationship with a spring-loaded latch on a crank. Movement in one direction engages the latch, turning the crank and cracking the valve. Arc quenching gas then flows through a conduit to the interrupter contacts to blow out the arc drawn between them.

REFERENCES:
patent: 3033962 (1962-05-01), Friedrich et al.
patent: 3922512 (1975-11-01), Benham

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