Gas-blast valve of a gas-blast circuit-breaker

Details Gas-blast valve of a gas-blast circuit-breaker Gas-blast valve of a gas-blast circuit-breaker

1979-02-07

1980-10-14

Truhe, J. V.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200145, 200148H, H01H 3382

Patent

active

042283310

ABSTRACT:
A gas-blast circuit-breaker which includes at least one cutout chamber including at least one blast valve with two seats, one of which, when the valve is opened, is situated on the blast-gas exit path. The breaker is characterized in that a moving slide valve is associated with the valve, in such a manner that opening the valve causes a slightly delayed movement of the slide valve in the same direction as the valve and along the same axis, so that it masks said valve seat situated on the exit path of the hot blast-gases arriving from extinguishing the arc when the blast-gases flow towards the outside; the slide valve being opened by compressed gas contained in the gas-blast circuit-breaker.

REFERENCES:
patent: 3573411 (1971-04-01), McKeough

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