Contact arrangement for an electric compressed-gas circuit break

Details Contact arrangement for an electric compressed-gas circuit break Contact arrangement for an electric compressed-gas circuit break

1975-09-04

1977-03-29

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, H01H 3342

Patent

active

040150950

ABSTRACT:
The invention is directed to a contact arrangement in a compressed-gas circuit breaker such as a blast-piston breaker. The contact arrangement includes two base contacts and a bridging contact member. One of the base contacts is movable as a function of the current to be interrupted and the motion is controlled by two electrodynamic coil systems. One coil system causes a shortening of the gap and the other coil system causes a reverse motion shortly before the zero crossing to establish the quenching distance.

REFERENCES:
patent: 3238340 (1966-03-01), Lerch
patent: 3418440 (1968-12-01), Beatty et al.
patent: 3745281 (1973-07-01), Yoshioka
patent: 3789175 (1974-01-01), Beier et al.

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