Gas-blast circuit breaker

Details Gas-blast circuit breaker Gas-blast circuit breaker

1978-08-02

1980-11-25

Rubinson, Gene Z.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148A, H01H 940

Patent

active

042360544

ABSTRACT:
A gas-blast circuit breaker has a plurality of serially arranged circuit breaking stations per pole and a tubular throughgoing stationary casing of electrically insulating material enclosing the circuit breaking stations. Each circuit breaking station has a stationary contact affixed to the casing, a movable contact cooperating with the stationary contact, a movable nozzle of insulating material and a gas pressurizing piston-and-cylinder arrangement. Each such arrangement has an outer cylindrical wall structure, a piston slidable therein and a stationary component affixed to the casing and forming a radial cylinder base. Each outer cylindrical wall structure is constituted by a length portion of the casing. Each piston-and-cylinder arrangement has an inner wall structure spaced from the casing. The inner wall structures each constitute a guide for slidably supporting the movable contact for axial displacement with respect to the inner wall structure.

REFERENCES:
patent: 2913556 (1959-11-01), Leeds
patent: 3769479 (1973-10-01), Leeds
patent: 3895202 (1975-07-01), Okerman et al.
patent: 3939317 (1976-02-01), Noack et al.
patent: 4105880 (1978-08-01), Rapp et al.

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