Compressed-gas breaker

Details Compressed-gas breaker Compressed-gas breaker

1988-05-12

1989-01-17

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148A, 200148B, H01H 3370

Patent

active

047989246

ABSTRACT:
The compressed-gas breaker exhibits two contact members (3; 11, 12, 13), of which one (11, 12, 13) is constructed as a nozzle, and an insulating nozzle (5) and a heating volume (8) for storing switching-arc-generated compressed gas.
This breaker is intended to be distinguished by a high pressure buildup in the heating volume (8) and a great thermal quenching capacity.
This is achieved by a multi-part construction of the contact member (11, 12, 13) acting as a nozzle. In particular, this contact member (11, 12, 13) exhibits a tubular body (13), which is axially displaceably conducted in a contact carrier (11), of erosion-resistant contact material, which, during interruption, forms the nozzle constriction (19) of this contact member (11, 12, 13) while under the action of a spring (15).

REFERENCES:
patent: 4427862 (1984-01-01), Lin

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