Compressed-gas breaker

Details Compressed-gas breaker Compressed-gas breaker

1984-09-13

1985-12-17

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, 200147R, H01H 3312

Patent

active

045594252

ABSTRACT:
A compressed-gas breaker having a magnetic coil through which the breaking current flows, has two coaxial contact members which are movable with respect to each other along a central axis and have in each case one arcing contact. The arcing contacts are surrounded by a heating chamber which is joined to the arc volume located between the separated burning contacts during breaking. In this breaker, the breaking capacity is to be improved by a simple means. This is achieved by the fact that between the heating chamber and the arc volume a gas-guiding device is provided which has at least three ducts which are arranged to be distributed azimuthally around the axis. These ducts have sections which open radially with respect to the axis into the arc volume. Such a breaker can be used preferably for the switching of large current of medium-high voltage.

REFERENCES:
patent: 4086461 (1978-04-01), Gonek
patent: 4338500 (1982-07-01), Pham Van et al.
patent: 4463230 (1984-07-01), Perrenoud

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