Electrical circuit interrupting devices

Details Electrical circuit interrupting devices Electrical circuit interrupting devices

1982-04-09

1985-04-30

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150R, H01N 3375, H01N 3322

Patent

active

045146071

ABSTRACT:
An electrical circuit interrupting device such as a circuit breaker or switch has openable contacts immersed in a first relatively dense liquid, such as a perfluorocarbon, constituting an arc interruption medium and has a second less dense non-flammable dielectric liquid e.g. a halogenated liquid such as perchloroethylene or trichlorobenzene or carbontetrachloride constituting a coolant forming a second phase above the first liquid.

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