Low-voltage limiting circuit breaker with leaktight extinguishin

Details Low-voltage limiting circuit breaker with leaktight extinguishin Low-voltage limiting circuit breaker with leaktight extinguishin

1989-06-12

1990-07-24

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, 200148B, H01H 3306

Patent

active

049436910

ABSTRACT:
A current limiter comprises an extinguishing chamber 16 of small volume, in which there are housed a pair of contacts 28, 30 and an insulating shield 40, capable of moving to an active position inserted between the contacts 28, 30, and of subdividing the chamber 16 into two parts each of which contains one of the contacts 28, 30. The movement of the insulating shield 40 to the inserted position between the contacts 28, 30 is favored by the action of a piston 48 subjected to the pressure prevailing in the extinguishing chamber 16.

REFERENCES:
patent: 4534263 (1985-08-01), Heyne et al.
patent: 4563556 (1986-01-01), Goldstein
patent: 4677266 (1987-06-01), Belbel et al.
patent: 4700030 (1987-10-01), Belbel et al.

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