Arc quenching chamber for high breaking capacity circuit breaker

Details Arc quenching chamber for high breaking capacity circuit breaker Arc quenching chamber for high breaking capacity circuit breaker

1977-07-05

1981-05-19

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150R, H01H 3370

Patent

active

042687322

ABSTRACT:
In a quenching chamber for a high voltage circuit breaker, a pair of separable contoured contacts are held in abutment by springs along a contact surface, a high velocity arc quenching stream flowable between the contact surfaces during the separation thereof, the contoured surfaces of the contacts defining a Coanda-type nozzle, which controls the flow of the stream along sharp bends in the surfaces, increasing the velocity of the stream and its arc quenching ability.

REFERENCES:
patent: 2573797 (1951-11-01), Latour
patent: 4034175 (1977-07-01), Gratzmuller

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