Electric circuit breaker arc chute composition

Details Electric circuit breaker arc chute composition Electric circuit breaker arc chute composition

1987-06-01

1988-03-22

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200149A, H01H 3302

Patent

active

047330325

ABSTRACT:
A current limiting circuit breaker having a pair of separable contacts closely spaced for electrodynamic repulsion upon the occurrence of a short circuit overload condition utilizes an arc chute to cool and extinguish the arc that occurs when the contacts become separated. The arc chute contains a plurality of metal arc plates supported by side plates which also assist in cooling and extinguishing the arc. The side plates are formed from a two-layer configuration wherein the first layer has excellent arc extinguishing properties while the second layer has good mechanical support strength. The side plates are oriented such that the first layers face the contacts.

REFERENCES:
patent: 2005684 (1935-06-01), Sachs
patent: 2439929 (1948-04-01), Hill et al.
patent: 2551822 (1951-05-01), Bingenheimer et al.
patent: 3761660 (1973-09-01), Jones
patent: 3986213 (1974-01-01), Holmstrom
patent: 4278859 (1981-07-01), Borona
patent: 4375021 (1983-02-01), Pardini et al.

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