Circuit breaker, particularly line-protective circuit breaker

Details Circuit breaker, particularly line-protective circuit breaker Circuit breaker, particularly line-protective circuit breaker

1984-03-15

1986-04-29

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144C, 200147R, H01H 3302, H01H 930

Patent

active

045859124

ABSTRACT:
A circuit breaker, and particularly, though not exclusively, an automatic cut-out or line-protective circuit breaker, which includes a housing, an electric arc chamber arranged within the housing, a fixed contact and a movable contact located in the arc chamber, a current supply line forming a U-shaped current loop with the contacts. The arc-extinguishing chamber incorporates arc-extinguishing plates for guiding the path of the arc into the electric arc chamber to the extinguishing chamber, and in which plates of a magnetically-conductive material extend in parallel with the plane of contact movement up to opening or breaking thereof, and extend from the contacts to the arc-extinguishing chamber, and a gas-emitting coating being provided on each of the plates and constituted of an electrically-insulating material which emits gas when heated.

REFERENCES:
patent: 2337949 (1943-12-01), Walle
patent: 3021409 (1962-02-01), Cobine et al.
patent: 4393287 (1983-07-01), Nakano

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