Circuit-breaker

Details Circuit-breaker Circuit-breaker

1982-07-09

1984-02-14

Goldberg, E. A.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, 200241, H01H 3304

Patent

active

044318863

ABSTRACT:
A circuit-breaker has a fixed contact, a movable contact and coil for rotating the arc. The components are mounted in a casing containing pressurized gas having arc-extinguishing properties. The fixed contact is connected to a second end of the coil, the first end of which is connected to a first terminal. The movable contact is carried by a hollow movable contact member which is electrically connected to a second terminal. The contact member has ports which control communication between a first chamber in the casing in which the fixed contact is located and a second chamber in the casing in dependence upon the position of the contact member. Ferromagnetic material is positioned adjacent the coil which is coaxial with the line of movement of the contact member.

REFERENCES:
patent: 2411892 (1946-12-01), Peters
patent: 4286128 (1981-08-01), Ruffieux et al.

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