Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1986-10-15
1987-12-29
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148A, 200252, H01H 3370
Patent
active
047162660
ABSTRACT:
The present invention relates to an electrical arc interruption chamber, in particular for fluid-quenched circuit breakers, in which, inside a tightly sealed insulating encasing, containing an arc-quenching gas, provided are current-bearing connections, respectively supporting a movable main contact and a stationary main contact, each one of the main contacts being provided with its respective arc contact, and wherein the movable arc contact of the tulip type is positioned inside a wall element of insulating material, having, e.g., the shape of an upside-down bell, the movable contact and the bell-shaped element being housed inside the body of the movable main contact, in order to define a first chamber for the passage of the arc-quenching gas between the said body and the said insulating element, defined being furthermore a second chamber for the passage of the arc-quenching gas, which is movable between the movable arc contact and the bell-shaped element.
REFERENCES:
patent: 4393291 (1983-07-01), Stewart et al.
patent: 4427862 (1984-01-01), Lin
patent: 4475018 (1984-10-01), Arimoto et al.
patent: 4514605 (1985-04-01), Van
Muscaglione Giuseppe
Talpo Gianpietro
Macon Robert S.
SACE S.p.A. Costruzioni Elettromeccaniche
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