Contact arrangement for a vacuum switch

Details Contact arrangement for a vacuum switch Contact arrangement for a vacuum switch

1974-10-03

1976-03-02

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

039419614

ABSTRACT:
A contact arrangement for a vacuum switch includes contacts which have central contact surfaces and arc running surfaces surrounding the central contact surfaces. Means are provided to direct current to the area of the central contact surfaces as well as to the area of the arc running surfaces. As the arc foot points approach the edge of the contacts, forces become effective which prevent the arc from leaving the area between the contacts.

REFERENCES:
patent: 3211866 (1965-10-01), Crouch et al.
patent: 3711665 (1973-01-01), Dethlefsen
patent: 3818164 (1974-06-01), Mizutani et al.
patent: 3836740 (1974-09-01), Hundstad

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