Vacuum circuit breaker

Details Vacuum circuit breaker Vacuum circuit breaker

1977-05-27

1978-12-12

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

041297601

ABSTRACT:
A vacuum circuit breaker comprising an evacuated envelope and a pair of movable conductive rods within the envelope having points of contact equipped with contact members, wherein the conductive rods slide into and out of engaging contact, the improvement comprising at least one of said contacts having circuit-making and breaking members formed of an alloy consisting essentially of 4 wt% to 9.4 wt% aluminum, 0.5 wt% to 3.5 wt% of beryllium, 0.1 wt% to 10 wt% of Me.sub.1, wherein Me.sub.1 is at least one metal selected from the group consisting of bismuth, tellurium, selenium, antimony, magnesium and lead, and the balance copper.

REFERENCES:
patent: 2975256 (1961-03-01), Lee et al.
patent: 3497652 (1970-02-01), Horn et al.
patent: 3551622 (1970-12-01), Takeuchi et al.
patent: 3770497 (1973-11-01), Hassler et al.

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