Combined device for on-load breaking and visible isolation of an

Details Combined device for on-load breaking and visible isolation of an Combined device for on-load breaking and visible isolation of an

1985-03-20

1986-06-24

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144R, 200146R, H01H 3306, H01H 932

Patent

active

045969116

ABSTRACT:
A combined isolating switch-circuit breaker comprising at least one fixed contact breaking element, one fixed isolating contact element and at least one mobile assembly comprising a mobile contact breaking element electrically connected to a mobile isolating contact element. The arrangement of said mobile contact elements with respect to said fixed contact elements is provided so that, during closure of the combined device, the fixed isolating contact is closed before the electric contact is established between the fixed contact breaking element and the mobile contact breaking element and, conversely opening of the breaking contact is provided before opening of the isolating contact occurs.

REFERENCES:
patent: 1473574 (1923-11-01), Getchell
patent: 1833173 (1931-11-01), Murray
patent: 2668891 (1954-02-01), Driescher, Jr.

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