Arc interrupter

Details Arc interrupter Arc interrupter

1987-02-27

1988-06-21

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, H01H 3312

Patent

active

047526599

ABSTRACT:
The rating of an arc interrupter is improved by having a movable contact assembly, which is engageable with and completely disengageable from a fixed contact in make and break positions, respectively, consisting of two main current carrying members the first of which is the last part of the assembly to disengage from the fixed contact during an opening operation. The delay in disengaging the first contact member from the fixed contact can be achieved in several ways. For example, the geometry of the first contact member can be different from the geometry of the second contact member (by the provision of an arcing tip); by the provision of a lost-motion mechanism; or by the provision of an auxiliary contact.

REFERENCES:
patent: 3824359 (1974-07-01), Date
patent: 3825708 (1974-07-01), Bergman
patent: 4289941 (1981-09-01), Cannon
patent: 4355220 (1982-10-01), Parry
patent: 4521654 (1985-06-01), Eberhardt et al.

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