Varistor quenched arc chute for current limiting circuit interru

Details Varistor quenched arc chute for current limiting circuit interru Varistor quenched arc chute for current limiting circuit interru

1986-03-14

1987-02-24

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144C, 200144R, H01H 3316

Patent

active

046458891

ABSTRACT:
A varistor quenched arc chute for current limiting circuit interrupters utilizes the combination of a plurality of stacked metal plates for attracting the arc that forms upon separation of the current limiting contacts with interspersed varistor elements for dissipating the system stored energy. The number of metal plates and the clamping voltage of the varistors is adjusted for optimum arc de-ionization. After arc extinction, the metal plates serve as cooling fins for the varistors.

REFERENCES:
patent: 2279040 (1942-04-01), Grosse
patent: 2753423 (1956-07-01), Hairy
patent: 3495056 (1970-02-01), Jensen
patent: 3543047 (1970-11-01), Renfrew
patent: 4375021 (1983-02-01), Pardini et al.

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