Rapid electric-arc extinguishing assembly in circuit-breaking de

Details Rapid electric-arc extinguishing assembly in circuit-breaking de Rapid electric-arc extinguishing assembly in circuit-breaking de

1980-12-16

1983-02-22

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144R, 200147R, H01H 3310

Patent

active

043750214

ABSTRACT:
A rapid arc extinguishing assembly includes an arc chute comprising a large number of essentially parallel deionizing plates each in form of thin magnetically permeable, electrically conductive plates bent in U-shape, with the curve of the U facing the circuit breaker contacts and the arms thereof insulated from each other by a thin insulation sheet. To promote arc extinction by the arc chute and accelerated breaker contact separation, the breaker contacts are flanked by a magnetic assembly comprising opposed columns of parallel, spaced ferromagnetic plates embedded in an insulating material. The columns may be magnetically coupled by a yoke to create a closed slot in which the breaker movable contact travels.

REFERENCES:
patent: 2293487 (1942-08-01), Bartlett
patent: 2337949 (1943-12-01), Walle
patent: 2378124 (1945-06-01), Bolsterli
patent: 2945109 (1960-07-01), Fehling
patent: 3369095 (1968-02-01), Maggi

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