Vacuum interrupter

Details Vacuum interrupter Vacuum interrupter

1993-11-04

1996-02-27

Scott, J. R.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Vacuum

218127, 218129, 200147R, 200144B, H01H 3366

Patent

active

054950856

ABSTRACT:
In a vacuum interrupter comprising a disc-shaped stationary electrode and a disc-shaped movable electrode arranged in an evacuated envelope in opposed relationship, a slot or a salient part is formed on the surface of both the electrodes and thereby a path of an arc current in disconnection operation of both the electrodes is formed along the circumference of the disc-shaped electrode. The shape and position of the slot is selected so that the arc current flows uniformly along the entire circumference of both the electrodes.

REFERENCES:
patent: 4336430 (1982-06-01), Kurosawa et al.
patent: 4430536 (1984-02-01), Kurosawa et al.
patent: 4473731 (1984-09-01), Yorita
patent: 4584445 (1986-04-01), Kashiwagi et al.
patent: 4588879 (1986-05-01), Noda et al.
patent: 4667070 (1987-05-01), Zuckler
patent: 4935588 (1990-06-01), Hess et al.
patent: 5055639 (1991-10-01), Schels et al.
Patent Abstracts of Japan, vol. 16, No. 91, E-1174, Mar. 5, 1992.
Patent Abstracts of Japan, vol. 17, No. 608, E-1457, Nov. 9, 1993.

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