Circuit interrupter

Details Circuit interrupter Circuit interrupter

1985-05-09

1987-02-10

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, H01H 3320

Patent

active

046424288

ABSTRACT:
A circuit interrupter comprising a stationary conductor carrying a stationary contact, a movable contact arm carrying thereon a movable contact which, when in the open position, defines an arcing region together with the stationary contact, an operating mechanism for moving the movable contact arm between contact closed and open positions, an arc extinguisher facing toward the arcing region for cooling and extinguishing the electric arc, an arc horn for transferring thereon one leg of the electric arc, and an arc runner mounted on the stationary conductor for transferring thereon the other leg of the electric arc from the stationary contact. The arc runner has formed therein an arc runner slot which opens to substantially surround the arcing region, and the arc runner and the stationary contact are positioned such that at least one of the movable contact and the arc horn of the movable contact arm is located within the arc runner slot of the arc runner when the contacts are in the closed position.

REFERENCES:
patent: 2821594 (1958-01-01), Latour
patent: 4237355 (1980-12-01), Fechant et al.
patent: 4560847 (1985-12-01), Mori

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