Circuit interrupter

Details Circuit interrupter Circuit interrupter

1981-11-23

1983-06-14

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

335201, H01H 3304, H01H 3342

Patent

active

043885063

ABSTRACT:
The contact structure and the arc extinguisher means of a circuit interrupter are enclosed in an insulating housing of each pole and the operating mechanism is isolated from the contact structure and located outside of the housing. The housing for each pole forms an arc extinguisher amper with a detachably attached cover containing an arc extinguisher, and a contact chamber containing a contact structure in each pole. An interconnecting rod, located between the contact structure and the operating mechanism has a flange or barrier for covering an opening in the housing through which the rod extends. Upon contact separation, the electric arc increases the internal pressure within the housing, thereby rapidly effecting arc extinction. The dielectric strength between the contact structure and the operating mechanism is also greatly increased in comparison with conventional designs.

REFERENCES:
patent: 3483343 (1969-12-01), Heft
patent: 3555471 (1971-01-01), Mitskevich et al.
patent: 3564176 (1971-02-01), Fechant
patent: 3940723 (1976-02-01), Horikawa
patent: 4001742 (1977-01-01), Jencks et al.

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