Compressed-gas circuit interrupter having insulated contacts

Details Compressed-gas circuit interrupter having insulated contacts Compressed-gas circuit interrupter having insulated contacts

1978-03-09

1980-01-01

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148A, H01H 3302

Patent

active

041818377

ABSTRACT:
A compressed-gas circuit interrupter characterized by at least one pair of separable contacts, each contact being tubular and having a tubular insulating liner on the inner surface thereof, each liner being recessed from the open end of the contact to provide an unlined tubular surface end portion, each liner having a restrictive cross-sectional area for maximum gas pressure gradient, and gas supply means for directing a flow of compressed gas into the tubular contacts when the contacts are opened to effect elongation and extinction of an arc created upon separation of the contacts.

REFERENCES:
patent: 3855437 (1974-12-01), Goedecke et al.
patent: 3873792 (1975-03-01), Heiner
patent: 3891814 (1975-06-01), Hertz et al.

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