Circuit interrupter of the type producing a puff of arc extingui

Details Circuit interrupter of the type producing a puff of arc extingui Circuit interrupter of the type producing a puff of arc extingui

1978-06-27

1980-12-30

Truhe, J. V.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148A, 200150G, H01H 3388

Patent

active

042425506

ABSTRACT:
A circuit interrupter comprises a pair of contacts movable relative to one another into a separated or spaced apart position in a chamber containing a fluid for arc extinction, and includes a pressure chamber for storing the fluid for arc extinction which is pressurized by arcing occurring in the space between separating contacts. Structure is provided in association with the pressure chamber for preliminarily pressurizing the fluid depending upon the extent of movement of the contacts in a separating direction prior to separation thereof, and wherein an outlet from the chamber is opened after the contacts have separated, and the fluid for arc extinction in the pressure chamber is thus discharged through the arc space and the arc is interrupted by puffing of the fluid through the arc for arc extinction.

REFERENCES:
patent: 2957063 (1960-10-01), Leeds
patent: 3551626 (1970-12-01), Millianowicz
Japanese Unexamined Utility Model Publication Number 29345/1972.
Japanese Unexamined Utility Model Publication Number 42465/1974.

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