Circuit interrupter including arc extinguishing fluid pressuriza

Details Circuit interrupter including arc extinguishing fluid pressuriza Circuit interrupter including arc extinguishing fluid pressuriza

1978-03-23

1981-04-28

Truhe, J. V.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150D, 200150G, H01H 3374

Patent

active

042647940

ABSTRACT:
A circuit interrupter comprising an interrupting unit including an arc extinguishing chamber containing an arc extinguishing fluid and a pair of separable contacts disposed within the arc extinguishing chamber. The interrupter also comprises a fluid pressurizing means for compressing the arc extinguishing fluid in response to the contact opening operation and puffing the compressed fluid at an electric arc established between the separated contacts, and a pressure storing means for temporarily storing the compressed high pressure fluid for puffing the arc extinguishing fluid with the stored fluid pressure upon a decrease of the arc current to the zero value.

REFERENCES:
patent: 4139752 (1979-02-01), Itai et al.

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