Circuit interrupter comprising plural arc-quenching fluid...

Details Circuit interrupter comprising plural arc-quenching fluid... Circuit interrupter comprising plural arc-quenching fluid...

H - Electricity

01

H

306/229

H01H 33/74 (2006.01) H01H 33/98 (2006.01)

Patent

CA 1096914

CIRCUIT INTERRUPTER Abstract of the Disclosure A circuit interrupter comprising a first pressure chamber for quickly increasing the pressure of an arc extinguishing gas therein by utilizing the energy of an electric arc established between a pair of separable contacts, and a second pressure chamber disposed around the first pressure chamber for releasing the arc extinguishing gas together with the high pressure gas upon the decrease of the arc current. The arc is extinguished by high pressure arc extinguishing gas released from the second pressure chamber. The first and the second pressure chambers are connected by a communication port having a check valve therein to increase the pressure of the arc extinguishing gas within the second pressure chamber.

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