Puffer-type circuit interrupter comprising fluid pressure...

Details Puffer-type circuit interrupter comprising fluid pressure... Puffer-type circuit interrupter comprising fluid pressure...

H - Electricity

01

H

306/230

H01H 33/78 (2006.01) H01H 33/98 (2006.01) H01H 33/91 (2006.01)

Patent

CA 1094619

CIRCUIT INTERRUPTER Abstract of the Desclosure 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 puffin 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.

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