High current vacuum circuit interrupter with contacts having...

Details High current vacuum circuit interrupter with contacts having... High current vacuum circuit interrupter with contacts having...

H - Electricity

01

H

306/216

H01H 33/66 (2006.01) H01H 1/02 (2006.01)

Patent

CA 1068753

ABSTRACT OF THE DISCLOSURE A vacuum-type circuit interrupter comprises a pelf of separable contacts having arcing portions between which arcs are formed upon disengagement of said contacts. These arcing portions are of a material consisting essentially of beryllium formed from a vacuum-cast ingot that has been subjected to hot working by extrusion to produce a micro- structure characterized by grains much smaller on the average than the grains of the as-cast ingot.

240618

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