H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/230
H01H 33/74 (2006.01) H01H 33/91 (2006.01)
Patent
CA 1044290
ABSTRACT OF THE DISCLOSURE A fluid-blast circuit interrupter of the puffer type is provided having two pistons connected in tandem to compress arc-extinguishing fluid in two separate volumes and to produce two separate fluid blasts. Valve action is provided to delay the initiation of the second blast until the interrupter contacts have reached the desired separation distance. By changing component dimensions the degree of compression of arc-extinguishing fluid may be changed with- out delaying the instant of contact separation.
236439
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