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1.发明授权
公开(公告)号：US3592989A
公开(公告)日：1971-07-13
申请号：US3592989D
申请日：1968-12-26
Applicant: ASEA AB
Inventor： PUCHER WALTER , GARD INGE , PERSSON KARL GOTE
CPC classification number: H01H33/75
Abstract: An arrangement for preventing high voltage liquid minimum circuit breakers from restriking when breaking capacitive loans. The liquid in the breaking chambers is put under high pressure by supplying compressed gas through an insulating conduit from earth potential to a space above the liquid level in each chamber. Between the gas-filled space and the conduit is a valve, which is open during normal operation but closes during a breaking operation, thus preventing carbonized liquid from penetrating into the conduit.
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