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公开(公告)号:US4749829A
公开(公告)日:1988-06-07
申请号:US35660
申请日:1987-03-26
CPC分类号: H01H71/121
摘要: A circuit breaker has current-limiting resistances (12) which are provided between a base (1) and a cover (18) and which limit a current to a tripping bimetal (11) for preventing fusing of the tripping bimetal (11).
摘要翻译: 断路器具有设置在基座(1)和盖(18)之间的限流电阻(12),并且限制了跳闸双金属(11)的电流,以防止跳闸双金属片(11)熔断。
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公开(公告)号:US5053735A
公开(公告)日:1991-10-01
申请号:US418192
申请日:1989-10-06
申请人: Hirotoshi Ohishi , Tatsunori Ikeda , Manabu Sogabe
发明人: Hirotoshi Ohishi , Tatsunori Ikeda , Manabu Sogabe
IPC分类号: H01H89/08
CPC分类号: H01H89/08
摘要: A remotely operated circuit breaker comprises a handle which is selectively positioned at one of three operating positions: a handle off position into which the handle is manually positioned to forcibly open the electrical contacts in the circuit breaker; a handle auto position into which the handle is positioned manually so that the electrical contacts are driven to normally open and close by a control mechanism which in turn is controlled by an electromagnetic driving unit response to a remote control voltage applied thereto; and a trip position into which the handle is automatically positioned by the control mechanism and a forcible overcurrent protecting unit to and the electrical contacts are opened rapidly when an overcurrent as well as a short-circuit current flows through the electrical contacts.
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