发明名称 |
GAS-BLAST ELECTRICAL CIRCUIT BREAKER |
摘要 |
A pole-unit of a gas-blast electrical circuit breaker comprises a tranverse partition made of injected insulating plastic material which at the same time performs guiding of the movable contact which passes through it. The injected material part bears an O-ring ensuring tightness with the casing and a one-way check valve of gas flow orifices arranged in the transverse partition. The gas-blast piston securedly united to the movable contact is also made of injected material and it comprises housing and clipping means of the puffer nozzle securedly fixed to the piston. A scraper seal in the form of a split segment is housed in a circumferential groove arranged in the injected part of the piston. The electrical connection between the movable contact rod and a flexible current supply insert is achieved by a braided strip extending in the form of a half-loop in a transverse plane to the pole-unit.
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申请公布号 |
US5095183(A) |
申请公布日期 |
1992.03.10 |
申请号 |
US19890457925 |
申请日期 |
1989.12.27 |
申请人 |
MERLIN GERIN |
发明人 |
RAPHARD, DENIS;PERRIN, MAURICE;BESNARD, LAURENT;BLANC, JEAN-YVES |
分类号 |
H01H33/91;H01H33/915 |
主分类号 |
H01H33/91 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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