发明授权
- 专利标题： Gas-insulated circuit breaker
- 专利标题（中）： 气体绝缘断路器
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申请号： US640580申请日： 1984-08-14
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公开(公告)号： US4667072A公开(公告)日： 1987-05-19
- 发明人: Fumihiro Endo , Shigeo Kobayashi , Yoshio Yoshioka
- 申请人： Fumihiro Endo , Shigeo Kobayashi , Yoshio Yoshioka
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX58-153234 19830824; JPX58-129691 19830824; JPX59-5611 19840118; JPX59-5612 19840118
- 主分类号： H01H33/70
- IPC分类号： H01H33/70 ; H01H33/915 ; H01H33/88
摘要：
A protrusion is formed downstream of the throat of an insulating nozzle of a gas-insulated circuit breaker of puffer type. Quenching gas, after collision with the protrusion, is blown against an arc generated between a fixed arcing contact and a moving arcing contact in the opening process of the gas-insulated circuit breaker. As a result, a pressure drop at or near the forward end (Q) of the fixed arcing contact can be prevented thereby to improve the insulation strength in the opening process.
公开/授权文献
- US5819632A Variable-speed rotating drive 公开/授权日：1998-10-13
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