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1. 发明授权

US4511775A Circuit breaker 失效
标题翻译：断路器
公开(公告)号：US4511775A
公开(公告)日：1985-04-16
申请号：US416027
申请日：1982-09-08
申请人： Gerhard Korner , Horst Plettner , Walter Viering , Volker Rees
发明人： Gerhard Korner , Horst Plettner , Walter Viering , Volker Rees
IPC分类号： H01H33/91 , H01H33/88 , H01H33/915
CPC分类号： H01H33/882
摘要： A circuit breaker, in particular a high-voltage circuit breaker employing SF.sub.6 gas, possesses a fixed contact part, and a movable switching piece which is provided with a blast nozzle and can be actuated by a drive. During the process of tripping out, a compression space is rendered smaller to generate a flow of gas towards the blast nozzle and an arc produced during switching out by movement of a movable cylinder over a stationary piston head. In order to reduce the drive power, the compression space is surrounded by a coil for generating a magnetic field. The coil is capable of being switched into the current path in such a manner that, during the process of tripping out, current does not flow through the coil until disconnection has been effected at the main contact point. An auxiliary piston is located in the compression space. The auxiliary piston is capable of being driven by the magnetic field toward the contact point in order to render the compression space smaller.
摘要翻译：一种断路器，特别是采用SF6气体的高压断路器，具有一个固定的接触部分，以及一个设有鼓风喷嘴的可移动的开关件，可由驱动器驱动。在脱扣过程中，压缩空间变小以产生朝向喷嘴的气体流，以及通过活动气缸在静止活塞头上移动而产生的电弧。为了降低驱动功率，压缩空间由用于产生磁场的线圈包围。线圈能够以这样的方式切换到电流路径，使得在跳闸过程中，电流不会流过线圈，直到在主触点断开。辅助活塞位于压缩空间内。辅助活塞能够被磁场驱动到接触点，以使压缩空间更小。

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