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1. 发明申请

WO2013071980A1 HVDC HYBRID CIRCUIT BREAKER WITH SNUBBER CIRCUIT 审中-公开
标题翻译： HVDC混合电路断路器与SNUBBER电路
公开(公告)号：WO2013071980A1
公开(公告)日：2013-05-23
申请号：PCT/EP2011/070484
申请日：2011-11-18
申请人： ABB TECHNOLOGY AG , HÄFNER, Jürgen , HASSANPOOR, Arman
发明人： HÄFNER, Jürgen , HASSANPOOR, Arman
IPC分类号： H01H33/59 , H01H9/54
CPC分类号： H02H3/22 , H01H9/541 , H01H33/596 , H01H2009/544 , H01H2009/546
摘要： A high voltage direct current (HVDC) hybrid circuit breaker (200) is provided. The circuit breaker comprises a solid-state main breaker (210), a mechanical fast disconnector (220) and a solid-state auxiliary breaker (230) connected in series, the series-connection of the disconnector and the auxiliary breaker being connected in parallel to the main breaker, a snubber circuit comprising a capacitor (250), and switching means (270) being arranged for disconnecting the snubber capacitor in response to the auxiliary breaker being opened. By disconnecting the snubber capacitor, an uncontrolled discharging of the capacitor through the disconnector and the main breaker, and the resulting non-zero current flowing through the disconnector during the breaking action, may be avoided. Further, a method of an HVDC hybrid circuit breaker is provided.
摘要翻译：提供高压直流（HVDC）混合式断路器（200）。断路器包括固态主断路器（210），机械快速断路器（220）和串联连接的固态辅助断路器（230），断路器和辅助断路器的串联连接并联包括电容器（250）和开关装置（270）的缓冲电路被布置成响应于断路器被断开而断开缓冲电容器。通过断开缓冲电容器，可以避免电容器通过断路器和主断路器的不受控制的放电，以及在断开动作期间流过隔离开关的结果非零电流。此外，提供了一种HVDC混合式断路器的方法。

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