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1. 发明申请

WO2010066303A1 A SYSTEM FOR TRANSIENT OVERVOLTAGE PROTECTION 审中-公开
标题翻译：一种瞬态过电压保护系统
公开(公告)号：WO2010066303A1
公开(公告)日：2010-06-17
申请号：PCT/EP2008/067390
申请日：2008-12-12
申请人： ABB RESEARCH LTD , SANNINO, Ambra , BREDER, Henrik , LILJESTRAND, Lars , RAFOSS, Svenn-Erik , PIASECKI, Wojciech
发明人： SANNINO, Ambra , BREDER, Henrik , LILJESTRAND, Lars , RAFOSS, Svenn-Erik , PIASECKI, Wojciech
IPC分类号： H02H9/04 , F03D9/00
CPC分类号： H02H9/04
摘要： The present invention relates to a power system (1) comprising an electrical apparatus (2), a switchgear (4, 4a) electrically connected by means of a power cable (3) to the apparatus and including a switch (5) arranged to connect and disconnect electrical power to the apparatus via the power cable, wherein transient overvoltages may occur when connecting or disconnecting the power by operating the switch, and the system further comprises a transient overvoltage reducing device arranged to protect the apparatus against the transient overvoltages transmitted through the power cable to the apparatus. The transient overvoltage reducing device (6, 6a, 6b) is arranged inside of or in immediate proximity to the switchgear. The present invention also relates to a switchgear comprising a bushing and a transient overvoltage reducing device for providing transient overvoltage protection for an electrical apparatus, and to a power cable including a cable termination with a transient overvoltage reducing device arranged to protect the apparatus against the transient overvoltages transmitted through the power cable.
摘要翻译：电力系统技术领域本发明涉及一种电力系统（1），包括电气设备（2），通过电力电缆（3）与设备电连接的开关设备（4,4a），并且包括开关（5）并且经由所述电力电缆断开对所述设备的电力，其中当通过操作所述开关来连接或断开所述电力时可能发生瞬态过电压，并且所述系统还包括瞬态过电压降低装置，所述瞬态过电压降低装置被布置为保护所述装置免受通过所述电力线传输的瞬态过电压电源线到设备。瞬态过电压降低装置（6,6a，6b）布置在开关柜的内部或紧邻开关装置。本发明还涉及一种开关装置，其包括衬套和用于为电气设备提供瞬态过电压保护的瞬态过电压降低装置，以及包括具有瞬态过电压降低装置的电缆终端的电力电缆，该瞬态过电压降低装置布置成保护装置免受瞬态过电压通过电源线传输。

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