发明公开
EP0950276A1 DEVICE AND METHOD RELATING TO PROTECTION OF AN OBJECT AGAINST OVER-CURRENTS COMPRISING OVER-CURRENT REDUCTION AND CURRENT LIMITATION
失效
装置和一种用于保护物体克服CURRENTS超过降低功耗和电流限制
- 专利标题： DEVICE AND METHOD RELATING TO PROTECTION OF AN OBJECT AGAINST OVER-CURRENTS COMPRISING OVER-CURRENT REDUCTION AND CURRENT LIMITATION
- 专利标题（中）： 装置和一种用于保护物体克服CURRENTS超过降低功耗和电流限制
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申请号： EP97924463.0申请日： 1997-05-27
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公开(公告)号： EP0950276A1公开(公告)日： 1999-10-20
- 发明人: BERNHOFF, Hans , BERGKVIST, Mikael , EKBERG, Mats , ISBERG, Jan , LEIJON, Mats , MING, Li , SUNESSON, Anders , WINDMAR, Dan
- 申请人： ASEA BROWN BOVERI AB
- 申请人地址： 721 78 Västeras SE
- 专利权人： ASEA BROWN BOVERI AB
- 当前专利权人： ASEA BROWN BOVERI AB
- 当前专利权人地址： 721 78 Västeras SE
- 代理机构： Bjerkén, Jarl Hakan, et al
- 优先权： SE19960004630 19961217; SE19970000335 19970203
- 国际公布： WO1998027635 19980625
- 主分类号： H02H3
- IPC分类号： H02H3 ; H01F3 ; H01F27 ; H01F29 ; H02H7 ; H02H9
摘要：
This invention is related to a device and a method in an electric power plant for protection of an object (1) against over-currents from a network (3) or another equipment included in the high voltage plant, the device comprising a switching device (4) in a line (2) between the object and the network/equipment. The line (2) between the object and the network/equipment is connected to an arrangement (5) reducing over-currents towards the object (1), said arrangement (5) being actuatable for over-current reduction with the assistance of an over-current condition detecting arrangement (11-13) within a time period substantially less than the break-time of the switching device (4).
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