发明公开
- 专利标题： PROTECTING AN OPERATION CONTROL UNIT CONNECTED TO AN ELECTRIC MACHINE VIA A LONG CABLE
- 专利标题（中）： 电机对长电缆连接的服务控制保护
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申请号： EP11708433.5申请日： 2011-03-02
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公开(公告)号： EP2681823A1公开(公告)日： 2014-01-08
- 发明人: RONGVE, Knut , RONHOVD, Tor-Odd
- 申请人： ABB AS
- 申请人地址： Bergerveien 12 1396 Billingstad NO
- 专利权人： ABB AS
- 当前专利权人： ABB AS
- 当前专利权人地址： Bergerveien 12 1396 Billingstad NO
- 代理机构： Ahrengart, Kenneth
- 国际公布： WO2012116742 20120907
- 主分类号： H02H7/08
- IPC分类号： H02H7/08 ; H02H9/04
摘要：
The invention concerns a system for operating an electric machine and a method for protecting an operation control unit in such a system. The system comprises an operation control unit (20), an alternating current cable (16) connecting the machine (30) with the operation control unit and an electric short-circuiting arrangement (26). This arrangement is connected to terminals of the operation control unit facing the cable and short circuits these terminals based on a detected overvoltage.
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