发明名称 |
Anordning och förfarande för att skydda ett objekt mot felrelaterade överströmmar (Fall 3) |
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). The over-current reducing arrangement (5) comprises a switch means (10) with an electrode gap, which may be imparted electrical conductivity for over-current diversion. |
申请公布号 |
SE515702(C2) |
申请公布日期 |
2001.09.24 |
申请号 |
SE19960004631 |
申请日期 |
1996.12.17 |
申请人 |
ABB AB |
发明人 |
MIKAEL *BERGKVIST;MATS *EKBERG;MATS *LEIJON;ANDERS *SUNESSON;THOMAS *FOGELBERG;HANS *BERNHOFF;JAN *ISBERG;LI *MING;DAN *WINDMAR |
分类号 |
H02H9/06;H01H;H01T2/00;H02H3/02;H02H9/02;H02H9/04;(IPC1-7):H02H9/02 |
主分类号 |
H02H9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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