公开(公告)号：EP1008220A1

公开(公告)日：2000-06-14

申请号：EP97924465.4

申请日：1997-05-27

申请人： ASEA BROWN BOVERI AB

发明人： BERNHOFF, Hans ,  BERGKVIST, Mikael ,  ERKERG, Mats ,  ISBERG, Jan ,  LEIJON, Mats ,  MING, Li ,  SUNESSON, Anders ,  WINDMAR, Dan

IPC分类号： H02H9/02

CPC分类号： H01F3/10 ,  H01F3/14 ,  H01F27/288 ,  H01F27/323 ,  H01F27/34 ,  H01F29/14 ,  H01F2027/329 ,  H02H3/023 ,  H02H3/025 ,  H02H7/06 ,  H02H9/023 ,  H02H9/028 ,  H02K2203/15 ,  Y02E40/69

摘要： This invention is related to a device and a method for protection, in an electric power plant, of an object (1) against overcurrents 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 overcurrents towards the object (1), said arrangement (5) being activatable for overcurrent reduction with the assistance of an arrangement (11-13) detecting overcurrent conditions within a time period substantially shorter than the breaktime of the switching device (4).

公开(公告)号：EP1008219A1

公开(公告)日：2000-06-14

申请号：EP97924464.7

申请日：1997-05-27

申请人： ASEA BROWN BOVERI AB

发明人： BERNHOFF, Hans ,  BERGKVIST, Mikael ,  EKBERG, Mats ,  ISBERG, Jan ,  LEIJON, Mats ,  MING, Li ,  SUNESSON, Anders ,  WINDMAR, Dan ,  BERGGREN, Bertil

IPC分类号： H02H9/02

CPC分类号： H02H3/025 ,  H01F3/10 ,  H01F3/14 ,  H01F27/288 ,  H01F27/323 ,  H01F27/34 ,  H01F29/14 ,  H01F2027/329 ,  H02H3/023 ,  H02K2203/15

摘要： This invention is related to a device and a method for protection, in an electric power plant, 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 activatable for over-current reduction with the assistance of an arrangement (11-13) detecting over-current conditions within a time period substantially shorter than the breaktime of the switching device (4).

公开(公告)号：EP0950277A1

公开(公告)日：1999-10-20

申请号：EP97925367.0

申请日：1997-05-27

申请人： ASEA BROWN BOVERI AB

发明人： BERNHOFF, Hans ,  BERGKVIST, Mikael ,  EKBERG, Mats ,  ISBERG, Jan ,  LEIJON, Mats ,  MING, Li ,  SUNESSON, Anders ,  WINDMAR, Dan ,  BERGGREN, Bertil

IPC分类号： H02H3 ,  H01F3 ,  H01F27 ,  H01F29 ,  H02H7 ,  H02H9

CPC分类号： H02H3/025 ,  H01F3/10 ,  H01F3/14 ,  H01F27/288 ,  H01F27/323 ,  H01F27/34 ,  H01F29/14 ,  H01F2027/329 ,  H02H3/023 ,  H02K2203/15

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).

公开(公告)号：EP0947041A2

公开(公告)日：1999-10-06

申请号：EP97951373.0

申请日：1997-12-17

申请人： ASEA BROWN BOVERI AB

发明人： BERGQVIST, Mikael ,  BERNHOFF, Hans ,  EKBERG, Mats ,  FOGELBERG, Thomas ,  ISBERG, Jan ,  LEIJON, Mats ,  MING, Li ,  SUNESSON, Anders ,  WINDMAR, Dan ,  RUSSBERG, Gunnar

IPC分类号： H01H ,  H02H9 ,  H01T2 ,  H02H3

CPC分类号： H01T2/00 ,  H02H3/025 ,  H02H9/02 ,  H02H9/06

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.

公开(公告)号：EP0951747A2

公开(公告)日：1999-10-27

申请号：EP97951392.0

申请日：1997-12-17

申请人： ASEA BROWN BOVERI AB

发明人： BERGKVIST, Mikael ,  BERNHOFF, Hans ,  EKBERG, Mats ,  FOGELBERG, Thomas ,  ISBERG, Jan ,  LEIJON, Mats ,  MING, Li ,  SUNESSON, Anders ,  WINDMAR, Dan ,  RUSSBERG, Gunnar

IPC分类号： H01H ,  H02H9 ,  H01T2 ,  H02H3

CPC分类号： H01T2/00 ,  H02H3/025 ,  H02H9/02 ,  H02H9/06

摘要： A device for switching electric power comprises at least one electric switching arrangement (5). This switching arrangement comprises at least one switching element (10a) comprising an electrode gap (24). This gap is convertible between an electrically substantially insulating state and an electrically conducting state. Furthermore, the switching element comprises means (25) for causing or at least initiating the electrode gap or at least a part thereof to assume electrical conductivity. The means (25) for causing or at least initiating the electrode gap to assume conductivity are adapted to supply energy to the electrode gap in the form of radiation energy to bring the gap or at least a part thereof to the form of a plasma by means of this radiation energy.

公开(公告)号：EP0951749A2

公开(公告)日：1999-10-27

申请号：EP97951393.0

申请日：1997-12-17

申请人： ASEA BROWN BOVERI AB

发明人： BERGKVIST, Mikael ,  BERNHOFF, Hans ,  EKBERG, Mats ,  BERGGREN, Bertil ,  ISBERG, Jan ,  LEIJON, Mats ,  MING, Li ,  SUNESSON, Anders ,  WINDMAR, Dan

IPC分类号： H02H3 ,  H02H9

CPC分类号： H02H3/023

摘要： The device according to the invention is adapted to protect, in an electric power plant, objects (1, 7, 27) against fault-related over-currents, said objects being connected to an electric power network (3) or another equipment in the electric power plant. An over-current reducing arrangement (5) is connected to a line (2), which interconnects the network/equipment (3) and the object (1, 7, 27), said arrangement being actuatable for over-current reduction with the assistance of an over-current condition detecting arrangement.

摘要翻译： 根据本发明的装置适用于在电力设备中保护物体（1,7,27）免受与故障有关的过电流的影响，所述物体连接到电力网络（3）或另一个设备 电厂。 过电流减少装置（5）连接到将网络/设备（3）和物体（1,7,27）互连的线路（2），所述装置可以在辅助下用于过电流降低 的过电流状态检测装置。

公开(公告)号：EP0950276A1

公开(公告)日：1999-10-20

申请号：EP97924463.0

申请日：1997-05-27

申请人： ASEA BROWN BOVERI AB

发明人： BERNHOFF, Hans ,  BERGKVIST, Mikael ,  EKBERG, Mats ,  ISBERG, Jan ,  LEIJON, Mats ,  MING, Li ,  SUNESSON, Anders ,  WINDMAR, Dan

IPC分类号： H02H3 ,  H01F3 ,  H01F27 ,  H01F29 ,  H02H7 ,  H02H9

CPC分类号： H01F3/10 ,  H01F3/14 ,  H01F27/288 ,  H01F27/323 ,  H01F27/34 ,  H01F29/14 ,  H01F2027/329 ,  H02H3/023 ,  H02H3/025 ,  H02H7/06 ,  H02H9/023 ,  H02H9/028 ,  H02K2203/15 ,  Y02E40/69

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).