- 专利标题: System and method of controlling current-limiters in ring systems
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申请号: US14688328申请日: 2015-04-16
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公开(公告)号: US10074972B2公开(公告)日: 2018-09-11
- 发明人: Karl-Heinz Hartung , Ralf Bockholt , Volker Grafe
- 申请人: ABB TECHNOLOGY AG
- 申请人地址: CH Baden
- 专利权人: ABB Schweiz AG
- 当前专利权人: ABB Schweiz AG
- 当前专利权人地址: CH Baden
- 代理机构: Taft Stettinius & Hollister LLP
- 代理商 J. Bruce Schelkopf
- 优先权: EP12007164 20121016
- 主分类号: H02H9/02
- IPC分类号: H02H9/02 ; H02H3/08 ; H02H3/44 ; H02H7/04 ; H02H7/26 ; H02H7/28
摘要:
An exemplary electrical network in form of a ring system includes a plurality of infeed transformers which are arranged in parallel between a sourcing busbar/cable system and a ring load busbar/cable system. A junction point connects each infeed transformer to the ring load busbar/cable system. The network includes a plurality of current limiters, where each current limiter is positioned between two junction points. Upon a fault event of an infeed transformer, two current limiters on both sides of a respective junction point of the faulted infeed transformer are simultaneously tripped in order to reduce current in the ring load busbar/cable system.