PROTECTION OF AN INDUCTIVE ELEMENT
    4.
    发明公开

    公开(公告)号:EP3340410A1

    公开(公告)日:2018-06-27

    申请号:EP16206114.7

    申请日:2016-12-22

    申请人: ABB Schweiz AG

    IPC分类号: H02H9/00 H02H9/04 H02H7/12

    摘要: The invention concerns a protection arrangement (18) for a multiphase uninterruptible power supply system comprising a vacuum circuit breaker (S1a, S1b, S1c) connected in series with an inductive element (14), where the inductive element comprises, for every phase, two series-connected magnetically coupled windings (L1a, L2a, L1b, L2b, L1c, L2c) separated by a tap point (Ta, Tb, Tc). The protection arrangement (18) comprises one first group of protective components per phase, each first group comprising a first protective component (SA1a, SA1b, SA1c) having a first end connected to a link between the vacuum circuit breaker (S1a, S1b, S1c) and the inductive element (14) and a second end connected to a corresponding tap point (Ta, Tb, Tc), where at least one protective component in each first group is a surge arrester.