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    ELEKTRISCHE VORRICHTUNG FÜR DEN KURZSCHLUSSSCHUTZ EINER DREHSTROMLAST IN EINEM DREHSTROMSYSTEM
    2.
    发明公开
    ELEKTRISCHE VORRICHTUNG FÜR DEN KURZSCHLUSSSCHUTZ EINER DREHSTROMLAST IN EINEM DREHSTROMSYSTEM 有权
    短路保护ONE最后阶段电器在三相系统

    公开(公告)号：EP2686928A1

    公开(公告)日：2014-01-22

    申请号：EP12713625.7

    申请日：2012-03-15

    申请人： Phoenix Contact GmbH & Co. KG

    发明人： SCHAPER, Elmar ,  DURTH, Rainer ,  HEUER, Lutz ,  SCHULZ, Bernd

    IPC分类号： H02H3/02 ,  H02H3/08

    CPC分类号： H02H3/083 ,  H02H3/023

    摘要： The subject matter of the invention is an apparatus for the short-circuit protection of a three-phase load (1) in a three-phase system, comprising an input for connecting the apparatus (2, 3, 4) to a three-phase power supply system (5), an output for connecting the three-phase load (1) to the apparatus (2, 3, 4), a means for producing an auxiliary short circuit (4) in the three-phase power supply system (5) by triggering the means (4), a means for identifying a short circuit (2) on the three-phase load (1), and a means for generating a triggering pulse (3) when the short circuit is identified, wherein the means for producing the auxiliary short circuit (4) and the means for identifying the short circuit (2) are provided in the current path between the input and the output, and the means for producing the auxiliary short circuit (4) can be triggered by the triggering pulse.