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公开(公告)号:WO2014102445A8
公开(公告)日:2014-11-06
申请号:PCT/FI2012051308
申请日:2012-12-28
Applicant: ABB OY
Inventor: TAKALA MARKO , KENTALA TERO , MATTLAR HARRI , KÄHKIPURO MATTI , RANTANEN TOMMI
CPC classification number: G01R31/2827 , G01R31/013 , H01C7/12 , H02H3/05 , H02H3/20
Abstract: The invention relates to a method and an arrangement for determining an end-of-life of an overvoltage protection element (2) by determining (101) a predefined voltage limit based on a nominal voltage, determining (102) a measuring voltage across switch components (5) of the switch arrangement in connection with a switch-off event, and determining (103) that the overvoltage protection element (2) has reached its end-of-life when the measuring voltage is equal to or lower than the predefined voltage limit.
Abstract translation: 本发明涉及一种用于通过基于标称电压确定(101)预定电压极限来确定过压保护元件(2)的寿命终止的方法和装置,确定(102)跨过开关部件 (5),以及当测量电压等于或低于预定电压时确定(103)过电压保护元件(2)已达到其使用寿命 限制。
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公开(公告)号:FI11880U1
公开(公告)日:2017-12-05
申请号:FIU20174211
申请日:2017-09-15
Applicant: ABB OY
Inventor: SUUTARINEN AKI , RAJALA MATTI , SILLANPÄÄ RAIMO , FREDLUND JURI , LÖNN MARKUS , PYLKÄS MARKO , KENTALA TERO
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