发明名称 ELECTRIC CURRENT MEASURING DEVICE, CURRENT SENSOR, ELECTRIC TRIP UNIT AND BREAKING DEVICE COMPRISING SUCH A MEASURING DEVICE
摘要 The Rogowski type current measuring device comprises at feast three coils ( 2) electrically connected in series and forming a closed polygonal outline designed to surround a conductor (7) to perform current measurement. The local inductanc e of at least one of the ends (A) of said coils (2) is greater than the local inductance towards the central part (B) of said coils.
申请公布号 CA2504229(A1) 申请公布日期 2005.11.13
申请号 CA20052504229 申请日期 2005.04.11
申请人 SCHNEIDER ELECTRIC INDUSTRIES SAS 发明人 TOTI-BUTTIN, FREDERIC;BUDILLON, GILLES;BUFFAT, SEBASTIEN;HOUBRE, PASCAL
分类号 G01R15/18;(IPC1-7):G01R19/00;H02H3/08 主分类号 G01R15/18
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