公开(公告)号：EP1166132A1

公开(公告)日：2002-01-02

申请号：EP00972804.9

申请日：2000-10-18

申请人： ABB Service Srl

发明人： MANARA, Angelo ,  DE BORTOLI, Eros ,  DI RIENZO, Luca ,  PIAZZESI, Alice

IPC分类号： G01R15/20

CPC分类号： G01R15/20

摘要： A current sensing device, particularly for low-voltage power switches, whose particularity consists of the fact that it comprises: multiple magnetic field sensors which are suitable to be arranged around at least one current conductor element whose current measurement is to be obtained, the sensors performing a spot measurement of the magnetic fields; signal processing means which are suitable to receive current measurement signals which arrive from the multiple magnetic field sensors; the positioning and orientation of the multiple sensors around the at least one conductor element being determined so as to optimize the measurement precision of the sensors.