公开(公告)号：US10126348B2

公开(公告)日：2018-11-13

申请号：US14943297

申请日：2015-11-17

申请人： Zalya Berler ,  Vladimir Prykhodko ,  Joe Watson

发明人： Zalya Berler ,  Vladimir Prykhodko ,  Joe Watson

IPC分类号： G01R31/02 ,  G01R31/06 ,  G01R31/12 ,  G01R31/28 ,  G01R31/34 ,  G01R31/42 ,  H02H3/00 ,  H02H3/16 ,  H02H7/04

摘要： A system for on-line bushing monitoring and geo-magnetically induced current monitoring utilizes a Hall Effect current transducer and obtains the harmonic component of the signals through the measurement of bushing test tap current which provides a more reliable measurement method since the bushings provide a capacitive voltage divider that is not subject to saturation which is a drawback of using current transformers to obtain the signals. The system combines the existing harmonic analysis functions of the bushing monitor measurement system with the measured neutral direct current to provide an economical and efficient system that monitors both bushing condition and GIC conditions with one common monitoring module.