Validity Analysis of Detection Means for 110～220 kV Capacitive Type Equipment
Xiaoning Fan · Electrical Equipment · 2008
Through 3 examples of insulation defect detection of the phase B current transformer on 220 kV bus and by-pass in Huanggong Substation,110 kV wall bushing in Dashankou Hydropower Station,220 kV phase B bushing of No.3 main transformer in Chahanwusu Hydropower Station,the paper introduced the detection data of normal and abnormal capacitive type equipment.At the same time,through the verification result of defective equipment after detection,the validity of tan δ,Cx detection on-the-spot was further confirmed for present 110~220 kV capacitive type equipment in Xinjiang area.