Title :
Variation of surface charge distribution in the process of PD degradation
Author :
Cheng Pan ; Yongpeng Meng ; Kai Wu
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
Because partial discharge (PD) in air-filled void embedded in the insulation system can cause the degradation and eventual insulation failure, it´s necessary to study the PD mechanism. Our paper employed the equipment based on Pockels effect to investigate the change of surface charges distribution in the process of PD degradation. During PD sequences, the effect of previous discharge on subsequent discharge was also examined.
Keywords :
Pockels effect; partial discharge measurement; surface charging; PD degradation; Pockels effect; air filled void; insulation system; partial discharge; surface charge distribution; Aging; Discharges (electric); Measurement by laser beam; Partial discharges; Surface discharges; Surface impedance; Surface treatment; Pockels effect; aging; memory effect; partial discharge; surface charge;
Conference_Titel :
Electrical Insulating Materials (ISEIM), Proceedings of 2011 International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-4-88686-074-3
DOI :
10.1109/ISEIM.2011.6826363
