Title :
Research on the micro-void discharge in power frequency and high frequency
Author :
Qifu Lu ; Qizheng Ye ; Hong Lv ; Xingwang Li ; Chu Yang ; Siyang Wu
Author_Institution :
Electr. Power Res. Inst., Guangdong Power Grid Corp., Guangzhou, China
Abstract :
In this paper, a type of typical PD source, micro-void discharge, is designed and fabricated to imitate the defects in GIS online. The void in solid insulation is carved by the laser inside-carving machine and the machining operation, respectively. Comparing these two kinds of void discharge, a single void discharge form can be obtained using the void carved by the laser inside-carving machine. The void discharge characteristics in power frequency and high frequency are also compared and analyzed. The singleness of discharge forms in high frequency is better. The experimental results will be applied in PD monitoring and materials testing.
Keywords :
gas insulated switchgear; laser beam machining; materials testing; partial discharges; voids (solid); GIS; gas insulated switchgear; laser inside-carving machine; machining; materials testing; microvoid discharge; partial discharge monitoring; Discharges (electric); Fault location; Gas insulation; Lasers; Machining; Partial discharges;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2013 IEEE Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CEIDP.2013.6748219
