MIN Haibin, CHENG Hao, ZHANG Hao, ZENG Qingfeng, LUO Xiangyang. Cause Analysis and Treatment Measures for Leakage of Top Cover of 330 kV GIS Equipment[J]. International Journal of Plant Engineering and Management, 2019, 24(4): 231-242

Cause Analysis and Treatment Measures for Leakage of Top Cover of 330 kV GIS Equipment
MIN Haibin1, CHENG Hao2, ZHANG Hao2, ZENG Qingfeng3, LUO Xiangyang2
1. Hanzhong Iron and Steel Company Power Energy Center, Shaanxi Iron and Steel(Group) Co., Ltd., Shaanxi Hanzhong 724200, China;
2. Zhejiang Machinery Industry Information Institute, Hangzhou 310009, China;
3. Hangzhou Leichuang Science and Technology Co., Ltd., Hangzhou 310011, China
Based on the experience of GIS equipment maintenance, the causes of air leakage defects of GIS equipment running in a 330 substation were analyzed. After the equipment was disassembled, the main causes of air leakage were found, and a series of improvement measures were taken to eliminate the GIS equipment leakage defect. And the effective and feasible advice was put forward for this type of air leakage problem. The results lay a foundation for the safe and stable operation of GIS equipment.
Key words:    GIS equipment    air leakage    top cover    injection and sealing    treatment   
Received: 2019-08-25     Revised:
DOI: 10.13434/j.cnki.1007-4546.2019.0404
Corresponding author:     Email:
Author description:
PDF(312KB) Free
MIN Haibin
ZENG Qingfeng
LUO Xiangyang

[1] Hong G Y, Zhao Y Y, Chen B. Research and development of miniaturized sf6 gas insulated metal-enclosed switchgear[J]. High Voltage Apparatus, 2012,48(10):78-82(in Chinese)
[2] Xia W, Hu X H. 550 kV gas insulated metal-enclosed combined electrical appliance and its application[J]. High Voltage Apparatus, 2010,46(12):89-92(in Chinese)
[3] Gao S G, Liu H F, Pan W, et al. On-line detection and diagnosis of GIS internal component loosening faults[J]. High Voltage Apparatus, 2010,46(10):56-58(in Chinese)
[4] Zhou Y B, Wan S W, Zeng X W, et al. Analysis of 220 kV GIS gas leakage and basin insulator rupture[J]. Guangdong Electric Power, 2012,25(9):118-121(in Chinese)
[5] Li X W, Wang Q Y, Mao H Q, et al. Comprehensive analysis of internal insulation faults of combined electrical appliances[J]. High Voltage Apparatus, 2012,48(8):99-102(in Chinese)
[6] Luo H T, Huang W B, Zou H M, et al. Analysis of GIS internal latent fault cases[J]. China Electric Power, 2014,47(7):78-82(in Chinese)
[7] Ding D W, Tang C, Gao W S, et al. Spectral characteristics and propagation characteristics of typical partial discharges in GIS[J]. High Voltage Technology, 2014, 40(10):3243-3251(in Chinese)
[8] Li P J, Zhu X J, Yu T. Identification of partial discharge mode based on neural network GIS[J]. China Electric Power, 2013,46(10):60-66,83(in Chinese)
[9] Xu Y Z, Liu X, Hu Z H, et al. Leak detection technology of optical sf6 circuit breaker[J]. High Voltage Technology, 2009,35(2):250-254(in Chinese)
[10] Hu H H. Discussion on SF6 gas quantitative leak detection technology[J]. Electrical Engineering Abstracts, 2011,(3):10-14(in Chinese)
[11] Chen Z S. SF6 Gas density, humidity and leak detection technology for gis high voltage electrical apparatus[J]. Electrical Engineering, 2007,(4):16-20(in Chinese)
[12] Zhu B L. SF6 circuit breaker skill assessment training textbook[M]. Beijing:China Electric Power Press, 2003(in Chinese)
[13] Chen J B. Practical technology of circuit breaker[M]. Beijing:Institute of China Water Resources and Hydropower Press, 2004(in Chinese)
[14] Li G. Analysis of the causes of air leakage and humidity exceeding the standard of GIS equipment in Fangcun station[J]. High Voltage Apparatus, 2008,44(4):359-361(in Chinese)
[15] Tao A P, Yang Q H, Liu Y, et al. Analysis of the cause of GIS grounding failure[J]. High Voltage Apparatus, 2012,48(12):139-142(in Chinese)
[16] Guo C. SF6 gas management and leakage treatment in gis operation[J]. Electric Age, 2008,(1):98-101(in Chinese)
[17] Chen F, Wu G Z. Quality control of gas insulated metal-enclosed switchgear (GIS) installation[J]. Electric Power Construction, 2006,27(1):49-51(in Chinese)
[18] Li M Q. Improving the success rate of GIS equipment leakage treatment[J]. Shandong Electric Power Technology, 2010,(6):27-30(in Chinese)
[19] Zuo Y F. GIS equipment operation and maintenance and fault handling[M]. Beijing:China Electric Power Press, 2013(in Chinese)
[20] Tian P, Li F Y. On-site treatment process of gas leakage in GIS equipment[J]. Northeast Electric Power Technology, 2007,28(8):35-37(in Chinese)