Influence of Water Band on AC Flashover Characteristics and Electric Field Distribution of Hydrophobic Surface

被引：0
|
作者：
Liu S. [1 ]
Li W. [1 ]
Li Z. [2 ]
Pan L. [1 ]
机构：
[1] Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin
[2] Jilin Power Supply Company State Grid Jilinsheng Electric power Supply Company, Jilin
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2022年 / 37卷 / 21期
关键词：
arc development; Composite insulator; electric field; hydrophobic; water band;
D O I：
10.19595/j.cnki.1000-6753.tces.211181
中图分类号：
学科分类号：
摘要：
When the hydrophobicity of the composite insulator is weakened, the surface of the composite insulator is easy to gather water droplets to form a water band in the wet environment, which affects the surface electric field distribution and surface flashover characteristics of the insulator. In this paper, a PTFE board is used to simulate the formation environment of the water band, and the influence of the shape of the linear and broken water band on the flashover process of the hydrophobic surface is experimentally studied. Based on the finite element numerical calculation, the electric field distribution of the water band and its surroundings is analyzed, and combined with the test results, the mechanism of influence of the water band on the arc development path is discussed. The results show that the smaller the opening angle θ of the water band is, the smaller the water band electric field becomes, and the larger the dry band electric field between the water bands will be. At the same time, the smaller the water band spacing d is, the larger the dry band electric field will be. When there is a broken-line water band on the water surface, the arc shows three different development paths according to the difference of θ and d. © 2022 Chinese Machine Press. All rights reserved.
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页码：5570 / 5577
页数：7
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共 23 条
  • [1] Liang Xidong, Gao Yanfeng, Wang Jiafu, Et al., Rapid development of silicone rubber composite insulator in China, High Voltage Engineering, 42, 9, pp. 2888-2896, (2016)
  • [2] Su Zhiyi, Fan Jianbin, Research on reliability of composite insulators used in EHV and UHV DC transmission lines, Power System Technology, 30, 12, pp. 16-23, (2006)
  • [3] Chao Yafeng, Wang Cheng, Huang Fuyong, Et al., Assessment on operation state of composite insulators used on Chinese transmission lines, High Voltage Apparatus, 51, 8, pp. 119-124, (2015)
  • [4] Sun Wenjian, Li Yawei, Liu Xuandong, Et al., Influence mechanism of UV on surface hydrophobicity of composite insulators in high altitude areas, Power System Technology, 42, 3, pp. 996-1000, (2018)
  • [5] Dai Hanqi, Sun Yue, Wang Liming, Pollution flashover for composite insulators based on characteristic parameter Kh10, Transactions of China Electrotechnical Society, 35, 24, pp. 5207-5217, (2020)
  • [6] Rowland S M, Xiong Y, Robertson J, Et al., Aging of silicone rubber composite insulators on 400kV transmission lines, IEEE Transactions on Dielectrics and Electrical Insulation, 14, 1, pp. 130-136, (2007)
  • [7] Lu Yukun, Song Qingzhuang, Wang Zhaopeng, Et al., Simulation of fouling characteristics of XSP-160 porcelain three umbrella insulators under low wind speed, Transactions of China Electrotechnical Society, 35, 10, pp. 2257-2265, (2020)
  • [8] Zhang Chongxing, Ren Ming, Zhou Jierui, Et al., Analysis for partial discharges behavior in SF6 gas filled void in gas insulated switchgear under oscillating switching impulses, Transactions of China Electrotechnical Society, 34, 14, pp. 3074-3083, (2019)
  • [9] Han Xingbo, Jiang Xingliang, Huang Yafei, Et al., Icing properties of composite insulator and droplet movement under DC electric field, Transactions of China Electrotechnical Society, 35, 9, pp. 2042-2050, (2020)
  • [10] Li Jian, Wang Xiangwen, Huang Zhengyong, Et al., Research of preparation, anti-icing and anti-pollution of super hydrophobic insulation coatings, Transactions of China Electrotechnical Society, 32, 16, pp. 61-75, (2017)
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