| GIS盆式绝缘子表面缺陷的局部放电检测 |
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| 引用本文： | 徐洋,周电波,丁登伟,刘卫东,高文胜.GIS盆式绝缘子表面缺陷的局部放电检测[J].高压电器,2020(5):101-106. |
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| 作者姓名： | 徐洋 周电波 丁登伟 刘卫东 高文胜 |
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| 作者单位： | 清华大学电机系电力系统及发电设备控制与仿真国家重点实验室;国网苏州供电公司;国网四川省电力公司电力科学研究院;清华四川能源互联网研究院 |
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| 基金项目： | 国网四川省电力科学研究院科研项目(变压器声电联合检测与故障定位关键试验技术研究)。 |
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| 摘 要： | 盆式绝缘子是GIS设备中故障率较高的部件之一,尤其是盆式绝缘子的沿面闪络,对于GIS运行的安全性威胁极大。因此,对盆式绝缘子上可能引起故障的缺陷,特别是绝缘表面缺陷进行状态检测,以预防绝缘故障的产生,是现阶段研究的热点问题之一。文中以一个存在表面缺陷的实际GIS盆式绝缘子为例,使用多绝缘子对照方法测试了样品在高电压作用下的局部放电特性,并使用光电效应对实验结果进行了验证。根据实验结果对数据进行了分析,发现了放电伴随的光脉冲的强度与放电频率之间的相关性。文中的研究内容对于盆式绝缘子表面缺陷在现场的检测识别,以及绝缘子制造工艺的改进具有重要的参考意义。
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| 关 键 词： | GIS 盆式绝缘子 表面缺陷 局部放电 |
Detection of Partial Discharge Induced by Surface Defect of GIS Basin Insulators |
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| XU Yang,ZHOU Dianbo,DING Dengwei,LIU Weidong,GAO Wensheng.Detection of Partial Discharge Induced by Surface Defect of GIS Basin Insulators[J].High Voltage Apparatus,2020(5):101-106. |
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| Authors: | XU Yang ZHOU Dianbo DING Dengwei LIU Weidong GAO Wensheng |
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| Affiliation: | (State Key Lab.of Power System,Dept.of Electrical Engineering,Tsinghua University,Beijing 100084,China;State Grid Suzhou Power Supply Company,Jiangsu Suzhou 215004,China;State Grid Sichuan Electric Power Research Institute,Chengdu 610041,China;Sichuan Energy Internet Research Institute of Tsinghua University,Chengdu 610213,China) |
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| Abstract: | For the purpose of defect state monitoring and diagnosis of the basin insulators in GIS,experiment is car⁃ried out on a basin insulator with surface defects,and the characteristics of partial discharge(PD)are detected and compared with that of an eligible insulator.Moreover,the experimental results are verified with the results of photo⁃electric effect⁃based PD detecting method,and the correlation between the optical intensity and the frequency of the PD pulses is obtained on the basis of the analysis on the experimental data.This research may be beneficial to the on⁃site detection and recognition of the surface defects on GIS basin insulators,as well as to the improvement of the man⁃ufacturing technique of GIS insulators. |
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| Keywords: | GIS basin insulator surface defect partial discharge |
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