中国电机工程学报Issue(27)：4724-4730,7.DOI:10.13334/j.0258-8013.pcsee.2014.27.020
500 kV输电线路绝缘子串带电水冲洗
Research on Hot Washing Technology of 500 kV Transmission Line Insulator Strings
黄松波 1王祖林 1樊亚东 1王建国 1胡毅 2周杰 1李显强 1蔡力1
作者信息
- 1. 武汉大学电气工程学院，湖北省 武汉市 430072
- 2. 中国电力科学研究院，北京市 海淀区 100192
- 折叠
摘要
Abstract
Hot washing is one of the widely used measures preventing pollution flashover for its advantages of high washing efficiency, needlessness of power-off and low-cost. 110 and 220 kV hot washing has launched while 500 kV hot washing hasn’t conducted. 500kV transmission line hot washing test of single-string artificially polluted insulators was progressed at b, c, d, e four contamination degrees. Four-cycle and six-cycle hot washing method were compared. Leakage current (LC) waveform characteristics and impact of surface contamination degree on LC were compared, including statistical LC maximum value, fundamental amplitude, etc.. Test results show that there is LC amplitude sudden-rise phenomenon in hot washing process in upper section of insulator string. LC fundamental amplitude of the two methods are less than 6 mA, while six-cycle hot washing method is more less than that of four-cycle.500 kV transmission line single-string insulators hot washing is safe, when safety distance, water resistivity and effective spray range are controlled.关键词
500 kV 输电线路/污秽绝缘子/带电水冲洗/冲洗方法/泄漏电流/污秽度Key words
500 kV transmission line/artificially polluted insulator/hot washing/washing method/leakage current/contamination degree分类
信息技术与安全科学引用本文复制引用
黄松波,王祖林,樊亚东,王建国,胡毅,周杰,李显强,蔡力..500 kV输电线路绝缘子串带电水冲洗[J].中国电机工程学报,2014,(27):4724-4730,7.
