500kv输电线路绝缘子串带电水冲洗_黄松波.pdf

34 27 Vol.34 No.27 Sep.25, 2014 4724 2014 9 25 Proceedings of the CSEE ©2014 Chin.Soc.for Elec.Eng. DOI 10.13334/j.0258-8013.pcsee.2014.27.020 0258-8013 (2014) 27-4724-07 TM 84 500 kV  1 1 1 1 2 1 1 1 (1 430072 2 100192) Research on Hot Washing Technology of 500 kV Transmission Line Insulator Strings  1 1 1 1 2 1 1 1 HUANG Songbo , WANG Zulin , FAN Yadong , WANG Jianguo , HU Yi , ZHOU Jie , LI Xianqiang , CAI Li (1. School of Electrical Engineering, Wuhan University, Wuhan 430072, Hubei Province, China; 2. China Electric Power Research Institute, Haidian District, Beijing 100192, China) ABSTRACT: Hot washing is one of the widely used measures 500 kV  preventing pollution flashover for its advantages of high washing efficiency, needlessness of power-off and low-cost. 0 110 and 220kV 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 [1] 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