高电压技术2017，Vol.43Issue(9)：2935-2942,8.DOI:10.13336/j.1003-6520.hve.20170831022
直流线路绝缘子自然积污污秽颗粒粒径分布特征
Particle Size Distribution Characteristics of Naturally Polluted Insulators in Service of HVDC Transmission Line
摘要
Abstract
Particle size is one of the important factors that affect the insulator contamination accumulation.The long-term insulator contaminations of the Yin-Dong HVDC transmission line are used as the study subject,and particle size measurements and statistical analysis are conducted by laser particle method.Thereby,the effects of different forms of charged,the upper and lower surfaces,different distances from the insulators to the transmission lines and different insulator materials on the contamination particle size distribution characteristics and rules are discussed.The experimental results indicate that the results by laser particle size analysis-dry method obey a logarithmic normal distribution;The small particles below 10 μmin the negative transmission line are slightly more than that of the positive transmission line;Distribution ranges of the contamination palticle size from the upper surfaces and the lower surface are roughly the same,and the mean particle size of the upper surface is larger than that of the lower interface;The closer the distance from the line is,the higher the content of fine particles will be;In the range of all particle sizes,the contamination particle sizes of the composite insulators are smaller than those of the porcelain insulators.The difference of the particle size distribution under different conditions is due to the different force states of the contaminated particles and the different material of the insulators.关键词
线路绝缘子/激光粒度法/自然积污/污秽/粒径分布Key words
line insulators/laser particle method/natural pollution/contamination/particle size distribution引用本文复制引用
张燕,苏建军,刘辉,李杰,张永,刘国强..直流线路绝缘子自然积污污秽颗粒粒径分布特征[J].高电压技术,2017,43(9):2935-2942,8.基金项目
国网山东省电力公司科技项目(52062614003N).Project supported by Science and Technology Project of State Grid Shandong Electric Power Company (52062614003N). （52062614003N）
