直流线路绝缘子自然积污污秽颗粒粒径分布特征

发布时间：2018-04-16 12:31

本文选题：线路绝缘子 + 激光粒度法　；参考：《高电压技术》2017年09期

【摘要】：粒径是影响绝缘子积污的重要因素之一。为此采用激光粒度法对±660 k V银东直流输电线路长期积污后的线路绝缘子表面污秽颗粒进行粒径测量、统计分析,并区分不同带电形式、上下伞面、与导线间不同距离、绝缘子不同材质等,讨论线路绝缘子自然积污的特性和分布规律。统计结果表明:激光粒度法干法测试线路绝缘子污秽粒径,其结果服从对数正态分布;负极线路污秽中10μm以下的小颗粒物含量略多于正极线路;绝缘子上、下表面污秽粒径分布范围大致相同,上表面平均粒径略大于下表面;离导线距离越近,细颗粒物含量越高;所有粒径参数范围内,复合绝缘子污秽颗粒的粒径均小于瓷绝缘子。不同条件下的污秽粒径分布差异,是由于污秽所受的力不同及绝缘子材质不同引起的。
[Abstract]:Particle size is one of the important factors affecting insulator fouling.In this paper, the particle size of contaminated particles on insulator surface of 卤660 kV silver east DC transmission line after long-term fouling is measured by laser particle size method, statistical analysis is made, and different live forms, upper and lower umbrella surfaces, and different distances from conductors are distinguished.The characteristics and distribution of natural fouling of insulators are discussed in this paper.The statistical results show that the particle size of insulator contamination is measured by laser particle size method, the result is from logarithmic normal distribution, the content of small particles below 10 渭 m in the pollution of negative electrode line is slightly higher than that of positive pole line, and on the insulator,The average particle size of the upper surface is slightly larger than that of the lower surface; the closer the distance from the wire, the higher the content of fine particles; in the range of all particle size parameters, the particle size of composite insulator is smaller than that of porcelain insulator.The difference of contamination particle size distribution under different conditions is caused by different force and insulator material.
【作者单位】：国网山东省电力公司电力科学研究院;
【基金】：国网山东省电力公司科技项目(52062614003N)~~
【分类号】：TM216;TM75

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