绝缘子表面局部等值盐密测量方法  

Research on Partial Equivalent Salt Deposit Density for Insulator

作　　者：梅红伟[1] 曹彬[1] 王耿耿[1] 董弘川 赵晨龙[1] 王黎明[1] 关志成[1] 伏祥运 

机构地区：[1]清华大学深圳研究生院,广东省深圳市518055 [2]国网连云港供电公司,江苏省连云港市222004

出　　处：《电网技术》2016年第4期1289-1294,共6页Power System Technology

基　　金：国家自然科学基金项目(51307094)~~

摘　　要：绝缘子等值盐密(equivalent salt deposit density,ESDD)是描述绝缘子表面污秽度的重要参数,但其不能用于测量自然条件下绝缘子表面污秽随时间的变化情况,也很难测量污秽在绝缘子表面的分布情况。为研究绝缘子的积污规律,提出了一种绝缘子局部等值盐密(partial equivalent salt deposit density,PESDD)的测量方法,并设计了一种测量PESDD的装置。利用抗干扰能力强的双圆柱结构电极探头,通过控制测试时的用水量以及提高测试用水的初始温度,实现对绝缘子表面PESDD的准确测量,并在此基础上,给出PESDD与ESDD的对应关系。自然污秽绝缘子的试验结果证实了所提PESDD测量方法的有效性以及在现场应用的可行性。Equivalent salt deposit density（ESDD） is an important parameter to describe contamination on insulator surface, but ESDD cannot reflect contamination distribution on insulator surface and be measured over time under natural conditions. In order to measure insulator contamination on-site and analyze contamination distribution, a novel method measuring partial equivalent salt deposit density（PESDD） and its instrument were proposed. By controlling water consumption and improving initial temperature of test water, PESDD can be measured accurately with double cylindrical electrode. PESDD test results using naturally polluted insulators show that this method is effective and feasible in engineering practice.

关 键 词：绝缘子 污秽度 等值盐密 局部等值盐密 测量电极 

分 类 号：TM85[电气工程—高电压与绝缘技术]