高电压技术2012，Vol.38Issue(4)：885-891,7.
污秽绝缘子泄漏电流与环境温、湿度相关分析
Correlation Analysis of Contaminative Insulator Leakage Current、 Environmental Temperature and Humidity
摘要
Abstract
Since contaminative insulator leakage current is influenced clearly by environmental temperature and humidity,the research of relationship between leakage current,environmental temperature and humidity is of important practical significance.Based on single XP-70 insulator artificial contamination tests,current and voltage waveforms of contamination insulators with different equivalent salt deposit density（ESDD） and non-soluble deposit density（NSDD） in the environment of different temperatures and relative humidity were recorded with the use of leakage current measurement system and environmental factors acquisition system.A model including the leakage current,filthy condition,environment temperature,and humidity was established.Regression analysis was used to obtain an expression of relationship between the salt concentration,ash dense,temperature,humidity,and leakage current amplitude,and to obtain the quantitative relationship between leakage current,degree of contamination,environmental temperature,and humidity as Im=0.084ρ0.054ESDD（e0.008RH＋15.170e-0.069r-0.076/ρNSDD）·e0.026θ.Results show that,with the increase of ESDD,NSDD,temperature and relative humidity,the leakage current also gradually increases.In the form of expression,these trends can be expressed more accurately.Based on adequate data of the leakage current,environmental temperature,and humidity,the results can provide a method for assessing the state of contamination of XP-70 insulator.关键词
污秽绝缘子/泄漏电流/温度/相对湿度/回归分析/污秽程度Key words
contaminative insulator/leakage current/temperature/relatively humidity/regression analysis/contaminative degree分类
信息技术与安全科学引用本文复制引用
方春华,王建国,操平梅,王康..污秽绝缘子泄漏电流与环境温、湿度相关分析[J].高电压技术,2012,38(4):885-891,7.基金项目
国家自然科学基金 （）
