高电压技术2018，Vol.44Issue(6)：1891-1897,7.DOI:10.13336/j.1003-6520.hve.20180529022
长棒形瓷绝缘子交流污闪特性与污闪电压提高措施
AC Pollution Flashover Performance and Anti-pollution Precaution of Porcelain Long Rod Insulator
摘要
Abstract
In order to design anti-pollution flashover strategy for porcelain long rod insulator, the pollution flashover performance needs to be investigated. Consequently, we analyzed the contaminant distribution and composite of porcelain long rod insulator in AC 500 kV transmission line, and studied the influences of contaminant distribution and composite on the AC pollution flashover performance of porcelain long rod insulator. Moreover, we discussed the application of porcelain long rod insulator in UHVAC transmission line, and compared RTV and composite assistant shed on anti-pollution effect. There is more contaminant accumulated on leeward side and big shed bottom surface of porcelain long rod insulator. Contaminant unevenness on top and bottom surface increases the pollution flashover voltage, while contaminant unevenness on windward and lee side decreases the pollution flashover voltage of porcelain long rod insulator. With the increase of CaSO4 content, pollution flashover voltage of porcelain long rod insulator increases. Pollution flashover voltage has a linear relation with the string length of porcelain long rod insulator. RTV coating and composite assistant shed can increase the pollution flashover voltage of porcelain long rod insulator while the effect of RTV coating is more significant.关键词
长棒形瓷绝缘子/污闪/积污/RTV涂料/增爬裙Key words
porcelain long rod insulator/pollution flashover/contaminant accumulation/RTV coating/composite assistant shed引用本文复制引用
高嵩,张佰庆,崔艳东,刘思逸,杨帅..长棒形瓷绝缘子交流污闪特性与污闪电压提高措施[J].高电压技术,2018,44(6):1891-1897,7.基金项目
国家电网公司项目:面向电网的雾霾气象预警及评估技术研究与应用.Project supported by Science and Technology Project of SGCC: Research and Application of Haze Meteorological Forecasting and Evaluation Technology for Power Grid. （）
