高电压技术2011，Vol.37Issue(3)：562-569,8.
输电线路绝缘子湿增长覆冰特性及防冰涂料试验研究
Characteristics of Wet Growth Icing and Eperimental Investigation of Anti-icing Material of Transmission Line Insulators
摘要
Abstract
Ice accumulation on insulators and transmission lines imposes serious problems on power systems, and se rious incidents happen occasionally due to the lack of effective countermeasures. We introduced the recently progress of the work by Laboratory of Advanced Technology of Electrical Engineering &. Energy at Tsinghua University on the artificial icing test methods and anti-icing material for insulators. Unlike the commonly used icing methods which focused on making the ice weight and shape similar to the natural icing, we proposed a methods to make the icing speed as close as the wet-growth in natural conditions by choosing the size of the water droplets and the ambient temperature. A semiconducting coating was investigated, and the surface heating effect and anti-icing performance were tested. The anti-icing performances of these RTV silicone rubber coatings on short insulators strings of three pieces insulators with different leakage current magnitudes were compared in a climate chamber, and the sufficient leakage current for anti-icing was derived from the experiments. The results show that the surface heating effect, together with the hydrophobicity, can significantly reduce the formation of ice on insulators.关键词
绝缘子覆冰/半导电涂层/泄漏电流/憎水性/焦耳热/人工覆冰试验Key words
insulator icing/ semiconducting coating/ leakage current/ hydrophobicity/ Joule's heat/ artificial icing test分类
信息技术与安全科学引用本文复制引用
许志海,贾志东,关志成,李智宁,韦晓星,王黎明..输电线路绝缘子湿增长覆冰特性及防冰涂料试验研究[J].高电压技术,2011,37(3):562-569,8.基金项目
国家自然科学基金(51077081) （51077081）
国家重点基础研究发展计划(973计划)(2009CB724503). （973计划）
