高电压技术2011，Vol.37Issue(3)：606-612,7.
复合绝缘子加装超大伞裙结构的污闪特性
Pollution Flashover Characteristics of Composite Insulators Installed Extra Large Sheds
摘要
Abstract
In order to improve the outdoor insulation performance of composite insulator used in coastal areas and to inhibit its pollution discharge phenomenon, a novel method that different number of extra large sheds were installed in different locations of composite insulator to raise its creepage distance and to improve its pollution flashover char acteristics was specially proposed. As the flashover characteristic of composite insulator is not only directly related to its creepage distance, but also closely related to its shape and structure, it is necessary to obtain the flashover characteristics of composite insulators installed different extra large sheds by the artificial pollution test and then to obtain the optimal structures installing the extra large sheds on composite insulator. Thereby, two commonly used 220 kV composite insulators were taken as the research objects, many new composite insulators installed extra large sheds were produced. The optimal structures installing extra large sheds on these insulators were gained by the arti ficial pollution test. The test results show that it is effective method to improve the pollution flashover characteris tics of composite insulator by installing extra large sheds and also to provide an important basis for the application in the coastal field.关键词
沿海输电线路/复合绝缘子/污闪特性/爬电距离/超大伞裙/人工污秽试验Key words
coastal transmission line/ composite insulator/ flashover characteristic/ creepage distance/ large shed/artificial pollution test分类
信息技术与安全科学引用本文复制引用
梅红伟,陈金君,彭功茂,李健,王黎明,关志成..复合绝缘子加装超大伞裙结构的污闪特性[J].高电压技术,2011,37(3):606-612,7.基金项目
国家重点基础研究发展计划(973计划)(2009CB724503). （973计划）
