高电压技术2011，Vol.37Issue(4)：874-882,9.
500kV交流输电线路组合绝缘子串试验分析
Test Research on Insulator String with Various Materials for 500 kV AC Transmission Line
摘要
Abstract
In order to provide a reference to transmission engineering design, the voltage distribution of 500 kV transmission line insulator strings combined with composite insulator and cap and pin glass insulator is studied systematically. The different combination of insulating structure type is discussed by lots of potential distribution computation and measurement tests, including linking different pieces of glass insulators at the end of composite insulator, using sunken and carry type of suspension clamp, single I and double I string, whether using uniformity voltage fitting and so on. The new insulation configuration way is presented, in which the composite insulator can be avoided to operate in the high electric field region. It is shown that the maximum potential distribution of high voltage end fitting part of composite insulator using carry type of suspension clamp is reduced from 41% to 14% , when the composite insulators link to five glass insulators and keep the same structural height. It is also shown that the maximum potential distribution of high voltage end fitting part of composite insulator using carry type of suspension clamp is reduced from 41% to 11%,when the high voltage end of composite insulators links to six glass insulators and a glass insulator at the earth side of composite insulator. The lightning impulse flashover characteristics can also be improved.关键词
复合绝缘子/玻璃绝缘子/电压分布测量/组合绝缘子串/电场计算/设计优化Key words
composite insulator/ glass insulator/ potential distribution measurement/ insulator string with various materials/ electric field calculation/ design optimization分类
信息技术与安全科学引用本文复制引用
张锐,应伟国,黄道春,张勤,袁田,阮祥勇..500kV交流输电线路组合绝缘子串试验分析 [J].高电压技术,2011,37(4):874-882,9.基金项目
国家重点基础研究发展计划(973计划) (2009CB724503) （973计划）
浙江省电力公司科技项日(13070050812347). （13070050812347）
