高压电器2018，Vol.54Issue(1)：9-15,7.DOI:10.13296/j.1001-1609.hva.2018.01.002
具有防雷功能的500kV防冰闪绝缘子结构设计及电场仿真研究
Structure Design and Electric Field Simulation Research on 500 kV Anti-icing Flash Insulator with Lightning Protection Function
摘要
Abstract
Lightning and ice-coating are two natural disasters faced by transmission line,serious threat to the stable operation of power grid.Combined arrester with insulation,the paper design a kind of 500 kV lightning and icing protection composite insulator with the method of lightning impulse and AC flashover test;in addition,the electrical field analyzes on 500 kV lightning and icing protection composite insulator is made by finite element method.The study on clean and icing conditions found that the local high field strength region focus on high voltage section as well as the junction between insulation section and lightning protection section;meanwhile,the maximum field strength is 18.1 kV/cm,which meet the requirements of the field operation.By means of gap lightning impulse tests,it can obtain a better lightning protection effect when an insulation segment with 1.8 meters corona ring gap is in series with arrester.关键词
绝缘子/防冰防雷/场强计算/电弧自熄/有限元法Key words
insulator/lightning and icing protection/field strength calculation/arc self-extinction/finite element method引用本文复制引用
吴伟,蒋正龙,陆佳政,方针,胡建平,王博闻..具有防雷功能的500kV防冰闪绝缘子结构设计及电场仿真研究[J].高压电器,2018,54(1):9-15,7.基金项目
国家电网公司科技项目(5216A015001N).Project Supported by Science and Technology Department of SGCC (5216A015001N). （5216A015001N）
