广东工业大学学报2012，Vol.29Issue(2)：58-62,5.DOI:10.3969/j.issn.1007-7162.2012.02.011
污湿环境下复合绝缘子电场分布的研究
A Study of Electric Fields Around Composite Insulators under Polluted and Wet Conditions
摘要
Abstract
Electric-field characteristics of composite insulators under polluted and wet conditions can effectively reduce the risk of composite insulator flashover. The surface thickness and uniformity of composite insulators were researched, and the simulation model for two-dimensional electric fields of 110 kV composite insulators was established via the software Comsol Multiphysics. The finite element method was applied to calculate the potential and field distribution for 110 kV under polluted and wet conditions. The research shows that the effect of uniform water is related with pollution layer conductivity, and that the umbrella group of the composite insulator near the high voltage supports higher voltage if pollution layer conductivity increases to 10 ~7S. When there are drops dripping on the surface of the composite insulator, the electric field intensity surrounding the drops grows rapidly.关键词
污湿环境/复合绝缘子/污层电导率/电场强度/电位分布Key words
polluted and wet conditions/ composite insulator/ pollution layer conductivity/ electric field/ potential distribution分类
信息技术与安全科学引用本文复制引用
张海兵,田甜,文旭..污湿环境下复合绝缘子电场分布的研究[J].广东工业大学学报,2012,29(2):58-62,5.基金项目
教育部高等学校博士点专项科研基金资助项目(20090191120019) （20090191120019）
国家电网公司科技项目(渝电KJ(2010)419) （渝电KJ(2010）
