广东电力2025，Vol.38Issue(3)：122-130,9.DOI:10.3969/j.issn.1007-290X.2025.03.013
瓷绝缘子伞裙包覆硅橡胶对电场分布影响的仿真研究
Simulation Study on Influence of Porcelain Insulator Sheds Coated with Silicone Rubber for Electric Field Distribution
摘要
Abstract
The disk-shaped suspended hybrid insulator is composed of a complete disk-shaped suspended porcelain or glass insulator and a high temperature vulcanized silicone rubber coating.The outer insulation coating is made by a high temperature vulcanized integral injection molding process.However,the coating of the silicone rubber will affect the electric field distribution of the insulator.Therefore,the finite element method is used to simulate the electric field of the hybrid porcelain insulator with different thickness silicone rubber coating and the hybrid porcelain insulator string in the 1 000 kV ultra high voltage(UHV)transmission line.The research discovers that with the increase of the thickness of the silicone rubber coating,the maximum electric field intensity of the iron cap increases,and the maximum electric field intensity of the steel foot decreases.With the increase of the gap distance between the coating and the iron cap,the maximum electric field strength of the iron cap decreases,and the electric field strength of the steel foot is almost unchanged.Considering the electrical performance and manufacturing process,it is recommended that the thickness of the silicone rubber coating is 3 mm,and the gap between the coating and the iron cap is 1 mm.In the 1 000 kV AC transmission line,the voltage distribution of the hybrid porcelain insulator and the porcelain insulator string is not much different.The maximum absolute value of the partial voltage difference of each insulator is 0.21 kV,the gap range is 0～0.42％,and the maximum difference in electric field intensity along the insulator string is 1.57 kV/cm.关键词
混合绝缘子/高温硫化硅橡胶/有限元/特高压/输电线路/电场分布Key words
hybrid insulator/high temperature vulcanized silicone rubber(HTV)/finite element/ultra high voltage(UHV)/transmission line/electric field distribution分类
信息技术与安全科学引用本文复制引用
彭向阳,刘琳,杨仟慧,王羽..瓷绝缘子伞裙包覆硅橡胶对电场分布影响的仿真研究[J].广东电力,2025,38(3):122-130,9.基金项目
中国南方电网有限责任公司科技项目(GDKJXM20222609) （GDKJXM20222609）
中国博士后科学基金面上项目(2024M750567) （2024M750567）
