摘要
此文建立了110 kV一体化防雷绝缘子的二维非对称模型,采用有限元软件研究其在清洁状态、不同空气间隙位置、不同覆雪厚度和液态水含量下的电场分布特性,并与普通绝缘子进行对比。仿真分析结果阐明了覆雪厚度、空气间隙位置、相对介电常数等因素对110 kV一体化防雷绝缘子电场分布的影响规律。基于仿真结果,提出了该新型结构的绝缘子在运行时应采取的防覆雪闪络措施。
In this paper a two-dimensional asymmetrical model of 110 kV integrated lightning protection insulators is established,the finite element software is used to study the characteristics of electric field distribution under clean state,different air gap positions,different snow thickness and liquid water content which are compared with ordinary insulators.The simulation results illustrate the influence of the factors such as snow thickness,air gap position and relative dielectric constant on the electric field distribution of 110 kV integrated lightning protection insulators.Based on the simulation results,the measures which should be taken to prevent snow flashover when this new structure insulator is in operation are put forward.
作者
朱海南
王涛
王琰
刘明
王娟娟
咸日常
尹彬
ZHU Hainan;WANG Tao;WANG Yan;LIU Ming;WANG Juanjuan;XIAN Richang;YIN Bin(State Grid Weifang Power Supply Company,Weifang 261000,China;School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049,China;Shandong Xunshi Electric Co.,Ltd.,Zibo 255086,China)
出处
《国网技术学院学报》
2020年第1期1-6,共6页
Journal of State Grid Technology College
基金
国网山东省电力公司科技项目(项目编号:5206041700J4)。
关键词
覆雪
一体化防雷绝缘子
电场强度
空气间隙
相对介电常数
snow accretion
integrated lightning protection insulator
electric field strength
air gap
relative dielectric constant
