装设增爬伞裙改善陶瓷绝缘子表面电场分布的仿真研究  

Simulation Study on the Surface Electrical Field Distribution of Ceramic Insulators with Booster Shed Installation

作　　者：胡日鹏 HU Ripeng(Baiyun Power Supply Bureau,Guangzhou Power Supply Co.,Ltd.,Guangzhou 510410,China)

机构地区：[1]广州供电局有限公司白云供电局,广东广州510410

出　　处：《电工技术》2018年第19期5-8,共4页Electric Engineering

摘　　要：针对当前沿海陶瓷绝缘子重污染区污闪问题和生产实践中对陶瓷绝缘子装设增爬伞裙以提高其抗闪络性能的技术手段,采用有限元仿真方法分析35kV绝缘子装设增爬伞裙前后的表面电场分布规律。基于绝缘子伞裙表面电场强度从内到外单调递减的仿真结果,提出用绝缘子各层伞裙边缘场强最大值表征绝缘子抗闪络能力的观点,并比较了伞裙装设位置和装设数量对提高抗污闪性能的效果,找出最优安装方式,对生产实践起到直接指导作用。Aiming at the flashover problem on ceramic insulators in heavily polluted coastal area,and the practice of installing booster sheds to improve the anti-flashover performance of ceramic insulators,finite element simulation method was applied to a 35kV ceramic insulator to analyze the electrical field intensity distribution on the surface of its original sheds as well as the booster sheds installed.Based on the results of the simulation which the surface electric field intensity decreases monotonously from inside to outside,the maximum value of electrical field intensity on each sheds of the insulator was abstracted to be the indicator of its anti-flashover performance.Comparison was made among different ways of installation of booster sheds,regarding to different position and different ways of booster shed installation.The optimal way was generally found out,which was to guide the engineering practice directly.

关 键 词：陶瓷绝缘子 增爬伞裙 表面电场 仿真 

分 类 号：TM754[电气工程—电力系统及自动化]