复合绝缘子憎水性表面水滴的电场特性分析  

Electric Field Analysis of Water Droplet on Hydrophobic Surface of Polymer Insulator

作　　者：王仲奕[1] 王琪[1] 陈青[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《高压电器》2009年第6期5-11,共7页High Voltage Apparatus

摘　　要：基于复合绝缘子的污闪理论,通过两种简化的硅橡胶平板模型,应用电场有限元计算软件ElecNet分别模拟了复合绝缘子护套表面和伞裙表面水滴的电场特性,着重研究比较了水滴的体积、接触角、形状等参数对水滴表面电场的影响,分析了两种模型中影响水滴表面电场强度的主要因素,并计算了复合绝缘子表面附着水滴时的电场,得出复合绝缘子伞裙上下表面以及护套表面附着的分离水滴使电场大大增强的结论。The electric field characteristics of water droplets on surfaces of sheath and shed of polymer insulators are studied by means of two simplified flat silicone rubber sheet models. This study adopts both the pollution flashover mechanism of polymer insulator and the electric field computation software ElecNet. Effects of volume, contact angle, shape, and other parameters of water droplet on electric field are compared, and the main factors are obtained. The electric field distributions on polymer insulators with discrete water are also analyzed.

关 键 词：复合绝缘子 憎水性 电场强度 有限元 

分 类 号：TM216[一般工业技术—材料科学与工程]