安装增爬裙对支柱绝缘子电气性能的影响研究  

Effect of Booster Shed Arrangement on the Electrical Property of Post Insulator

作　　者：李红 

机构地区：[1]乌海职业技术学院,内蒙古乌海016000

出　　处：《电瓷避雷器》2015年第6期22-26,30,共6页Insulators and Surge Arresters

摘　　要：目前对支柱绝缘子增爬裙安装位置以及大小尺寸尚未有统一认识,现有的研究中报道较少,使得目前变电站绝缘子增爬裙的运用缺乏系统的理论支撑。以ZSW-110型瓷支柱绝缘子为对象,运用仿真软件建立了其真实模型,分析了增爬裙安装位置和伞径对绝缘子表面电场的影响,研究结果表明:安装增爬裙会加重绝缘子表面电场的畸变,且增爬裙安装在靠近电场较高的高压端时,绝缘子的电场分布畸变最为严重,而增爬裙安置在中间或者下端对绝缘子电场的影响很小;增爬裙直径不同会对支柱绝缘子的电位分布造成一定影响,且增大增爬裙的尺寸能够降低绝缘子伞裙的最大场强。研究结果对外绝缘配置以及防污闪措施的选择有一定的指导意义。Currently there is no consistent view on the position and size of booster shed on post insulator, which is less reported by the existing researches. The theoretical support of applying booster sheds is still lack. In this paper the ZSW-110 post insulator was taken as the sample, and its real-scale model was established in the simulation package. Then the electric field distribution of post insulator with booster sheds arranged on different positions and with different size was analyzed. Research results indicate that, the application of booster shed will aggravate the electric field distortion of post insulator. When the booster sheds were installed on the upper part of the sample, the distortion of electric field was most severe. When the booster sheds were installed on the middle or under part of the sample, the electric field was less affected. The diameter of booster shed will affect the electric field distribution of insulator, and the larger the diameter, the lower the maximum electric field stress. This research is of some value for the external insulation design and anti-pollution measures.

关 键 词：支柱绝缘子 增爬裙 电场分布 电位分布 有限元 

分 类 号：TM216[一般工业技术—材料科学与工程]