电网技术2012，Vol.36Issue(3)：51-55,5.
模块化三断口真空断路器分布电容计算和均压电容分析
Calculation of Distributed Capacitances of Modularized Triple-Break Vacuum Circuit Breaker and Analysis on Its Grading Capacitors
摘要
Abstract
To research voltage distribution characteristic of triple-break vacuum circuit breaker, a three-dimensional finite element analysis model of modularized triple-break vacuum circuit breaker composed of three fiber-controlled vacuum interrupter modules is built. The distributed capacitance values of modularized triple-break vacuum circuit breaker under vertical and U-shaped arrangements are calculated; the power-fi＇equency voltage division test of modularized triple-break vacuum circuit breaker is performed; and voltage distributions under the two arrangements are measured. An equivalent capacitance model is introduced in to verify the accuracy of calculation results. Results of comparing measured test data with calculated values show that the relative error of voltage distribution is lower than 4%; under vertical and U-shaped arrangements the proportion of voltage distribution of the break at high voltage side is higher than 60%, so it is necessary to equip with suitable voltage sharing measures. Based on the value of distributed capacitance, static voltage distribution characteristics of modularized triple-break vacuum circuit breaker under different values of grading capacitors are analyzed.关键词
模块化三断口真空断路器/有限元法/分布电容参数/工频分压试验：均压电容Key words
modularized triple-break vacuum circuitbreaker/finite element method （FEM）/distributed capacitanceparameter/power frequency voltage division test/gradingcapacitor分类
信息技术与安全科学引用本文复制引用
吴高波,阮江军,徐菁,黄道春,舒胜文,张坤..模块化三断口真空断路器分布电容计算和均压电容分析[J].电网技术,2012,36(3):51-55,5.基金项目
国家科技支撑计划项目 （）
国家电网公司重大科技项目 （）
中央高校基本科研业务费专项资金（20102070101000070）. （）
