真空断路器投切电容器组的试验过程分析及降低重击穿的措施  

Process Analysis of Vacuum Circuit Breaker Cutting Capacitor Bank and Measures to Reduce Repeated Breakdown

作　　者：李小格 LI Xiaoge(Cooper(Ningbo)Electric Co.,Ltd.,Ningbo Zhejiang 3153366,China)

机构地区：[1]库柏(宁波)电气有限公司,浙江宁波315336

出　　处：《装备制造技术》2021年第8期223-225,231,共4页Equipment Manufacturing Technology

摘　　要：真空断路器投切电容器组的过程中很容易发生重击穿,从而给电容器组及电力系统中其他设备造成风险。结合电容器组开合试验分析了真空断路器投切电容器组的过程以及影响重击穿的几个因素。通过对比试验前后机械特性参数的变化以及试验后真空灭弧室触头表面烧损情况研究分析,提出了几点在真空断路器投切电容器组的过程中降低重击穿的措施。The vacuum circuit breaker is prone to repeated breakdown in the process of cutting the capacitor bank,which will cause risks to the capacitor bank and other equipment in the power system. In this paper,combined with the capacitor bank opening and closing test,the process of switching on and off the capacitor bank of the vacuum circuit breaker and several factors that affect the repeated breakdown are analyzed. By comparing the changes of the mechanical characteristic parameters before and after the test and the research and analysis of the contact surface burnout of the vacuum interrupter after the test,Several measures to reduce repeated breakdown in the process of switching on and off the capacitor bank of the vacuum circuit breaker are proposed.

关 键 词：真空断路器 切电容器组 重击穿 合闸涌流 

分 类 号：TM531[电气工程—电器]