电力系统补偿电容器的安全运行及故障处理

Safe Operation and Fault Treatment of Shunt Capacitor in the Power System

电网中的补偿电容器对改善电压质量,提高功率因数具有重要作用。自动投切和频繁操作会给电力设备带来冲击和故障。本文以220kV变电站中35kV补偿电容器的日常运行状况为切入点,对在新设备投入运行启动时由于真空断路器分闸多次多相重燃造成电容器损坏的案例进行了分析,并提出具体的措施加以解决。

Shunt capacitors play an important role in the power grid, such as improving the voltage quality and the power factor. But the automatic switching and frequent operations also lead to the impact of power equipment and failure. In this paper, the author had focused on analyzing a 35 kV shunt capacitor equipment failure in a 220 kV substation. Sometimes, when we turn a new equipment into operating, there will be a damage happens to the capacitor because of the vacuum circuit breaker multiphase rekindle. Based on this situation, the research had been carried out and a measure had been found to solve the problem in the paper.