无功补偿电容器故障判断的探讨

Inquire into Fault Diagnosis of Reactive Power Compensation Capacitors

随着国民经济的不断发展,电网也在不断增强,无功补偿增加是电力系统不可缺少的部分。近几年来由于元器件设计、保护整定、运行环境、维护经验的不足,经常出现无功补偿装置跳闸现象。并且同一设备出现屡次跳闸,检查试验后都没发现问题,过一段时间又重复同一跳闸现象,经常出现查找不到原因的情况。根据多年的故障跳闸统计来看,随着无功补偿电容器装置运行年限的增长,电容器部分的劣化、老化是造成无功补偿装置跳闸的主要原因。本文针对无功补偿电容器电容量测试方法,提出了自己的观点及判断方法,且在实际工作中取得了一定的效果。

With the development of the national economy, the power grid also improves. Compensating reactive power are important parts in power systems. Component design, relay protection setting, running environment and maintenance experience is insufficient in recent year, so var compensation device often trip. The same equipment often trip, but examination and test can not find the reason. According to the statistics of the trip over the years, we find with the age limit of reactive power compensation capacitors growth, capacitor aging and deterioration is the main reason of var compensation device often trip. This text proposes a point and judgment method for the test of wattless power compensation capacitor capacity, and it achieves certain successes in practical work.