Application Study of the On-line Monitoring System of Shunt Capacitors. [J]. Power capacitor & reactive power compensation, 2008, (3): 40-44.DOI:
电容器故障监测系统的应用研究
摘要
基于近年并联电容器装置频繁出现故障的现象和特点
研制出一套电容器故障监测系统
分别提取并联电容器装置的电流和电压实时信号
利用Labview虚拟仪器程序进行软件开发实现在线监测
对获取的电流电压信号进行谐波、合闸涌流、暂态过电压等方面进行分析和研究
并应用于现场测量
给出了一起电容器内部击穿故障的监测实例。
Abstract
Based on the phenomenon of the emerging faults in shunt capacitors
an on-line fault monitoring system is introduced
and the characteristics and functions are analyzed.The system is of the function of monitoring practical current and voltage signals on-line by Labview programming;the harmonic wave
overvoltage
and close inrush current can be analyzed in the system.What′s more
a typical fault of a capacitor due to breakdown is discussed in this paper.By this original data the further study on shunt capacitors can be supplied.
关键词
并联电容器在线监测过电压无功补偿
Keywords
shunt capacitoron-line monitoringovervoltagereactive power compensation