三相泄漏电流和的变化反映容性设备的绝缘状态

Diagnosis of Capacitive Equipment Using the Sum of Leakage Current

介绍了根据三相容性设备泄漏电流和的变化量来判别设备的绝缘状态的基本原理和方法 ,分析了影响测量结果的主要因素如三相电压波动及不平衡、系统频率及测量电路漂移等 ,给出了系统实现的方框图。

The article describes the application of the sum current method to the on-line monitoring of capacitive equipment, analyses the influence factors to the measurement result, and gives the flowchart for the on-line monitoring system.