变频电机绝缘高频局部放电检测技术

摘要

The high frequency and high voltage pulse cause partial discharge to insulation was introduced, and the characteristic of signal was showed, a technique for detecting discharge signal was suggested, the specific method explained, was with this method, could analyze the insulation structure of the Inverter motor under the variable frequency power supply, benefit the promotion and application of inverter technology.%介绍了高压高频脉冲对绝缘产生局部放电现象,阐述了局部放电信号的特点,并着重提出了一种测试精度较高的检测放电信号的技术及具体实现方法,利用此方法,可以很好地完成变频供电下的变频电机绝缘结构寿命分析,有益于变频调速节能技术的推广和应用.