交联聚乙烯电缆局部放电检测技术及特征提取技术进展

Progress of Partial Discharge Detection Technique and Characteristic Extraction Technique of XPLE

交联聚乙烯电力电缆长期运行中绝缘劣化可能导致局部放电,对局部放电进行检测可以保证电网长期安全可靠运行。首先介绍了多种不同的电缆局部放电检测方法,分析不同方法的优缺点,在此基础上,介绍了用于局部放电模式识别的特征量提取方法。

The insulation degradation of the cross-linked poloyethylene cable may result in partical discharge in long-term operation.To test the partial discharge,we can ensure electric networks to operate safetly and reliably.Firstly,many different kinds of cable partial discharge test methods are presented.Analyze the meritsand demerits of the different methods.On this basis,present characteristic amount extraction method that is used in the partial discharge model reongnition.