电力电缆故障测距综述

Summary of Power Cable Fault Location

文章综述了电力电缆线路故障产生的原因及常见故障类型,对现有电缆故障测距的原理和方法进行研究和比较,侧重比较了阻抗测距法和行波测距法的优缺点,并简述了小波变换的基本原理及在故障测距中的应用,分析了电力电缆故障在线测距方法及目前存在的问题,并对其应用前景作出了初步的评价。

In this paper,the causes of the faults of power cable lines and the types of common faults are summarized,and the principle and method of fault location are studied and compared,and the advantages and disadvantages of impedance ranging method and traveling wave ranging method are compared.Meantime the basic principle of wavelet transform and its application in fault location are introduced.In this paper,the method of on-line fault location of power cable and the existing problems are analyzed,and its application prospect is preliminarily evaluated.