110kV电力电缆故障定位及分析

随着城市建设的高速发展,电力电缆在各行各业都得到广泛的应用,但其故障率也逐年增加。文中以110 kV XLPE(交联聚乙烯)海底电缆故障及其修复过程为例,从电缆故障定位的基本原理出发,介绍利用回波法、二次脉冲法等方法检测电缆故障的全过程,分析故障定位过程中出现的问题,并通过现场试验进行了验证,证明了推论的准确性。

Location and analysis of 110 kV electric cable fault

With the rapid development of urban construction,power cable have been widely used in all walks of life,however,the failure rate of power cable has been rising.Based on the cable fault location fundamentals,the fault and repair of 110 kV submarine electric cables is taken as an example in the article to introduce the whole process of fault detection by using echo method,second pulse method et al.The problems during the fault detection process are analyzed and verified through field tests,and the test results proved the accuracy of the deduction.