10kV电力电缆故障的类型和测寻方法

Analysis of Malfunction Types and Measurement Methods of 10kV Power Cable

论述了电力电缆故障的成因与故障类型及探讨如何判断;论述电桥法、电容法、低压脉冲法、直流闪络法、冲击闪络法等五种典型电缆故障测量方法的原理及其适用范围,以便探讨更有效的电缆事故防止措施或作为电缆运行管理部门在判断和处理电缆故障时的参考。

Nowadays the electric power cable has been used widely in the power grid. Therefore, the malfunction has also increased accordingly. According to the basic framework of electric power cable, this paper not only analyses the causes and malfunction types of electric power cable, but also discusses how to identify some malfunction types. There are five typical measurement methods, such as circuit-bridge one capacitor one, low voltage-pulse one, dc-flashover one and impact flashover one, to detect the electric power cable malfunction. In order to effectively prevent the cable faults and give a reference for the cable manager identification or dealing with the faults, it also discusses the suitable range of these ways.