10 kV配电电缆线路故障分析及探测对策探讨

Discussion on Fault Analysis and Detection Countermeasures of 10 kV Distribution Cable Lines

近年来,城镇的建设使配电网中电缆的数量不断增多,电缆发生故障的概率也大大增加,只有快速查找到电缆故障点,才能保证城镇可靠供电。由于电缆故障存在隐蔽性强的特点,加上检测设备和检测技术存在一定的局限性,电缆故障点的查找变得非常困难,尤其是电缆的单相接地故障。本文以一起电缆单相接地故障为实例,分析故障原因,为查找电缆接地故障提供了一种借鉴。

In recent years,the construction of towns has increased the number of cables in the distribution network.Due to various reasons,the probability of cable failure has also increased greatly.Only when the cable fault point is quickly found can the town be reliably powered.Due to the concealed nature of cable faults and the limitations of detection equipment and detection technology,it is very difficult to find cable fault points,especially single-phase ground faults of cables.This paper provides a reference for finding the ground fault of the cable by analyzing and detecting the cause of a single-phase grounding fault of the cable.