提升配电网电缆附件隐患检测效率的综合检测方法

Comprehensive Detection Method for Improving Defect Detection Efficiency of Cable Accessories in Distribution Network

摘要:

随着城市化进程的的稳步推进，大量市区架空线路“提档升级”逐步采用电缆线路。特别是近十年以来，大量 的电缆被安装到了配电网系统中。如何有效检测出在运配电电缆的隐患也成为了迫在眉睫的问题。提出了一种综 合利用现有在线测温、暂态对地电压局部放电检测、阻尼振荡波检测等配网电缆检测方法，能有效地检测、诊断及定 位电缆附件绝缘隐患的方法。

Abstract:

With the acceleration of urbanization，a large number of urban overhead lines have been gradually replaced by cables as a result of the " Ｒoad Improvement" project． Especially in the last decade，a large number of cables have been installed in power distribution network． The urgency of detecting insulation defects in running cables is also increasing． A comprehensive utilization of the existing online temperature measurement，transient earth voltages ( TEV) and damped oscillatory wave test system ( OWTS) is proposed，which can effectively detect，diagnose and locate the insulation defects of cable accessories ．