电力电缆故障原因及检测方法研究

电力电缆故障对电网运行可靠性造成了严重影响.分析了电缆典型故障类型、形成原因以及各种故障检测方法.结果表明,机械损伤、过负荷运行、电缆头缺陷等是造成电缆故障的主要原因.电缆故障检测时,应根据故障类型和性质选择合理的故障检测方法.为防止电缆故障的发生,提高电缆运行的可靠性,应在线监测电缆负荷电流,监测电缆温度,防止电缆化...

Causes of Power Cable Faults and Test Method Study

Power cable faults will have serious impacts on operation reliability of power grid.Analysis was made to typical power cable fault types,forming causes and test methods for various faults.The results show that the main causes leading to cable faults are mechanical damages,overload operation,cable end defect etc.In cable fault test,the reasonable fault test method should be selected according to fault types and nature.In order to prevent cable faults from taking place and to raise reliability of cable operat...