三相XLPE电力电缆多传感器联合监测方法的研究  

Study on Multi-Sensor Joint Monitoring Method of Three-Phase Cross Linked Polyethylene Power Cable

作　　者：张琦[1] 夏向阳[1] 程莎莎[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410114

出　　处：《电工电气》2013年第9期48-51,共4页Electrotechnics Electric

摘　　要：针对三相XLPE电缆接地磁感应电流极小的特点,提出了一种基于接地线电流法的多传感器联合监测方法,阐述了该方法的实现原理,给出了电缆在线监测装置的具体实现途径。仿真结果表明该方法可有效反映电缆的局部绝缘故障,且通过分析各监测点接地电容电流还可确定局部故障所处位置,对于三相XLPE电力电缆的绝缘监测具有一定的参考价值。Aiming at the character of three-phase cross linked polyethylene （XLPE） power cable that the grounding magnet induction current is very little, this paper raised a multi-sensor joint monitoring method based on grounding line current and described the realization principle of the method, giving the actual realization way of cable online monitoring device. Simulation analysis shows that this method can effectively reflect partial insulation fault of the cable. The local fault location was determined by analysis of every monitoring point grounding capacitance current, which provides certain reference value for the insulation monitoring of three-phase XLPE power cable.

关 键 词：三相XLPE电力电缆 多传感器联合监测 接地电容电流 在线监测装置 

分 类 号：TM755[电气工程—电力系统及自动化]