基于行波的电力电缆故障探测技术  

Cable Fault Detection Based on Traveling Wave

作　　者：洪滨[1] 王大文[2] 林春泉[2] 

机构地区：[1]淮南联合大学机电系,安徽淮南232038 [2]安徽工贸职业技术学院实验中心,安徽淮南232007

出　　处：《电线电缆》2011年第3期38-44,46,共8页Wire & Cable

摘　　要：首先对电力电缆故障行波机理进行分析,指出电缆故障行波是在分布参数电路上形成并传播的,给出了对应的波动方程特解、电缆故障行波的特征与性质;然后对当前行波技术在电缆故障探测方面的现状进行了深入分析,指出了基于行波技术探测电缆故障若干方法的特点与存在问题;最后,根据实测经验,针对隐蔽性较强的高阻故障,给出了一些基于二次脉冲法的电缆故障探测案例。In this paper,the authors first analyzed the traveling wave mechanism of power cable fault,indicating that the cable fault traveling wave was formed and traveled on the distributed parameter circuit.They provided a special solution to the wave equation as well as the characteristics and nature of the cable fault traveling wave.Then they made a deep analysis of the current application of the traveling wave technique on cable fault detection,indicating the characteristics and existing problems of some cable fault detection methods based on traveling wave.Finally,in terms ofdeeply concealed high resistance fault the authors,based on experiences in measurement,provided some cable fault detection cases using the twice impulse process.

关 键 词：故障行波 电力电缆故障测距和定点 低压脉冲法 脉冲电压取样法 脉冲电流取样法 二次脉冲法 多次脉冲法 

分 类 号：TM206[一般工业技术—材料科学与工程] TM247[电气工程—电工理论与新技术]