摘要
为了找到一种简洁、经济、实用的电缆故障定位测试方法,本文介绍了目前常用的几种电缆故障定位方法并总结了各种方法的优缺点,在对以上方法的测试原理进行理论分析的基础上,结合驻波形成原理,经过数学推导和反复试验验证,提出了一种采用扫频仪进行电缆故障定位的方法,并对该方法的应用条件和试验步骤进行了详细说明。试验验证:该方法对一定距离的电缆故障能够进行定位,能准确地测出故障点位置,测量相对误差小于0.5%,是一种行之有效的方法。
In order to present a kind of concise,economic and practical method of cable facult location,several methods of cable fault location,which are often used presendy,are introduced,and their advantages and disadvantages are analyzed.Based on theory analysis of testing principle,one method of cable fault location is brought forward using sweeper,and application condition and experimental steps are detailedly specified.It shows that cable fault in certain distance can be precisely located by above-mentioned method,which is effective,location of facult can be determined,and relative error is less than 0.5%.
出处
《电测与仪表》
北大核心
2009年第S1期1-3,共3页
Electrical Measurement & Instrumentation
关键词
电缆故障定位
时域反射
扫频仪
驻波
cable fault location
time domain reflection
sweeper
standing wave
