摘要
随着大量电力电缆的投运,相应的电缆故障率也随着使用年限上升,列举了电缆故障探测的传统方法及其缺点,介绍了电缆故障探测的新方法,对中性点在不同接地方式下产生单相接地故障进行了仿真分析,利用Bd小波对故障信号进行处理,并通过算例证明了该方法具有很高的测距精度。
Following great quantity of power cables being put into operation, relevant cable faults rate rises with use years rising. This paper listed traditional methods of cable detection and their disadvantages. Introduction was made to the new method for cable faults detection and simulation was carried out for single phase grounding fault generated under neutral point in different grounding methods. Bd wavelet was used to process fault signals and calculation examples proved that this method was with very high distance detection accuracy.
出处
《电工电气》
2011年第4期14-18,共5页
Electrotechnics Electric
关键词
电缆故障
测距
小波变换
cable fault
distance detection
wavelet transform
