基于高频暂态的35 kV线路多故障点识别研究  

Research on Multiple Fault Points of 35 kV Line Based on High-Frequency Transients

作　　者：罗东萍 薛斐 熊丽 黎林君 LUO Dongping;XUE Fei;XIONG Li;LI Linjun(Hainan Electric Power Industry Development Co.,Ltd.,Haikou 570100,China)

机构地区：[1]海南电力产业发展有限公司,海南海口570100

出　　处：《电工技术》2022年第24期201-204,共4页Electric Engineering

摘　　要：对大电流接地系统和小电流接地系统发生多点接地故障时的电压量和电流量进行分析,利用行波法对各类35 kV线路进行多点故障判定及故障精确定位,最终可知行波法故障测距能够很好地识别出35 kV小电流系统中存在的多故障点情况。多次试验和现场故障定位情况表明行波法对于35 kV线路多故障点定位具有很好的适应性与稳定性。The voltage quantity and current amount of multi-point ground fault in the high-current grounding system and the low-current grounding system are analyzed,and the traveling wave method is used to determine the multi-point fault and accurately locate the fault of various 35 kV lines.Finally,the traveling wave method fault ranging can well identify the multiple fault points in a 35 kV low-current system.Multiple tests and field fault location show that the traveling wave method has good adaptability and stability for the location of multiple fault points in 35 kV lines.

关 键 词：35 kV线路 大电流系统 小电流系统 行波法测距 多故障点 

分 类 号：TM732[电气工程—电力系统及自动化]