基于高频暂态的35kV线路多故障点识别研究罗东萍,薛斐,熊丽,黎林君(海南电力产业发展有限公司,海南海口570100)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35kV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35kV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35kV线路多故障点定位具有很好的适应性与稳定性。关键词:35kV线路;大电流系统;小电流系统;行波法测距;多故障点中图分类号:TM732DOI:10.19768/j.cnki.dgjs.2022.24.061ResearchonMultipleFaultPointsof35kVLineBasedonHigh-FrequencyTransientsLUODongping,XUEFei,XIONGLi,LILinjun(HainanElectricPowerIndustryDevelopmentCo.,Ltd.,Haikou570100,China)Abstract:Thevoltagequantityandcurrentamountofmulti-pointgroundfaultinthehigh-currentgroundingsystemandthelow-currentgroundingsystemareanalyzed,andthetravelingwavemethodisusedtodeterminethemulti-pointfaultandaccuratelylocatethefaultofvarious35kVlines.Finally,thetravelingwavemethodfaultrangingcanwellidentifythemultiplefaultpointsina35kVlow-currentsystem.Multipletestsandfieldfaultlocationshowthatthetravelingwavemethodhasgoodadaptabilityandstabilityforthelocationofmultiplefaultpointsin35kVlines.Keywords:35kVline;highcurrentsystem;...