电缆故障定位系统的设计与实现贺瑞斌,赵少侠(国网宁夏电力公司固原供电公司,宁夏固原756000)摘要:为了精确探测地埋电缆接地故障点具体位置,使用双频混合法,利用电磁法原理,设计了一种电缆故障定位系统。该系统由路径检测和A字架定位两大模块组成,通过两大模块采集磁场信号,然后对模拟及数字信号进行处理,以提取有用信号。从解决实际需求出发,研究了电缆故障定位系统工作原理,设计了系统的构架和模块框图,并实现路径检测与故障定位的功能。关键词:接地故障;差分线圈;电缆路径检测;A字架定位中图分类号:TM769DOI:10.19768/j.cnki.dgjs.2022.024.067DesignandImplementationofCableFaultLocationSystemHERuibin,ZHAOShaoxia(GuyuanPowerSupplyCompany,StateGridNingxiaElectricPowerCompany,Guyuan756000,China)Abstract:Inordertoaccuratelydetectthelocationofthegroundfaultpointofburiedcable,acablefaultlocationsystemisdesignedbyusingthedual-frequencyhybridmethodandtheprincipleofelectromagneticmethod.Thesystemconsistsoftwomodules:pathdetectionandA-framepositioning.Magneticfieldsignalsareacquiredthroughtwomodules,andana-loganddigitalsignalsarethenprocessedtoextractsignalsofinterest.Startingfromsolvingtheactualrequirements,theworkingprincipleofthecablefaultlocationsystemisstudied,thearchitectureandblockdiagramofthesystemarede-signed,andthefunctionsofpathdetectionan...