低压脉冲法和冲闪法对电缆故障定位的分析

20082No.22008ElectricWire&Cable20084Apr.,2008(,721004):,,,:;;;;;:TM206;TM247.1:A:167226901(2008)0220041204AnalysisofCableFaultLocationbytheLVImpulseMethodandImpulseHVFlashoverMethodBAIXiao2bin(BaojiPowerSupplyAdministration,Baoji721004,China)Abstract:ThewaveformformedbycablefaultlocationbytheLVimpulsereflectionmethodandimpulseHVflash2overmethodisanalyzed.Waveformidentificationissummarizedconsideringtheworkexperiencesandsomepracticalcasesarepresented.Keywords:powercable;fault;LVimpulsereflectionmethod;impulseHVflashovermethod;location;waveform:2007208229:(1972-),,.:[721004].,,,,,[1],;,,1[2],(),,,,,;,,,11:(1)t1,t2,t3,t4,t1t3t3t4(2)t1,t2,t3,t4t1t3t3t4(3)()t1,t2,t3,t4,t5t1t3t3t5,:2,,,,,,,,©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],,,,,,,,,,()22(),,,3[1]a)b)c)2420082No.22008ElectricWire&Cable20084Apr.,2008©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.)33,,,,,,,,,,,,31:20069,782,45,1792m,ZQ2-3150mm2,10kV,,,,,,AB500M,C2:A,,,,,,2,1792m44C,,,,1036m,55,,6,t0t1,t1t2t3t41075m,29m,,61,,,;,,,,(),[3](),,2:,2006(ZLQ21-3240mm2-8.7/10kV),1975m,5M,,15kV,73420082No.22008ElectricWire&Cable20084Apr.,2008©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,,)t0t1t1t21973m,,,,,,,,,26kV,,675m,,8,,8(,)2:,C,,,,,,,,,,4,,,,,,,,:[1].[M].:,2005.[2],.[M].:,1994.[3],.[J].,2005,(4):16218.(37),,,,,,4,,GB/T12706.2-2002DGB/T11017.1-2002CGB/Z18890.1-2002C;,,,,,;,,,,:[1].[M].:,1999.4420082No.22008ElectricWire&Cable20084Apr.,2008©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.