变压器局部放电超高频检测方法的应用-欧阳旭东

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:10072290X(2004)04200342031,2,1,1(1.,510600;2.,710049):,,,,,,:;;:TM855:BApplicationofultra2high2frequencypartialdischargedetectionintransformersOUYANGXu2dong1,YUANPeng2,LINChun2yao1,ZHENGXiao2guang1(11GuangdongPowerTest&ResearchInstitute,Guangzhou510600,China;21XipanJiaotongUniv.,Xipan,Shaanxi710049,China)Abstract:Thispaperdescribestheprinciplesoftheultra2high2frequency(UHF)techniqueofpartialdischarge(PD)detec2tionintransformers,andanalyzesitssuperiorityoninterference2freeperformance.Themethodisappliedinasubstationandthemeasureddataanalyzed.TheresultsshowthattheUHFtechniqueappliestoon2linePDdetectionintransformerswithgoodanti2interferencecapabilityandthedetectionresultscanreflecttherealconditionoftransformerinsulation.Keywords:transformer;partialdischarge;UHF[1,2],,,,GIS,1111,,,,12ns[3],,,(UHF)(3003000MHz),,112,,1,,,,,,,©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4],,,,2211,110kV5m1mm,,015m,,50nC,,,,500kV500kV,250MVA(),22,,500kV,,2,-90dB,(345),212200311500kVV,U,V343200311U4200311V34,VU20dB,,,,6,V,,5520045V200Hz,4534:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:[1],.[M].:,1994.[2].[M].,.:,1984.[3].[D].:,2003.[4],.PD[J].,2002,28(10):2627.:(1972),,,,,6317