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1,1,1,1,2(1.4101142.410100):,、,,。:;;:TM406:B:1001-8425(2010)06-0032-05ResearchonCorrelationofInsulationVolumeResistivitywithAcidValueandPolymerizationDegreeofTransformerOilandPaperHANHui-hui1,YANGDao-wu1,WANGSu1,LIHai-ru1,LIZhe-wen2(1.ChangshaUniversityofScienceandTechnology,Changsha410114,China;2.HunanUHVPowerTransmissionandTransformationCompany,Changsha410100,China)Abstract:Thethermalageingcharacteristicsoftransfromeroilandinsulatingpaperareresearched.Theirvolumeresistivity,acidvalueandpolymerizationdegreeinageingpro-cessaretested.Thedataareanalyzed.Theformulasbetweenparametersarederived.Keywords:Transformeroil;Insulatingpaper;Research1、,,。。ρV。,2070,。GB/T7595-2000《》3.1:。,,。,。,。。ZouX,Mohamed8,。,,。2545,,。。22.1:25,45。:。BTB、、。TRANSFORMER47620106Vol.47JuneNo.62010、、62.22.2.15g,90℃48h,40℃,12∶1,24h。2.2.2SahaTK90℃~145℃,IEEE,,120℃~130℃,120℃。2.2.3:,(120±0.5)℃。25458,(120±0.5)℃。72h~144h、。2.2.4GB7599-1987《、(BTB)》。GB/T5654-1985《、》。ASTM4245《》。。33.1ρV,,。,。12,1、2,,(1):ρv=Ae-t/t0+y0(1)ρv———,Ω·mt———,hA,t0,y0———,,,1。120℃,,;200h300h,,300h,60050040030020010000200400600800120℃25120℃25/h/1010Ω·m1120℃25Fig.1CurvesofvolumeresistivityanddeteriorationtimeofNo.25oilunder120℃1Table1FittingconstantsofinsulationvolumeresistivityanddeteriorationtimeAt0y0120℃25613.0127.0-2.6120℃451386.7149.011.1120℃25801.967.97.9120℃451039.749.810.21500120090060030000200400600800120℃45120℃45/h/1010Ω·m2120℃45Fig.2CurvesofvolumeresistivityanddeteriorationtimeofNo.45oilunder120℃3347。122545,4525,。45,,。3.2120℃25、453。3,。25,,45,25,4525。,,,4525。2545,,,,。1、23,120℃,25,100h,,;100h200h,,,200h,,,。。45,45,,(2):ρv=ae-c/m+b(2)ρv———,Ω·mc———,mgKOH/ga,b,m———,、,2。45,,,,ρv=ae-c/m+b。,120℃45120℃25120℃25120℃451.81.51.20.90.60.300100200300400500600700/mgKOH·g-1/h3120℃Fig.3Curvesofacidvalueanddeteriorationtimeunder120℃120℃45800600400200000.20.40.60.81.0/mgKOH·g-1/1010Ω·m4120℃45Fig.4CurveofvolumeresistivityandacidvalueofNo.45oilandpaperunder120℃400200600000.40.81.21.62.0/mgKOH·g-1/1010Ω·m120℃255120℃25Fig.5CurveofvolumeresistivityandacidvalueofNo.25oilandpaperunder120℃34、、60.4mgKOH/g,。,,,,,,,。,,,,。,(0.4mgKOH/g),,,,。,,,,。3.3DP,(C6H10O5)n,n,,。6120℃2545,。12,,。6,,,,;2545,45,。,,、,。7,,:DP=a-bcρv(3)DP———ρv———,Ω·ma,b,c———3。7,,:DP=a-bcρv。,,,,;252Table2Fittingconstantsofinsulationvolumeresistivityandacidvalueabm120℃25837220.18120℃451291500.10120010008006004000200400600800120℃25120℃45DP/h6120℃Fig.6Curvesofpolymerizationdegreeanddeteriorationtimeofoilandpaperunder120℃120010008006004000100200300400500120℃25120℃45/1010ΩmDP7120℃Fig.7Curvesofpolymerizationdegreeandvolumeresistivityofoilandpaperunder120℃3Table3FittingconstantsofpolymerizationdegreeandvolumeresistivityabcR2120℃2511998190.9850.960120℃45176213800.9980.9963547DP45。,,。4(1),ρv=Ae-t/t0+y0,,。(2),ρv=ae-c/m+b,0.4mgKOH/g,,,。(3),DP=a-bcρv,,,,。:[1].2001[J].,2002,35,(5):33-36.[2]PengD,YangD,Theinfluenceoftransformeroilagingtodielectricdissipationfactorandttsinsulatinglifetime[C].IEEE,Asia-PacificPowerandEnergyEngineeringConference.2009.[3].[J].,2006,25(4):50-52.[4].[J].,2005,18(6):28-31.[5],,,.[J].,2004,24(6):147-151.[6],,.[J].,2008,28(10):142-147.[7]FaberJ,PichonA.Deterioratingprocessesandproductsofpaperinoilapplicationtotransformers[C].CIGREConferenceonLargeHighVoltageElectricSystems,Paris,1960.[8]ZouX,UesakaT,GurnagulN.PredictionofpaperpermanencebyacceleratedagingI.Kineticanalysisoftheagingprocess[J].Cellulose,1996,3(1):243-267.[9]WahabMAA,HamadaM,ZeitounAG,etal.Novelmodelingforthepredictionofagedtransformeroilcharacteristics[J].Elect.PowerSys.Res.,1999,51(1):61-70.[10],.[J].,2005,31(1):17-19.[11]、.[J].,1998,35(12):14-16.[12],,,.[J].,2008,45(7):47-50.[13]SahaTK,DarvenizaM,HillDJT,etal.Electricalandchemicaldiagnosticsoftransformerinsulation-PartB:Acceleratedagedinsulationsamples[J].IEEETrans.PowerDeliv.,1997,12(4):1555-1561.[14]ASTMD4243-1999,Standardtestmethodformeasure-mentofaverageviscometricdegreeofpolymerizationofnewandagedelectricalpapersandboards1[S].[15].[M].:,1998.[16],,,.ZR881[J].,2003,12(3):57-59.[17],,.[J].,1997,34(9)::26-28.:2009-09-25:(1984-),,,,;(1954-),,,,。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!20092009,2008,,,100/。,。,:,,,;,。。2008,1.2,20091.3,86%,67%1.5。,3,5。,。36
本文标题:变压器油纸绝缘体积电阻率与酸值及聚合度的相关性研究
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