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当前位置:首页 > 行业资料 > 国内外标准规范 > 基于变压器油纸间水分平衡关系的油纸绝缘水分含量计算方法
,,,(610072):,,。:;;;:TM406:B:1001-8425200908-0021-05CalculationMethodofOil-PaperInsulationMoistureContentBasedonOil-PaperMoistureEquilibrumofTransformerGANDe-gang,LIUFan,LIUPing,HUCan(SichuanElectricPowerTest&ResearchInstitute,Chengdu610072,China)Abstract:Theequilibriumrelationofoil-papermoisturecontentisanalyzed.Basedontheprincipleoftherelativesaturationofoilandpaper,asimplifiedcalculationmethodofoil-papermoisturecontentunderequilibriumstateispresented.Keywords:Transformer;Moisturecontent;Oil-paperinsulation;Equilibriumcurve1,。。,,。,,,。,,。,,。,。、,。,、。,。·,1μL/L~2μL/L。,。,,。,。22.1,,。,,。,46820098TRANSFORMERVol.46AugustNo.8200946:,;、,;,。,,,,,。,。、。;;,。2.2,,()。,,,1。:logS=A-BT(1)S———,μL/LT———A———,7.09~7.42B———,1567~1670,。,,,20℃~80℃800%。,:RS=WoilS(T)×100%(2)RS———Woil———,。,。,。,。,,,。,。,。,,。3。60,Fabre、PichonNorris,“Norris”,2。“Norris”,,,。3.1Oommen8007006005004003002001000020406080100/℃/μL·L-11Fig.1Curveofmoisturecontentinoil111098764532100102030405060708090/μL·L-1/%20℃30℃40℃50℃60℃80℃100℃2Norris()Fig.2Norriscurves(moistureequilibriumcurves)22、、81983Oommen,。,,3。,Oommen,。Woil=S(T)×RH(3),RH,:RH=pps×100%(4)ps———p———,PaOommen4,。()()。,。3.2Griffin1987FesslerHoutz、EwartOom-men,:C=2.173×10-7×PV0.6685×e(4725.6/T)(5)PV———,mmHg(1mmHg=133.322368Pa)C———T———Fessler:PV=5.8869×109×C1.4495×e(-6996.7/T)(6)Griffin1988Oommen。Fessler(6)(4),5。GriffinOommen。Oommen,GriffinFessler80℃100℃90℃1086422040608040℃50℃60℃70℃0℃10℃20℃30℃/%/μL·L-13OommenFig.3Moistureequilibriumcurves(Oommen)ofoilandpaper161412108642204060801000℃20℃40℃60℃80℃100℃/%/%4Fig.4Gurvesofmoisturecontentandrelativehumidityinfibre54321010203040506070809090℃100℃80℃70℃60℃50℃40℃30℃20℃0℃10℃/%/μL·L-1Fig.5Moistureequilibriumcurves(Griffin)ofoilandpaper5Griffin2346。[4],50%RH,Griffin。,,、。[4]Oommen。(“Norris”)。,。,。4,、,。Oommen,。Griffin,。Oommen,Griffin,。4.1,。。,,RS,,RH。(4),:p=RH×ps(7),:logps=10.286T-2148.4909T-35.85(8)(8)。ps(7)p。,。Griffin(5),。。4.2,,,。4.1C,,,,C。,(5),:PV=9.2683×109×C1.4995×e(-7069/T)(9)(9)(6),[4],(9)。,(9)。(9)(4),RH,,RS。(2),,:Woil=RS×S(T)(10)(1)(10),。4.3,,。60h,5℃,。110kV,72h68℃~72℃,,。70.5℃,35μL/L,4.11.66%,。,。(35)24、、GISVFTO8VFTO、。Ct,VFTO。VFTO,:(1)。(2)。(3)Ct。:[1].GIS[D].:,2001.[2]ShibuyaY,FujitaS,ShimomuraT.Effectsofveryfasttransientovervoltagesontransformer[J].IEEProc.-Gen-er.Transm.Distrib.1999,146(7):4.:2009-02-12:(1963-),,,、,;(1966-),,,、,。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:2009-03-03:(1980-),,,,。5,。,,,。:[1].[J].,1997,34(9):35-38.[2].[J].,1996,29(3):61-62.[3].[J].,2004,41(2):8-12.[4]DuY,ZahnM,LesieutmBC.Moistureequuiliriumintransformerpaper-oilsystems[J].IEEEElectr.Insul.Mag.,1999,15:11-20.[5],,,.[J].,1998,24(1):64-66.[6].[J].,1995,9(3):54-56.[7],.[J].,2004,32(1):54-55.[8].[J].,1999,36(11):46-47.[9]DUY,MamishevAV,LesieutreBC.Moisturesolu-bilityfordifferentlyconditionedtransformeroils[J].IEEETrans.Diele.&Elect.Insul.2001,8(5):805-811.(24),,VCM。,,。750kV2009521,,—750kV——。750kV——750kV,750kV,750kV。、3750kV4750kV,750kV2×442km、750kV2100MVA、750kV15、750kV82040Mvar、66kV10900Mvar。35
本文标题:基于变压器油纸间水分平衡关系的油纸绝缘水分含量计算方法
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