主变总烃超标缺陷分析处理

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,,(650200):,,。:;;:TM406:B:1001-8425(2009)02-0067-03TreatmentandAnalysisofOverprootTotalHydrocarbonContentofMainTransformerWEIRui-feng,YANGShao-kun,CHENZhen-jiang(KunmingPowerSupplyBureau,Kunming650200,China)Abstract:Thereasonsofoverproottotalhydrocarboncontnetinoilchromatographicanal-ysisofmaintransformerareanalyzedbasedonchromatographicanalysisandDCresis-tancetest.Thetreatingandpreventivemeasuresarepresented.Keywords:Transformer;Tap-changer;Treatment1200689,220kV2,,,1。199912,OSFPS7-180000蛐220,(220±2×2.5%)蛐121蛐(38.5±5%)kV,YNa0d11;、,WDG-1000蛐110-6×5,;。20068142,,,2。,。220047,,,。2004、2005,,。20068,,,。22.11,,。“0、2、2”,700℃1H2COCO2CH4C2H6C2H4C2H22006210.86392.571292.735.9117.5892.530146.022006835.18331.511459.41105.5348.72245.670399.92Table1Chromatographicdata2蛐mΩΔr蛐%abbcac50.2550.3850.670.8346.4146.3948.374.242.6942.5043.742.8Table2DCresistancesinLVside46220092TRANSFORMERVol.46FebruaryNo.2200946。CO、CO2,CO2蛐CO3,,。400℃322×log(C2H4蛐C2H6)+525=751℃。①,。②35kV。③。2.2,,,。1。12、3、4、5,3。1,,,。,。1:Rab=Rb蛐蛐(Ra+Rc)=(RaRb+RbRc)蛐(Ra+Rb+Rc)(1)Rac=Ra蛐蛐(Rb+Rc)=(RaRb+RaRc)蛐(Ra+Rb+Rc)(2)Rbc=Rc蛐蛐(Ra+Rb)=(RaRc+RbRc)蛐(Ra+Rb+Rc)(3)Rac>Rab≈Rbc(4)(1)~(4):Ra>Rc≈Rb,A。2.32(A)。,。2。(WDG),,,,,。,,。2,2、3、4、5、6、7,2、3、4、52、3、4、5;6、7,3、4。,,“4”,“4”,。“4”,,。3,,。,。,abc4325xyz432543251Fig.1ConnectiondiagramofLVside32-33-44-5Table3Gearandtapconnectionax4235234567(,2~5)2Fig.2Tap-changerdiagraminLVside68、、2(WDG-1600蛐110-6×5),,,、。,1000A1600A。2,“4”,3。,,、。,A32,0.05mm()。1600A,10,160A。5,800A,779A,A,。4。4,;,。A2,,;B、C,,。,A,,,4。,,,、,。,,,A,。4,,、、,。1,、。,;,,,,。5(1),,。,,。(2),,。,,,、。(3),,。“4”“3”“5”3Fig.3Gearoftap-changer4AFig.4Supporteroftap-chagngerinphaseA:2008-04-10:(1976-),,,,、。69

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