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220kV,(,617067):220kV,,,,,,:;;Abstract:Withtheexampleofthetransformationofthe220kVtransformerscoolingsystem,thepaperhasanalyzedtheprob2lemsandriskoftheold-typewindchiller,introducedthetechnicalfeaturesofthenew-typewindchiller,describedsomerelatedmattersofthetransformationonthesceneandproposedthetransformationplan.Throughthecomparison,theeffectofthetechnicaltransformationisobviousandithassolvedtheproblemearnestly.Keyword:Transformer;CoolingSystem;Transformation:TM416:B:1003-6954(2008)06-0040-03220kV1,,,,90,,200791:YF-120,120kW,40m3/h,5600m3/h,1450r/min,9(7,1),1080kW,412,,;();;(,);12.11)YF-120(),,,,,,1998,,2),,,316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,2008:04,,,;,,,,,3),,,,,,4),40.4kW13kW,0.44+3=4.6kW,4.6/120100%=3.83%8,4.6824365=322368kWh5),,,6),80dB(A),nL=L1+10lgn(L1l,Ln,dB),,7),,2.2YFZL-250YFZL-250,,6BP150-5/3.8,5m,150m3/h,900r/min,3.8kW,,,,9ε(YF-1205ε),;,,,;,,,,BF-9Q8,720r/min,23000m3/h,1.1kW,65dB(A),,2.3:129kW;508.5kW;637.5kW:1.15()637.5kW250kW=2.933,YF-1209,YFZL-2505(3,1),1250kW,1,222.465dB(A),1000r/min,15%,3%,2m/s40,75,JB/T8315-1996(2007),,65,316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,2008Pa1410s,0.5MPa,8090,8h105,,,NSKE,6,2.5mm,,,380V,()3,71),,2),,,3),,44),5),,,,6),,,7),,,,(,)(,)8),,,,,,4:420kW,38.9%,70,15K:936;510,30:1.12+3.8=6kW,6/250100%=2.4%,3.83%:10dB(A),23dB(A),12dB(A):11892=2242,13752=1370,872,12,,,,,,,,[1].[M].:,2003.[2].[M].:,1990.[3]JB/T8315-1996,[S].[4]JB/T8315-2007,[S].[5].220kV[J].,2006.(5):40-41.(:2008-08-10)316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,200824