大型变压器短路试验方法及四台变压器短路试验情况简介

(,110025):,:MethodsofShort-CircuitTestforLargePowerTransformerandBriefIntroductionofShort-CircuitTestforFourTransformersChenKuiShenyangTransformerResearchInstitute,Shenyang110025Abstract:Hushitaihighpowerteststationisgenerallyintroducedinthispaper,andthemethodsofshort-circuittestarepresentedwiththeproducts.Keywords:Transformer,Short-circuittest,Standard11987,1993220kV,,18km40000m2,4000m2,30m18m20m200t1,32t1,100t460111(2,)YLD-120000/500,220/4(40+16)kV,15MVA,1200MVA,40,4448kV1..:,1979.2..:,1987.3,,..:,1982.(:1997-11-20)35119981TRANSFORMERVol.35JanuaryNo.11998©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,60kA112220kV,40kA,015ms(9)11324,011ms114,SE25608115HESG-1YY2816,011116,110kV,220kV120MVA1994,256()159,82,3,7,26102035kV110kV50MVA,110kV;16MVA,35kV2,,,(IEC)(GB),;211GB10941585,IEC7615761996(IEC14/268CD)GB10941585IEC761576,GB10941585,IEC761576,1(:IEC14/268CDIEC761576,19979911TC14,19983)21221211()I=U3(Zt+Zs)(1)I=KnIN(2)Kn=100Us+UzI,kAU,kVZs,/Zs=U2sSUs,kVS,MVAZt,/Zt=UzU2100SNUz,%SN,MVAUs,%Us=SNS100IN,kA21212()i=I2K(3)2K311:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1GB1094.585IEC761576IEC14/268CD13150kVA315040000kVA40000kVAGB2500kVA2500100000kVA100000kVA2040GB10403015s10%GBGB0125s10%42%()4%(3%)GBGB1%1%2%()5100%,75%3100%IEC76157610%5%GBGB6,3;,9;3,100%,75%,9,9,3,3100%IEC761576GBGB7GBGB8()85%75%100%9GBGB102KX/R14,2K=2155X/R14GBX/R142K=2169(100MVA)22KX/R111523456810142K1151164117611952109211921272138214621552KX/R,X(),R()X/R14,X/R2K(2)2K;X/R14,2K=21552K,2K=2{1+sinexp[-RX(2+)]}(4)=tan-1X=tan-1LR213,,(1115),,,;,,3/24135©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,015ms(9),Yd11(1,2)12(a)115(b)Un()FKHKXLTPTCTC1C2214,,,,70%(),,;,,,,,,,,(1015min),,215:(1);(2),();(3),2%;3%,4%3%,715%,,,,34110kV1996419977,4110kV,4:19964:SFZ8-31500/110511:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3/AOBOCO/AOBOCO/%SFZ-831500/11015013550130104012740128193213332143013SSP8-50000/1101331253313333012130120527181271820106SF3-QY-20000/1101511904511986346180546191254216104216600123SFSZ8-31500/11017613076134465108641987551165512001151511015111844216842176736116361270133;19968:SSP8-50000/110;19971:SF3-QY-20000/110;19977:SFSZ8-31500/110,4,2b9,3;18,99100%75%012s10%A,B,C()0106%0133%,,,343B3(:19971006)6135©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.