1、NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 600768 Premiredition Firstedition 199710 Transformateursdepuissance Guidedapplication Powertransformers Applicationguide Numroderfrence Referencenumber CEI/IEC600768:1997Numrosdespublications Depuisle1erjanvier1997,lespublicationsdelaCEI sontnumrot
2、espartirde60000. Publicationsconsolides Lesversionsconsolidesdecertainespublicationsde laCEIincorporantlesamendementssontdisponibles. Parexemple,lesnumrosddition1.0,1.1et1.2 indiquentrespectivementlapublicationdebase,la publicationdebaseincorporantlamendement1,etla publicationdebaseincorporantlesame
3、ndements1 et2. Validitdelaprsentepublication LecontenutechniquedespublicationsdelaCEIest constammentrevuparlaCEIafinquilreflteltat actueldelatechnique. Desrenseignementsrelatifsladatede reconfirmationdelapublicationsontdisponiblesdans leCataloguedelaCEI. Lesrenseignementsrelatifscesrvisions,ltablis
4、sementdesditionsrvisesetauxamendements peuventtreobtenusauprsdesComitsnationauxde laCEIetdanslesdocumentscidessous: BulletindelaCEI AnnuairedelaCEI Accsenligne* CataloguedespublicationsdelaCEI Publiannuellementetmisjourrgulirement (Accsenligne)* Terminologie,symbolesgraphiques etlittraux Encequiconc
5、ernelaterminologiegnrale,lelecteur sereporteralaCEI60050: VocabulaireElectro techniqueInternational (VEI). Pourlessymbolesgraphiques,lessymboleslittraux etlessignesdusagegnralapprouvsparlaCEI,le lecteurconsulteralaCEI60027: Symboleslittraux utiliserenlectrotechnique,laCEI60417:Symboles graphiquesuti
6、lisablessurlematriel.Index,relevet compilationdesfeuillesindividuelles, etlaCEI60617: Symbolesgraphiquespourschmas. PublicationsdelaCEItabliespar lemmecomitdtudes Lattentiondulecteurestattiresurleslistesfigurant lafindecettepublication,quinumrentles publicationsdelaCEIprparesparlecomit dtudesquiatab
7、lilaprsentepublication. * Voiradressesitewebsurlapagedetitre. Numbering Asfromthe1stJanuary1997allIECpublicationsare issuedwithadesignationinthe60000series. Consolidatedpublications ConsolidatedversionsofsomeIECpublications includingamendmentsareavailable.Forexample, editionnumbers1.0,1.1and1.2refer
8、,respectively,to thebasepublication,thebasepublication incorporatingamendment1andthebasepublication incorporatingamendments1and2. Validityofthispublication ThetechnicalcontentofIECpublicationsiskeptunder constantreviewbytheIEC,thusensuringthatthe contentreflectscurrenttechnology. Informationrelating
9、tothedateofthereconfirmationof thepublicationisavailableintheIECcatalogue. Informationontherevisionwork,theissueofrevised editionsandamendmentsmaybeobtainedfrom IEC NationalCommitteesandfromthefollowing IECsources: IECBulletin IECYearbook Onlineaccess* CatalogueofIECpublications Publishedyearlywithr
10、egularupdates (Onlineaccess)* Terminology,graphicalandletter symbols Forgeneralterminology,readersarereferredto IEC60050:InternationalElectrotechnicalVocabulary (IEV). Forgraphicalsymbols,andlettersymbolsandsigns approvedbytheIECforgeneraluse,readersare referredtopublicationsIEC60027: Lettersymbolst
11、o beusedinelectricaltechnology ,IEC60417: Graphical symbolsforuseonequipment.Index,surveyand compilationofthesinglesheets andIEC60617: Graphicalsymbolsfordiagrams. IECpublicationspreparedbythesame technicalcommittee Theattentionofreadersisdrawntotheendpagesof thispublicationwhichlisttheIECpublicatio
12、nsissued bythetechnicalcommitteewhichhaspreparedthe presentpublication. * Seewebsiteaddressontitlepage.NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 600768 Premiredition Firstedition 199710 Transformateursdepuissance Guidedapplication Powertransformers Applicationguide CommissionElectrotechniq
13、ueInternationale InternationalElectrotechnicalCommission Pourprix,voircatalogueenvigueur Forprice,seecurrentcatalogue IEC1997Droitsdereproductionrservs Copyrightallrightsreserved Aucunepartiedecettepublicationnepeuttrereproduiteni utilisesous quelqueformequecesoitetparaucun procd,lectroniqueoumcaniq
14、ue,ycomprislaphoto copieetlesmicrofilms,sanslaccordcritdelditeur. Nopartofthispublicationmaybereproducedorut ilizedin anyformorbyanymeans,electronicormechanical, includingphotocopyingandmicrofilm,withoutpermissionin writingfromthepublisher. InternationalElectrotechnicalCommission 3,ruedeVarembGeneva
15、,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/www.iec.ch CODEPRIX PRICECODE XC2 600768 CEI:1997 SOMMAIRE Pages AVANTPROPOS 4 Articles 1 Gnralits. 6 2 Propritscaractristiquesdesdiffrentescombinaisonsdenroulementstriphass etconceptionsdescircuitsmagntiques . 8 3 Propritscaractri
16、stiquesetapplicationauxautotransformateurs 16 4 Propritshomopolairescourantdechargeduneutreetconditionsdedfaut laterre,saturationmagntiqueetcourantdenclenchement . 24 5 Calculdescourantsdecourtcircuitpourlestransformateurstriphasstrois enroulements(transformateursenroulementssparsetautotransformateu
17、rs) dontlespointneutressontrelislaterre 50 6 Marcheenparallledestransformateursdanslesrseauxtriphass 80 7 Calculdelachutedetensionpourunechargespcifie,pertesdueslacharge duntransformateurtroisenroulements 92 8 Spcificationdesgrandeursassignesetdesgrandeursdeprises 124 9 Applicationenconvertisseurdes
18、transformateursnormaux . 146 10 Guidepourlamesuredespertesdestransformateursdepuissance . 150 AnnexeARelationsfondamentalespourlesdfautslaterremonophasetbiphas. 164600768 IEC:1997 3 CONTENTS Page FOREWORD. 5 Clause 1 General 7 2 Characteristicpropertiesofdifferentthreephasewindingcombinationsand mag
19、neticcircuitdesigns . 9 3 Characteristicpropertiesandapplicationofautoconnectedtransformers 17 4 Zerosequencepropertiesneutralloadcurrentandearthfaultconditions, magneticsaturationandinrushcurrent . 25 5 Calculationofshortcircuitcurrentsinthreewinding,threephasetransformers (separatewindingtransform
20、ersandautoconnectedtransformers) withearthedneutrals 51 6 Paralleloperationoftransformersinthreephasesystems. 81 7 Calculationofvoltagedropforaspecifiedload,threewindingtransformerloadloss . 93 8 Specificationofratedquantitiesandtappingquantities . 125 9 Convertorapplicationswithstandardtransformers
21、 147 10 Guidetothemeasurementoflossesinpowertransformers. 151 AnnexABasicrelationsforsinglephaseandtwophaseearthfaults. 1654 600768 CEI:1997 COMMISSIONLECTROTECHNIQUEINTERNATIONALE _ TRANSFORMATEURSDEPUISSANCE GUIDEDAPPLICATION AVANTPROPOS 1) LaCEI(CommissionElectrotechniqueInternationale)estuneorga
22、nisationmondialedenormalisationcompose delensembledescomitslectrotechniquesnationaux(ComitsnationauxdelaCEI).LaCEIapourobjetde favoriserlacooprationinternationalepourtouteslesquestionsdenormalisationdanslesdomainesde llectricitetdellectronique.Aceteffet,laCEI,entreautresactivits,publiedesNormesinter
23、nationales. Leurlaborationestconfiedescomitsdtudes,auxtravauxdesquelstoutComitnationalintressparle sujettraitpeutparticiper.Lesorganisationsinternationales,gouvernementalesetnongouvernementales,en liaisonaveclaCEI,participentgalementauxtravaux.LaCEIcollaboretroitementaveclOrganisation Internationale
24、deNormalisation(ISO),selondesconditionsfixesparaccordentrelesdeuxorganisations. 2) LesdcisionsouaccordsofficielsdelaCEIconcernantlesquestionstechniquesreprsentent,danslamesure dupossibleunaccordinternationalsurlessujetstudis,tantdonnquelesComitsnationauxintresss sontreprsentsdanschaquecomitdtudes. 3
25、) Lesdocumentsproduitsseprsententsouslaformederecommandationsinternationales.Ilssontpublis commenormes,rapportstechniquesouguidesetagrscommetelsparlesComitsnationaux. 4) Danslebutdencouragerlunificationinternationale,lesComitsnationauxdelaCEIsengagentappliquerde faontransparente,danstoutelamesurepos
26、sible,lesNormesinternationalesdelaCEIdansleursnormes nationalesetrgionales.ToutedivergenceentrelanormedelaCEIetlanormenationaleourgionale correspondantedoittreindiqueentermesclairsdanscettedernire. 5) LaCEInafixaucuneprocdureconcernantlemarquagecommeindicationdapprobationetsaresponsabilit nestpaseng
27、agequandunmatrielestdclarconformelunedesesnormes. 6) LattentionestattiresurlefaitquecertainsdeslmentsdelaprsenteNormeinternationalepeuventfaire lobjetdedroitsdepropritintellectuelleoudedroitsanalogues.LaCEInesauraittretenuepour responsabledenepasavoiridentifidetelsdroitsdepropritetdenepasavoirsignal
28、leurexistence. LaNormeinternationaleCEI600768attablieparlecomitdtudes14delaCEI: Transformateursdepuissance. CettepremireditiondelaCEI600768annuleetremplacelaCEI60606publieen1978. Cetteditionconstitueunervisiontechnique. Letextedecettenormeestissudesdocumentssuivants: FDIS Rapportdevote 14/260/FDIS 1
29、4/297/RVD Lerapportdevoteindiqudansletableaucidessusdonnetouteinformationsurlevoteayant aboutilapprobationdecettenorme. LaCEI60076comprendlespartiessuivantes,prsentessousletitregnral: Transformateursdepuissance. Partie1:1993,Gnralits Partie2:1993,Echauffement Partie3:1980,Niveauxdisolementetessaisdi
30、lectriques Partie5:1976,Tenueaucourtcircuit Partie8:1997,Guidedapplication LannexeAestdonneuniquementtitredinformation.600768 IEC:1997 5 INTERNATIONALELECTROTECHNICALCOMMISSION _ POWERTRANSFORMERS APPLICATIONGUIDE FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationfor
31、standardizationcomprising allnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromote internationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpr
32、eparationis entrustedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmay participateinthispreparatorywork.International,governmentalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization
33、 forStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwo organizations. 2) TheformaldecisionsoragreementsoftheIEContechnicalmattersexpress,asnearlyaspossible,an internationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentation fromallinteres
34、tedNationalCommittees. 3) Thedocumentsproducedhavetheformofrecommendationsforinternationaluseandarepublishedintheform ofstandards,technicalreportsorguidesandtheyareacceptedbytheNationalCommitteesinthatsense. 4) Inordertopromoteinternationalunification,IECNationalCommitteesundertaketoapplyIECInternat
35、ional Standardstransparentlytothemaximumextentpossibleintheirnationalandregionalstandards.Any divergencebetweentheIECStandardandthecorrespondingnationalorregionalstandardshallbeclearly indicatedinthelatter. 5) TheIECprovidesnomarkingproceduretoindicateitsapprovalandcannotberenderedresponsibleforany
36、equipmentdeclaredtobeinconformitywithoneofitsstandards. 6) AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubject ofpatentrights.TheIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardIEC600768hasbeenpreparedbyIECtechnical
37、committee14:Power transformers. ThisfirsteditionofIEC600768cancelsandreplacesIEC60606publishedin1978.This editionconstitutesatechnicalrevision. Thetextofthisstandardisbasedonthefollowingdocuments: FDIS Reportonvoting 14/260/FDIS 14/297/RVD Fullinformationonthevotingfortheapprovalofthisstandardcanbef
38、oundinthereporton votingindicatedintheabovetable. IEC60076consistsofthefollowingparts,underthegeneraltitle:Powertransformers. Part1:1993,General Part2:1993,Temperaturerise Part3:1980,Insulationlevelsanddielectrictests Part5:1976,Abilitytowithstandshortcircuit Part8:1997,Applicationguide AnnexAisfori
39、nformationonly.6 600768 CEI:1997 TRANSFORMATEURSDEPUISSANCE GUIDEDAPPLICATION 1Gnralits 1.1 Domainedapplicationetobjet Cettenormesappliqueauxtransformateursdepuissanceconformeslasriedenormes CEI60076. Sonbutestdinformerlesutilisateurssur certainescaractristiquesfondamentalesdefonctionnementdesdiffre
40、ntsmodesde couplageetdesconceptionsdescircuitsmagntiquesavecunerfrenceparticulireau phnomnehomopolaire; lescourantsdedfautdesrseauxdanslestransformateursaveccouplageYNyndet similaires; lamarcheenparallledestransformateurs,lecalculdelachuteoudelaugmentationde tensionduelachargeetlecalculdespertesdues
41、lachargepourlescombinaisonsde chargetroisenroulements; laslectiondesgrandeursassignesetdesgrandeursdeprisesaumomentdelachat, ensebasantsurlesconditionsprvisionnelles; lapplicationdestransformateursnormauxlachargeparconvertisseur; lestechniquesdemesureetdeprcisionlorsdelamesuredespertes. Unepartiedec
42、esinformationsestdenaturegnraleetestapplicabletousles transformateursdepuissancequellequesoitleurtaille.Dautreschapitrestraitent,cependant, desaspectsduproblmeneconcernantquelaspcificationetlutilisationdesgrandesunits hautetension. Lesrecommandationsnesontpasobligatoiresetneconstituentpasenellesmmesdes prescriptionsdespcification. Lesinformationsrelativeslacapacitdechargedestransformateursdepuissancesont prcisesdansla
