IEC TR 60909-4-2000 Short-circuit currents in three-phase a.c systems - Part 4 Examples for the calculation of short-circuit currents《三相交流系统中的短路电流 第4部分 短路电流计算举例》.pdf

1、RAPPORT TECHNIQUE CEI IEC TECHNICAL REPORT TR609094 Premiredition Firstedition 200007 Courantsdecourtcircuitdanslesrseaux triphasscourantalternatif Partie4: Exemplespourlecalculdescourants decourtcircuit Shortcircuitcurrentsinthreephase a.c.systems Part4: Examplesforthecalculationof shortcircuitcurr

2、ents Numroderfrence Referencenumber IEC/TR609094:2000Numrosdespublications Depuisle1erjanvier1997,lespublicationsdelaCEI sontnumrotespartirde60000. Publicationsconsolides Lesversionsconsolidesdecertainespublicationsde laCEIincorporantlesamendementssontdisponibles. Parexemple,lesnumrosddition1.0,1.1e

3、t1.2 indiquentrespectivementlapublicationdebase,la publicationdebaseincorporantlamendement1,etla publicationdebaseincorporantlesamendements1 et2. Validitdelaprsentepublication LecontenutechniquedespublicationsdelaCEIest constammentrevuparlaCEIafinquilreflteltat actueldelatechnique. Desrenseignements

4、relatifsladatedereconfir mationdelapublicationsontdisponiblesdansle CataloguedelaCEI. Lesrenseignementsrelatifsdesquestionsltudeet destravauxencoursentreprisparlecomittechnique quiatablicettepublication,ainsiquelalistedes publicationstablies,setrouventdanslesdocumentsci dessous: SitewebdelaCEI* Cata

5、loguedespublicationsdelaCEI Publiannuellementetmisjour rgulirement (Catalogueenligne)* BulletindelaCEI DisponiblelafoisausitewebdelaCEI* etcommepriodiqueimprim Terminologie,symbolesgraphiques etlittraux Encequiconcernelaterminologiegnrale,lelecteur sereporteralaCEI60050: VocabulaireElectro technique

6、International (VEI). Pourlessymbolesgraphiques,lessymboleslittraux etlessignesdusagegnralapprouvsparlaCEI,le lecteurconsulteralaCEI60027: Symboleslittraux utiliserenlectrotechnique,laCEI60417:Symboles graphiquesutilisablessurlematriel.Index,relevet compilationdesfeuillesindividuelles, etlaCEI60617:

7、Symbolesgraphiquespourschmas. * Voiradressesitewebsurlapagedetitre. Numbering Asfrom1January1997allIECpublicationsare issuedwithadesignationinthe60000series. Consolidatedpublications ConsolidatedversionsofsomeIECpublications includingamendmentsareavailable.Forexample, editionnumbers1.0,1.1and1.2refe

8、r,respectively,to thebasepublication,thebasepublicationincor poratingamendment1andthebasepublication incorporatingamendments1and2. Validityofthispublication ThetechnicalcontentofIECpublicationsiskept underconstantreviewbytheIEC,thusensuringthat thecontentreflectscurrenttechnology. Informationrelatin

9、gtothedateofthereconfirmation ofthepublicationisavailableintheIECcatalogue. Informationonthesubjectsunderconsiderationand workinprogressundertakenbythetechnical committeewhichhaspreparedthispublication,aswell asthelistofpublicationsissued,istobefoundatthe followingIECsources: IECwebsite* Catalogueof

10、IECpublications Publishedyearlywithregularupdates (Onlinecatalogue)* IECBulletin AvailablebothattheIECwebsite*and asaprintedperiodical Terminology,graphicalandletter symbols Forgeneralterminology,readersarereferredto IEC60050:InternationalElectrotechnicalVocabulary (IEV). Forgraphicalsymbols,andlett

11、ersymbolsandsigns approvedbytheIECforgeneraluse,readersare referredtopublicationsIEC60027: Lettersymbolsto beusedinelectricaltechnology ,IEC60417: Graphical symbolsforuseonequipment.Index,surveyand compilationofthesinglesheets andIEC60617: Graphicalsymbolsfordiagrams. * Seewebsiteaddressontitlepage.

12、RAPPORT TECHNIQUE CEI IEC TECHNICAL REPORT TR609094 Premiredition Firstedition 200007 Courantsdecourtcircuitdanslesrseaux triphasscourantalternatif Partie4: Exemplespourlecalculdescourants decourtcircuit Shortcircuitcurrentsinthreephase a.c.systems Part4: Examplesforthecalculationof shortcircuitcurr

13、ents Commission Electrotechnique Internationale InternationalElectrotechnicalCommission Pourprix,voircatalogueenvigueur Forprice,seecurrentcatalogue IEC2000Droitsdereproductionrservs Copyrightallrightsreserved Aucunepartiedecettepublicationnepeuttrereproduiteni utilisesousquelqueformequecesoitetpara

14、ucunprocd, lectroniqueoumcanique,ycomprislaphotocopieetles microfilms,sanslaccordcritdelditeur. Nopartofthispublicationmaybereproducedorutilizedin anyformorbyanymeans,electronicormechanical, includingphotocopyingandmicrofilm,withoutpermissionin writingfromthepublisher. InternationalElectrotechnicalC

15、ommission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/www.iec.ch CODEPRIX PRICECODE XB2 TR609094CEI:2000 SOMMAIRE Pages AVANTPROPOS. .6 Articles 1 Gnralits 10 1.1 Domainedapplicationetobjet.10 1.2 Documentsderfrence.10 1.3 Dfinitions,symbolesetindices,etqu

16、ations12 2 Impdancesdirecte,inverseethomopolairedesmatrielslectriques .12 2.1 Lignesariennes,cblesetractancesdelimitationducourantdecourtcircuit 12 2.2 Transformateurs.14 2.3 Alternateursetgroupesdeproduction26 3 Calculdescourantsdecourtcircuitdansunrseaubassetension U n =400V 36 3.1 Problme36 3.2 D

17、terminationdesimpdancesdirectes36 3.2.1 Rseaudalimentation 36 3.2.2 Transformateurs.40 3.2.3 Lignes(cblesetlignearienne)40 3.3 Dterminationdesimpdanceshomopolaires.42 3.3.1 Transformateurs.42 3.3.2 Lignes(cblesetlignesariennes).42 3.4 Calculde “ k I et i p pourlescourtcircuitstriphass .44 3.4.1 Poin

18、tdecourtcircuitF144 3.4.2 PointdecourtcircuitF246 3.4.3 PointdecourtcircuitF348 3.5 Calculde “ k1 I et i p1 pourlescourtscircuitsphaseterre 48 3.5.1 PointdecourtcircuitF148 3.5.2 PointdecourtcircuitF252 3.5.3 PointdecourtcircuitF354 3.6 Rcapitulationdesrsultats54 4 Calculdescourantsdecourtcircuittri

19、phassdansunrseaumoyennetensioninfluence desmoteurs .56 4.1 Problme56 4.2 Calculcomplexepartirdegrandeursrelles 58 4.3 Calculaveclesractancesdecourtcircuitdumatriellectrique66 4.4 Calculpartirdesgrandeursrduites 70 4.5 Calculaveclamthodedesuperposition74TR609094IEC:2000 3 CONTENTS Page FOREWORD .7 Cl

20、ause 1 General11 1.1 Scopeandobject11 1.2 Referencedocuments .11 1.3 Definitions,symbolsandindices,andequations 13 2 Positivesequence,negativesequenceandzerosequenceimpedancesofelectrical equipment13 2.1 Overheadlines,cablesandshortcircuitlimitingreactors 13 2.2 Transformers15 2.3 Generatorsandpower

21、stationunits27 3 Calculationofshortcircuitcurrentsinalowvoltagesystem U n =400V37 3.1 Problem .37 3.2 Determinationofthepositivesequenceimpedances 37 3.2.1 Networkfeeder 37 3.2.2 Transformers .41 3.2.3 Lines(cablesandoverheadlines) 41 3.3 Determinationofthezerosequenceimpedances43 3.3.1 Transformers

22、 .43 3.3.2 Lines(cablesandoverheadlines) 43 3.4 Calculationof “ k I and i p forthreephaseshortcircuits .45 3.4.1 ShortcircuitlocationF145 3.4.2 ShortcircuitlocationF247 3.4.3 ShortcircuitlocationF349 3.5 Calculationof “ k1 I and i p1 forlinetoearthshortcircuits49 3.5.1 ShortcircuitlocationF149 3.5.2

23、 ShortcircuitlocationF253 3.5.3 ShortcircuitlocationF355 3.6 Collectionofresults.55 4 Calculationofthreephaseshortcircuitcurrentsinamediumvoltagesystem influenceofmotors 57 4.1 Problem .57 4.2 Complexcalculationwithabsolutequantities 59 4.3 Calculationwithshortcircuitreactancesofelectricalequipment

24、67 4.4 Calculationwithperunitquantities .71 4.5 Calculationwiththesuperpositionmethod 754 TR609094CEI:2000 Articles Pages 5 Calculdescourantsdecourtcircuittriphasspourungroupedeproductionet lerseauauxiliaire . .82 5.1 Problme82 5.2 Impdancesdecourtcircuitdesmatrielslectriques86 5.2.1 Rseaudalimentat

25、ion 86 5.2.2 Groupedeproduction 86 5.2.3 Transformateursauxiliaires .90 5.2.4 Transformateursbassetension2,5MVAet1,6MVA90 5.2.5 Moteursasynchrones .98 5.3 Calculdescourantsdecourtcircuit .98 5.3.1 PointdecourtcircuitF198 5.3.2 PointdecourtcircuitF2100 5.3.3 PointdecourtcircuitF3104 5.3.4 Pointdecour

26、tcircuitF4110 5.3.5 PointdecourtcircuitF5114 6 Rseaudessaipourlecalculdescourantsdecourtcircuitavecdesprogrammes informatiques,conformmentlaCEI609090.118 6.1 Gnralits.118 6.2 Rseaudessaihautetension380kV/110kV/30kV .120 6.2.1 Topologieetcaractristiquesdurseau .120 6.2.2 Impdancesdecourtcircuitdesmat

27、rielslectriques124 6.3 Rsultats 128 6.3.1 Courantsdecourtcircuittriphass 128 6.3.2 Courantsdecourtcircuitphaseterre .130TR609094IEC:2000 5 Clause Page 5 Calculationofthreephaseshortcircuitcurrentsforapowerstationunitand theauxiliarynetwork .83 5.1 Problem .83 5.2 Shortcircuitimpedancesofelectricaleq

28、uipment.87 5.2.1 Networkfeeder 87 5.2.2 Powerstationunit87 5.2.3 Auxiliarytransformers.91 5.2.4 Lowvoltagetransformers2,5MVAand1,6MVA 91 5.2.5 Asynchronousmotors 99 5.3 Calculationofshortcircuitcurrents.99 5.3.1 ShortcircuitlocationF199 5.3.2 ShortcircuitlocationF2101 5.3.3 ShortcircuitlocationF3105

29、 5.3.4 ShortcircuitlocationF4111 5.3.5 ShortcircuitlocationF5115 6 Testnetworkforthecalculationofshortcircuitcurrentswithdigitalprograms inaccordancewithIEC609090119 6.1 General 119 6.2 Highvoltagetestnetwork380kV/110kV/30kV121 6.2.1 Networktopologyanddata 121 6.2.2 Shortcircuitimpedancesofelectrica

30、lequipment 125 6.3 Results.127 6.3.1 Threephaseshortcircuitcurrents .129 6.3.2 Linetoearthshortcircuitcurrents 1316 TR609094CEI:2000 COMMISSIONLECTROTECHNIQUEINTERNATIONALE _ COURANTSDECOURTCIRCUITDANSLESRSEAUXTRIPHASS COURANTALTERNATIF Partie4:Exemplespourlecalculdescourantsdecourtcircuit AVANTPROP

31、OS 1) LaCEI(CommissionlectrotechniqueInternationale)estuneorganisationmondialedenormalisationcompose delensembledescomitslectrotechniquesnationaux(ComitsnationauxdelaCEI).LaCEIapourobjetde favoriserlacooprationinternationalepourtouteslesquestionsdenormalisationdanslesdomainesde llectricitetdellectro

32、nique.Aceteffet,laCEI,entreautresactivits,publiedesNormesinternationales.Leur laborationestconfiedescomitsdtudes,auxtravauxdesquelstoutComitnationalintressparlesujet traitpeutparticiper.Lesorganisationsinternationales,gouvernementalesetnongouvernementales,enliaison aveclaCEI,participentgalementauxtr

33、avaux.LaCEIcollaboretroitementaveclOrganisationInternationale deNormalisation(ISO),selondesconditionsfixesparaccordentrelesdeuxorganisations. 2) LesdcisionsouaccordsofficielsdelaCEIconcernantlesquestionstechniquesreprsentent,danslamesuredu possible,unaccordinternationalsurlessujetstudis,tantdonnquel

34、esComitsnationauxintressssont reprsentsdanschaquecomitdtudes. 3) Lesdocumentsproduitsseprsententsouslaformederecommandationsinternationales.Ilssontpubliscomme normes,spcificationstechniques,rapportstechniquesouguidesetagrscommetelsparlesComitsnationaux. 4) Danslebutdencouragerlunificationinternation

35、ale,lesComitsnationauxdelaCEIsengagentappliquerde faontransparente,danstoutelamesurepossible,lesNormesinternationalesdelaCEIdansleursnormes nationalesetrgionales.ToutedivergenceentrelanormedelaCEIetlanormenationaleourgionale correspondantedoittreindiqueentermesclairsdanscettedernire. 5) LaCEInafixau

36、cuneprocdureconcernantlemarquagecommeindicationdapprobationetsaresponsabilit nestpasengagequandunmatrielestdclarconformelunedesesnormes. 6) Lattentionestattiresurlefaitquecertainsdeslmentsduprsentrapporttechniquepeuventfairelobjetde droitsdepropritintellectuelleoudedroitsanalogues.LaCEInesauraittret

37、enuepourresponsabledenepas avoiridentifidetelsdroitsdepropritetdenepasavoirsignalleurexistence. LatcheprincipaledescomitsdtudesdelaCEIestllaborationdesNormesinternationales. Toutefois,uncomitdtudespeutproposerlapublicationdunrapporttechniquelorsquilaruni desdonnesdenaturediffrentedecellesquisontnorm

38、alementpubliescommeNormes internationales,celapouvantcomprendre,parexemple,desinformationssurltatdelatechnique. LaCEI609094,quiestunrapporttechnique,attablieparlecomitdtudes73delaCEI: Courantsdecourtcircuit. CerapporttechniquedoittreutilisconjointementaveclaCEI609090. Letextedecerapporttechniqueesti

39、ssudesdocumentssuivants: Projetdenqute Rapportdevote 73/105/CDV 73/108/RVC Lerapportdevoteindiqudansletableaucidessusdonnetouteinformationsurlevoteayant aboutilapprobationdecerapporttechnique. CettepublicationatrdigeselonlesDirectivesISO/CEI,Partie3. Cedocument,purementinformatif,nedoitpastreconsidr

40、commeuneNormeinternationale.TR609094IEC:2000 7 INTERNATIONALELECTROTECHNICALCOMMISSION _ SHORTCIRCUITCURRENTSINTHREEPHASEACSYSTEMS Part4:Examplesforthecalculationofshortcircuitcurrents FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcomprising all

41、nationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromote internationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpreparationis entrustedtotechni

42、calcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmay participateinthispreparatorywork.International,governmentalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization forStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwoorganizations. 2) TheformaldecisionsoragreementsoftheIEContechnicalmattersexpress,asnearlyaspossible,aninternational consensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentationfromall interestedNationalCommitte