IEC_60044-6ed1.0b.img.pdf

NORMECEIINTERNATIONALEIECINTERNATIONAL44-6STANDARDPremiere editionFirst edition1992-03Transformateurs de mesurePartie 6:Prescriptions concernant les transformateursde courant pour protection pour la rponseen regime transitoireInstrument transformersPart 6:Requirements for protective current transformersfor transient performanceIECNumero de referenceReference numberCEI/IEC 44-6:1992Validite de la presente publicationValidity of this publicationLe contenu technique des publications de la CEl est cons-The technical content of IEC publications is kept undertamment revu par la CEl afin quil reflete ltat actuel deconstant review by the IEC,thus ensuring that the contentla techniauereflects current technology.Des renseignements relatifs a la date de reconfirmation deInformation relating to the date of the reconfirmation of thela publication sont disponibles aupres du Bureau Central depublication is available from the IEC Central Office.la CEl.Les renseignements relatifs a ces revisions,a letablis-Information on the revision work,the issue of revisedsement des editions revisees et aux amendements peuventeditions and amendments may be obtained from IECetre obtenus aupres des Comites nationaux de la CEl etNational Committees and from the following IECdans les documents ci-dessous:sources:Bulletin de la CElIEC BulletinAnnuaire de la CElIEC YearbookPublie annuellementPublished yearlyCatalogue des publications de la CElCataloque of IEC publicationsPublie annuellement et mis a jour regulierementPublished yearly with regular updatesTerminologieTerminologyEn ce qui conceme la terminologie generale,le lecteur seFor general terminology,readers are referred to IEC 50:reportera a la CEl 50:Vocabulaire Electrotechnigue Inter-International Electrotechnical Vocabulary(IEV),which isnationa/(VEl),qui se presente sous forme de chapitresissued in the form of separate chapters each dealingsepares traitant chacun dun sujet defini.Des detailswith a specific field.Full details of the IEV will becomplets sur le VEl peuvent etre obtenus sur demande.supplied on request.See also the IEC MultilingualVoir egalement le dictionnaire multilingue de la CEl.Dictionary.Les termes et definitions figurant dans la presente publi-The terms and definitions contained in the present publi-cation ont ete soit tires du VEl,soit specifiquementcation have either been taken from the IEV or have beenapprouves aux fins de cette publicationspecifically approved for the purpose of this publication.Symboles graphiques et litterauxGraphical and letter symbolsPour les symboles graphiques,les symboles litteraux et lesFor graphical symbols,and letter symbols and signssignes dusage general approuves par la CEl,le lecteurapproved by the IEC for general use,readers are referred toconsultera:publications:la CEl 27:Symboles litteraux a utiliser enIEC 27:Letter symbols to be used in electricalelectro-technique;technology;la CEl 417:Symboles graphiques utilisables-IEC 417:Graphical symbols for use onsur le materiel.Index,releve et compilation desequipment.Index,survey and compilation of thefeuilles individuelles;single sheets,la CEl 617:Symboles graphiques pour schemas;IEC 617:Graphical symbols for diagrams;et pour les appareils electromedicaux,and for medical electrical equipment,la CEl 878:Symbolesgraphiquespour-IEC 878:Graphical symbols for electromedicalequipements electriques en pratique medicale.equipment in medical practice.Les symboles et signes contenus dans la presente publi-The symbols and signs contained in the present publicationcation ont ete soit tires de la CEl 27,de la CEI 417,de lahave either been taken from IEC 27,IEC 417,IEC 617CEI 617 et/ou de la CEI 878,soit specifiquement approuvesand/or IEC 878,or have been specifically approved for theaux fins de cette publicationpurpose of this publication.Publications de la CEl etablies par leIEC publications prepared by the samememe comite detudestechnical committeeLattention du lecteur est attiree sur les listes figurant a la finThe attention of readers is drawn to the end pages of thisde cette publication,qui enumerent les publications de lapublication which list the IEC publications issued by theCEl preparees par le comite detudes qui a etabli latechnical committee which has prepared the presentpresente publication.publication.-2-44-6CEISOMMAIREPagesAVANT-PROPOS4INTRODUCTION6Articles1 Domaine dapplication82 References normatives83 Definitions84 Valeurs normales et performances requises165 Methodes de specification206 Marquage de la plaque signaletique227 Essais26AnnexesA Equations theoriques fondamentales relatives au dimensionnement pourle regime transitoire34B Determination de la caracteristique dexcitation36C Essais directs58D Guide didentification des criteres de performance dun transformateur de courantdestine aux relais de protection72E Determination de lerreur sur le rapport des nombres de spires.8444-6IEC-3-CONTENTSPageFOREWORD5INTRODUCTION.Clause1 Scope92 Normative references.93Definitions.94 Ratings and performance requirements.175 Methods of specification.216 Marking of rating plate23277 Tests,22,.,4448444n11ttt1tt4t44454444444444441411118t1ttAnnexesA Basic theoretical equations for transient dimensioning.35B Determination of core magnetization characteristic.37C Direct tests59D Guide to performance criteria for current transformer for protection relaying.73E Determination of turns ratio error.85