1、RAPPORT?CEITECHNIQUE?IECTECHNICAL?60638REPORT?Premire ditionFirst edition1979-01Critres dapprciation et cotation de lacommutation des machines tournantes de tractionCriteria for assessing and coding of thecommutation of rotating electrical machines fortractionIECNumro de rfrenceReference numberCEI/I
2、EC 60638:1979LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Numros des publicationsDepuis le 1er janvier 1997,les publications de la CEIsont numrotes partir de 60000.Publications consolidesLes versions consolides de certaines publicat
3、ions dela CEI incorporant les amendements sont disponibles.Par exemple,les numros ddition 1.0,1.1 et 1.2indiquent respectivement la publication de base,lapublication de base incorporant lamendement 1,et lapublication de base incorporant les amendements 1et 2.Validit de la prsente publicationLe conte
4、nu technique des publications de la CEI estconstamment revu par la CEI afin quil reflte ltatactuel de la technique.Des renseignements relatifs la date de reconfir-mation de la publication sont disponibles dans leCatalogue de la CEI.Les renseignements relatifs.des questions ltude etdes travaux en c-u
5、rs entrepris par le comit techniquequi a tabli cette publication,ainsi que la liste despublications tablies,se trouvent dans les documents ci-dessous:Site web de la CEI*Catalogue des publications de la CEIPubli annuellement et mis jourrgulirement(Catalogue en ligne)*Bufietin de la CEIDisponible la f
6、ois au site web de la CEI*et comme priodique imprimTerminologie,symboles graphiqueset littrauxEn ce qui concerne la terminologie gnrale,le lecteurse reportera la CEI 60050:Vocabulaire Electro-technique International(VEI).Pour les symboles graphiques,les symboles littrauxet les signes d sage gnral ap
7、prouvs par la CEI,lelecteur consulterL la CEI 60027:Symboles littraux utiliser en lectrotechnique,la CEI 60417:Symbolesgraphiques utilisables sur le matriel.Index,relev etcompilation des feuilles individuelles,et la CEI 60617:Symboles graphiques pour schmas.NumberingAs from 1 January 1997 all IEC pu
8、blications areissued with a designation in the 60000 series.Consolidated publicationsConsolidated versions of some IEC publicationsincluding amendments are available.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,tothe base publication,the base publication incor-porating amendment 1
9、and the base publicationincorporating amendments 1 and 2.Validity of this publicationThe technical content of IEC publications is keptunder constant review by the IEC,thus ensuring thatthe content reflects current technology.Information relating to the date of the reconfirmationof the publication is
10、 available in the IEC catalogue.Information on the subjects under consideration andwork in progress undertaken by the technicalcommittee which has prepared this publication,as wellas the list of publications issued,is to be found at thefollowing IEC sources:IEC web site*Catalogue of IEC publications
11、Published yearly with regular updates(On-line catalogue)*IEC BulletinAvailable both at the IEC web site*andas a printed periodicalTerminology,graphical and lettersymbolsFor general terminology,readers are referred toIEC 60050:International Electrotechnical Vocabulary(IEV).For graphical symbols,and l
12、etter symbols and signsapproved by the IEC for general use,readers arereferred to publications IEC 60027:Letter symbols tobe used in electrical technology,IEC 60417:Graphicalsymbols for use on equipment.Index,survey andcompilation of the single sheets and IEC 60617:Graphical symbols for diagrams.*Vo
13、ir adresse site web sur la page de titre.?*See web site address on title page.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IECRAPPORTTECHNIQUETECHNICALREPORTCEIIEC60638Premire ditionFirst edition1979-01Critres dapprciation et cotati
14、on de lacommutation des machines tournantes de tractionCriteria for assessing and coding of thecommutation of rotating electrical machines fortraction IEC 1979 Droits de reproduction rservs Copyright-all rights reservedAucune partie de cette publication ne peut tre reproduite ni?No part of this publ
15、ication may be reproduced or utilized inutilise sous quelque forme que ce soit et par aucun?any form or by any means,electronic or mechanical,procd,lectronique ou mcanique,y compris la photo-?including photocopying and microfilm,without permission incopie et les microfilms,sans laccord crit de ldite
16、ur.?writing from the publisher.International Electrotechnical Commission?3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300?e-mail:inmailiec.ch?IEC web site http:/www.iec.chCommission Electrotechnique InternationaleInternational Electrotechnical CommissionMeklayHapoguaa 3neKrporeXHH4ecnaa HOMHCCHeCODE PRIXPRICE CODEPour prix,voir catalogue en vigueurFor price,see current cataloguePLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUR
