IEC_255_12__1980.pdf

C O M M I S S I O N L E C T R O T E C H N I Q U E I N T E R N A T I O N A L E N O R M E D E L A G E I I N T E R N A T I O N A L E L E C T R O T E C H N I C A 1 C O M M I S S I 0 N I E C S T A N D A R D Publication 255-1 2 Premire dition-First edition 1980 Relais lectriques Douzime partie:Relais directionnels et relais de puissance deux grandeurs-dalimentation dentre Electrical relays Part 12:Directional relays and power relays with two input energizing quantities Droits de reproduction rservs-Copyright-all rights reserved Bureau Central de la Commission Electrotechnique Internationale Genve,Suisse 1,rue de Varernb Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ IEC 255 PT*KL2 80 W 4844893 002L20L T W Rvision de la prsente publication Revision of this publication Le contenu technique des publications de la CE1 est constam-ment revu par la Commission afin dassurer quil reflte bien ltat actuel de la technique.The technical content of IEC publications is kept undei constant review by the IEC,thus ensuring that the content reflects current technology.Les renseignements relatifs ce travail de rvision,Itablisse-ment des ditions rvises et aux mises jour peuvent tre obtenus auprs des Comits nationaux de la CE1 et en consultant les docu-ments ci-dessous:Information on the work of revision,the issue of revised editions and amendment sheets may be obtained from IEC National Committees and from the following IEC sources:Bulletin de la CE1 0 IECBulletin 0 Rapport dactivit de la CE1 Publi annuellement Catalogue des publications de la CE1 Publi annuellement 0 Report on IEC Activities Published yearly 0 Catalogue of IEC Publications Published yearly Terminologie Terminology En ce qui concerne la terminologie gnrale,le lecteur se reportera la Pubkation 50 de la CEI:Vocabulaire Electro-technique International(V.E.I.),qui est tablie sous forme de chapitres spars traitant chacun dun sujet dfini,lIndex gnral tant publi sparment.Des dtails complets sur le V.E.I.peuvent tre obtenus sur demande.Les termes et dfinitions figurant dans ia prsente publication ont t soit repris du V.E.I.,soit spcifiquement approuvs aux fins de cette publication.For general terminology,readers are referred to IEC Publi-cation 50:International Electrotechnical Vocabulary(I.E.V.),which is issued in the form of separate chapters each dealing with a specific field,the General Index being published as a separate booklet.Full details of the I.E.V.will be supplied on request.The terms and definitions contained in the present publication have either been taken from the I.E.V.or have been specifically approved for the purpose of this publication.Symboles graphiques et littraux Graphical and letter symbols Pour les symboles graphiques,symboles littraux et signes For graphical symbols,and letter symbols and signs approved dusage gnral approuvs par la CEI,le lecteur consultera:-la Publication 27 de la CEI:Symboles littraux utiliser en lectrotechnique;technology;-la Publication 117 de la CET:Symboles graphiques reconi-mands.by the IEC for general use,readers are referred to:-IEC Publication 27:Letter symbols to be used in electrical-IEC Publication 117:Recommended graphical symbols.The symbols and signs contained in the present publication have either been taken from IEC Publications 27 or 117,or have been specifically approved for the purpose of this publi-caiion.Les symboles et signes contenus dans la prsente publication ont t soit repris des Publications 27 OU 117 de la GEI,soit spkifiquement approuvs aux fins de cette publication.Autres publications de la CE1 tablies par le mme Other IEC publications prepared by the same Comit dEtudes Technical Committee Lattention du lecteur est attire sur la page 3 de la The attention of readers is drawn to the inside of the back couverture,qui numre les autres publications de la CE1 cover,which lists other IEC publications issued by the prpares par le Comit dEtudes qui a tabli la prsente Technical Committee which has prepared the present publication.publication.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Droits de reproduction rservs-Copyright-all rights reserved Aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd.lectronique ou mcanique,y compris la photocopie et les microfilms,sans laccord crit de lditeur.#o part of this publication may be reproduced or utilized in any form or by any means.electronic or mechanical.including photocopying and microfilm.viithot permission in writing from the publisher.Bureau Central de la Commission Electrotechnique Internationale Genve,Suisse 1,rue de Varernb Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction