IEC_62032-2012_IEEE_Std_C57.135.pdf

IEC 62032 Edition 2.0 2012-06 INTERNATIONAL STANDARD Guide for the Application,Specification,and Testing of Phase-Shifting Transformers IEC 62032:2012(E)IEEE Std.C57.135:2011 IEEE Std C57.135 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 IEEE All rights reserved.IEEE is a registered trademark in the U.S.Patent&Trademark Office,owned by the Institute of Electrical and Electronics Engineers,Inc.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the IEC Central Office.Any questions about IEEE copyright should be addressed to the IEEE.Enquiries about obtaining additional rights to this publication and other information requests should be addressed to the IEC or your local IEC member National Committee.IEC Central Office Institute of Electrical and Electronics Engineers,Inc.3,rue de Varemb 3 Park Avenue CH-1211 Geneva 20 New York,NY 10016-5997 Switzerland United States of America Tel.:+41 22 919 02 11 stds.infoieee.org Fax:+41 22 919 03 00 www.ieee.org infoiec.ch www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.Useful links:IEC publications search-www.iec.ch/searchpub The advanced search enables you to find IEC publications by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.Available on-line and also once a month by email.Electropedia-www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary(IEV)on-line.Customer Service Centre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance,please contact the Customer Service Centre:csciec.ch.Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC 62032 Edition 2.0 2012-06 INTERNATIONAL STANDARD Guide for the Application,Specification,and Testing of Phase-Shifting Transformers INTERNATIONAL ELECTROTECHNICAL COMMISSION X ICS 29.180 PRICE CODE ISBN 978-2-83220-101-5 Warning!Make sure that you obtained this publication from an authorized distributor.IEEE Std C57.135 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC 62032:2012 ii IEEE Std C57.135-2011 Published by IEC under license from IEEE.2011 IEEE.All rights reserved.Contents 1.Overview.1 1.1 Scope.1 1.2 Purpose.1 2.Normative references.2 3.Definitions.2 4.Application and theory of PSTs.4 4.1 Introduction.4 4.2 Basic principle of applicationadvanced and retard phase angle.4 4.3 PST under load.6 4.4 Power transfer.8 4.5 Types of PSTs.10 4.6 Special on load tap changer(OLTC)features.16 4.7 Arrangement of more than one PST.20 4.8 Design criteria.20 5.Service conditions.21 5.1 Usual service conditions.21 5.2 Loading at other than rated conditions.22 5.3 Unusual service conditions.22 5.4 Protection.23 6.Rating data.26 6.1 Polarity,angular displacement,and terminal markings.26 6.2 Impedance.26 6.3 Name plates.27 7.Construction.27 7.1 Enclosed throat connections.27 7.2 Liquid insulation and preservation system.27 8.Short-circuit characteristics.28 8.1 Short-circuit requirements.28 9.Control system.29 9.1 Control equipment and accessories.29 9.2 Requirements.29 9.3 Test code for control systems.31 10.Testing of PSTs.32 10.1 General.32 10.2 Special tests for PSTs.33 11.Tolerances.34 11.1 General.34 11.2 Tolerances for ratio of series and exciting units.34 11.3 Tolerance for phase angle and impedance.34 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC 62032:2012 IEEE Std C57.135-2011 iii Published by IEC under license from IEEE.2011 IEEE.All rights reserved.12