IEC∕IEEE 60076-16：2018 电力变压器 第16部分：风力发电用变压器.pdf

IEC/IEEE 60076-16 Edition 2.0 2018-09 INTERNATIONAL STANDARD Power transformers Part 16:Transformers for wind turbine applications IEC/IEEE 60076-16:2018-09(en)Authorized licensed use limited to:University of Sydney.Downloaded on September 30,2018 at 14:40:38 UTC from IEEE Xplore.Restrictions apply.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2018 IEC,Geneva,Switzerland Copyright 2018 IEEE All rights reserved.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 being secured.Requests for permission to reproduce should be addressed to either IEC at the address below or IECs member National Committee in the country of the requester or from IEEE.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.:[phone] stds.iprieee.org infoiec.ch www.ieee.org 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 the IEEE IEEE is the worlds largest professional association dedicated to advancing technological innovation and excellence for the benefit of humanity.IEEE and its members inspire a global community through its highly cited publications,conferences,technology standards,and professional and educational activities.About IEC/IEEE publications The technical content of IEC/IEEE publications is kept under constant review by the IEC and IEEE.Please make sure that you have the latest edition,a corrigendum or an amendment might have been published.IEC Catalogue-webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards,Technical 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issued since 2002.Some entries have been collected from earlier publications of IEC TC 37,77,86 and CISPR.IEC 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:salesiec.ch.Authorized licensed use limited to:University of Sydney.Downloaded on September 30,2018 at 14:40:38 UTC from IEEE Xplore.Restrictions apply.IEC/IEEE 60076-16 Edition 2.0 2018-09 INTERNATIONAL STANDARD Power transformers Part 16:Transformers for wind turbine applications INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 27.180;29.180 IEC ISBN 978-2-8322-5807-1 IEEE ISBN 978-1-5044-5179-6STD23312 Warning!Make sure that you obtained this publication from an authorized distributor.Registered trademark of the International Electrotechnical Commission Authorized licensed use limited to:University of Sydney.Downloaded on September 30,2018 at 14:40:38 UTC from IEEE Xplore.Restrictions apply.2 IEC/IEEE 60076-16:2018 IEC/IEEE 2018 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references.6 2.1 IEC references.6 2.2 IEEE references.6 2.3 ISO references.7 2.4 CENELEC references.7 3 Terms and definitions.7 4 Use of normative references.8 5 Rating.8 6 Service conditions.8 6.1 Normal service conditions.8 6.1.1 General.8 6.1.2 Temperature of external cooling medium.8 6.2 Particular service conditions for transformers installed in a tower or nacelle.9 6.2.1 General.9 6.2.2 Temperature rise correction.9 6.3 Content of harmonic currents in the transformer.10 6.4 Over-excitation.11 6.5 Harmonic distortion of voltage.11 6.6 Transient voltages.11 6.7 Humidity and salinity.11 6.8 Level of vibration.12 6.9 Corrosion protection.12 6.10 Consideration for hermetically sealed transformers.12 6.11 Flammability issues with transformers mounted in the tower or nacelle.12 6.12 Thermal cycling of transformer.12 7 Electrical characteristics.12 7.1 Highest voltage for equipment.12 7.2 Tappings(tap-changer).12 7.3 Connection group.13 7.4 Dimensioning of neutral connection.13 7.5 Short-circuit impedance.13 7.6 Insulation levels for high and low voltage windings.13 7.7 Overload capability.13 7.8 Inrush current.14 7.9 Frequency of energization.14 7.10 Ability to withstand short circuit.14 7.11 Operation with forced cooling.14 7.12 Over-temperature protection.14 8 Rating plate.14 9 Tests.15 9.1 List and classification of tests(routine,type and special tests).15 9.2 Additional tests for wind turbine transformers.15 Authorized licensed use limited to:University of Sydney.Downloaded on September 30,2018 at 14:40:38 UTC from IEEE Xplore.Restrictions apply.IEC/IEEE 60076-16:2018 3 IEC/IEEE 20189.2.1 General.15 9.2.2 Lightning impulse type tests.15 9.2.3 Lightning impulse routine sample tests.15 9.2.4 Partial discharge test for liquid-immersed transformers.15 9.2.5 Climatic and environmental tests for dry-type transformers.15 Annex A(informative)Effects of voltage harmonics.16 A.1 Design and specification considerations.16 A.2 Effects of voltage harmonics.16 Bibliography.19 Table 1 Recommended minimum values of short-circuit impedance for transformers with two separate windings.13 Table A.1 Example of voltage harmonic order.17 Authorized licensed use limited to:University of Sydney.Downloaded on September 30,2018 at 14:40:38 UTC from IEEE Xplore.Restrictions apply.4 IEC/IEEE 60076-16:2018 IEC/IEEE 2018 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ POWER TRANSFORMERS Part 16:Transformers for wind turbine applications FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national electrotechnical committees(IEC National Committees).The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other activities,IEC publishes International Standards,Technical Specifications,Technical Reports,Publicly Available Specifications(PAS)and Guides(hereafter referred to as“IEC Publication(s)”).Their preparation is entrusted to technical committees;any IEC National Committee interested in the subject dealt with may participate in this preparatory work.International,governmental and non-governmental organizations liaising with the IEC also participate in this preparation.IEEE Standards documents are developed within IEEE Societies and Standards Coordinating Committees of the IEEE Standards Association(IEEE-SA)Standards Board.IEEE develops its standards through a consensus development process,approved by the American National Standards Institute,which brings together volunteers representing varied viewpoints and interests to achieve the final product.Volunteers are not necessarily members of IEEE and serve without compensation.While IEEE administers the process and establishes rules to promote fairness in the consensus development process,IEEE does not independently evaluate,test,or verify the accuracy of any of the information contained in its standards.Use of IEEE Standards documents is wholly voluntary.IEEE documents are made available for use subject to important notices and legal disclaimers(see http:/standards.ieee.org/IPR/disclaimers.html for more information).IEC collaborates closely with IEEE in accordance with conditions determined by agreement between the two organizations.This Dual Logo International Standard was jointly developed by the IEC and IEEE under the terms of that agreement.2)The formal decisions of IEC on technical matters express,as nearly as possible,an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.The formal decisions of IEEE on technical matters,once consensus within IEEE Societies and Standards Coordinating Committees has been reached,is determined by a balanced ballot of materially interested parties who indicate interest in reviewing the proposed standard.Final approval of the IEEE standards document is given by the IEEE Standards Association(IEEE-SA)Standards Board.3)IEC/IEEE Publications have the form of recommendations for international use and are accepted by IEC National Committees/IEEE Societies in that sense.While all reasonable efforts are made to ensure that the technical content of IEC/IEEE Publications is accurate,IEC or IEEE cannot be held responsible for the way in which they are used or for any misinterpretation by any end user.4)In order to promote international uniformity,IEC National Committees undertake to apply IEC Publications(including IEC/IEEE Publications)transparently to the maximum extent possible in their national and regional publications.Any divergence between any IEC/IEEE Publication and the corresponding national or regional publication shall be clearly indicated in the latter.5)IEC and IEEE do not provide any attestation of conformity.Independent certification bodies provide conformity assessment services and,in some areas,access to IEC marks of conformity.IEC and IEEE are not responsible for any services carried out by independent certification bodies.6)All users should ensure that they have the latest edition of this publication.7)No liability shall attach to IEC or IEEE or their directors,employees,servants or agents including individual experts and members of technical committees and IEC National Committees,or volunteers of IEEE Societies and the Standards Coordinating Committees of the IEEE Standards Association(IEEE-SA)Standards Board,for any personal injury,property damage or other damage of any nature whatsoever,whether direct or indirect,or for costs(including legal fees)and expenses arising out of the publication,use of,or reliance upon,this IEC/IEEE Publication or any other IEC or IEEE Publications.8)Attention is drawn to the normative references cited in this publication.Use of the referenced publications is indispensable for the correct application of this publication.9)Attention is drawn to the possibility that implementation of this IEC/IEEE Publication may require use of material covered by patent rights.By publication of this standard,no position is taken with respect to the existence or validity of any patent rights in connection therewith.IEC or IEEE shall not be held responsible for identifying Essential Patent Claims for which a license may be required,for conducting inquiries into the legal validity or scope of Patent Claims or determining whether any licensing terms or conditions provided in connection with submission of a Letter of Assurance,if any,or in any licensing agreements are reasonable or non-discriminatory.Users of this standard are expressly advised that determination of the validity of any patent rights,and the risk of infringement of such rights,is entirely their own responsibility.Authorized licensed use limited to:University of Sydney.Downloaded on September 30,2018 at 14:40:38 UTC from IEEE Xplore.Restrictions apply.IEC/IEEE 60076-16:2018 5 IEC/IEEE 2018International Standard IEC/IEEE 60076-16 has been prepared by IEC technical committee 14:Power transformers,in cooperation with Performance Characteristics Subcommittee of the IEEE Power and Energy Society 1,under the IEC/IEEE Dual Logo Agreement between IEC and IEEE.This second edition of IEC/IEEE 60076-16 cancels and replaces IEC 60076-16:2011,and constitutes a technical revision.The main changes with respect to the previous edition are as follows:1)relationship between transformer rated power and the output current from the associated generator is introduced;2)thermal correction of the effective cooling medium has been introduced;3)testing regime has been strengthened to ensure transformers are suitable for the harsh electrical environment to which they are subjected.This publication is published as an IEC/IEEE Dual Logo standard.The text of this standard is based on the following IEC documents:FDIS Report on voting 14/959/FDIS 14/965/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives,Part 2.A list of all parts in the IEC/IEEE 60076 series,published under the general title Power transformers,can be found on the IEC website.The IEC Technical Committee and IEEE Technical Committee have decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under http:/webstore.iec.ch in the data related to the specific publication.At this date,the publication will be reconfirmed,withdrawn,replaced by a revised edition,or amended.A bilingual version of this publication may be issued at a later date._ 1 A list of IEEE participants can be found at the following URL:https:/standards.ieee.org/project/60076-16.html Authorized licensed use limited to:University of Sydney.Downloaded on September 30,2018 at 14:40:38 UTC from IEEE Xplore.Restrictions apply.6 IEC/IEEE 60076-16:2018 IEC/IEEE 2018 POWER TRANSFORMERS Part 16:Transformers for wind turbine applications 1 Scope This part of IEC 60076 applies to dry-type and liquid-immersed transformers for wind turbine step-up applications having a winding with highest voltage for equipment up to and including 72,5 kV.This document applies to the transformer used to connect the wind turbine generator to the wind farm power collection system or adjacent distribution network and not the transformer used to connect several wind turbines to a distribution or transmission network.Transformers covered by this document comply with the relevant requirements prescribed in the IEC 60076 standards or IEEE C57 standards.2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document.For dated references,only the edition cited applies.For undated references,the latest edition of the referenc