IEC_TR_61000-4-38-2015.pdf

IEC TR 61000-4-38 Edition 1.0 2015-08 TECHNICAL REPORT Electromagnetic compatibility(EMC)Part 4-38:Testing and measurement techniques Test,verification and calibration protocol for voltage fluctuation and flicker compliance test systems IEC TR 61000-4-38:2015-08(en)BASIC EMC PUBLICATION colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC,Geneva,Switzerland 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 from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.IEC Central Office Tel.:+41 22 919 02 11 3,rue de Varemb Fax:+41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland 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.IEC Catalogue-webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards,Technical Specifications,Technical Reports and other documents.Available for PC,Mac OS,Android Tablets and iPad.IEC publications search-www.iec.ch/searchpub The advanced search enables 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by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications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 online 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 15 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC Glossary-std.iec.ch/glossary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications 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:csciec.ch.IEC TR 61000-4-38 Edition 1.0 2015-08 TECHNICAL REPORT Electromagnetic compatibility(EMC)Part 4-38:Testing and measurement techniques Test,verification and calibration protocol for voltage fluctuation and flicker compliance test systems INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.100.20 ISBN 978-2-8322-2870-8 BASIC EMC PUBLICATION Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinside 2 IEC TR 61000-4-38:2015 IEC 2015 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Terms and definitions.8 4 General.8 5 Objectives of flicker and voltage fluctuations test protocols.8 6 Manufacturers or owners information required.9 7 Performance criteria.9 8 General test guidelines.11 8.1 General.11 8.2 Essential information.11 9 Test equipment and accuracy.12 10 Detailed test procedures.13 10.1 Procedures common to all tests.13 10.2 Test no.1 Simple power source qualification test.14 10.2.1 Rationale.14 10.2.2 Test procedure.14 10.3 Test no.2 Verification of the Zref and/or Ztest impedance.15 10.3.1 Rationale.15 10.3.2 Test procedure.15 10.4 Tests no.3 to 6 Low frequency rectangular modulation rates of 1 CPM to 39 CPM.16 10.4.1 Rationale.16 10.4.2 Test procedure.16 10.5 Tests no.7 to 9 High frequency rectangular modulation rates of 110 CPM and up.17 10.5.1 Rationale.17 10.5.2 Test procedure.17 10.5.3 Uncertainties of this protocol,and methods to verify modulation accuracy.18 Annex A(normative)Requirements for external test equipment to verify modulation accuracy.20 Annex B(informative)Example test setup for modulation load unit.21 Annex C(informative)Some typical flicker test system integration issues to avoid.22 Bibliography.25 Figure 1 Illustration showing a rectangular 8 A current modulation pattern at 7 CPM.15 Figure 2 Illustration showing the method to determine the inductance of Zref or Ztest.16 Figure 3 Illustration showing a rectangular modulation pattern at 3,166 7 Hz.17 Figure 4 Illustration showing a rectangular