IEC 61000-4-27 - 2009.04.01

IEC 61000-4-27 Edition 1.1 2009-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Electromagnetic compatibility (EMC) – Part 4-27: Testing and measurement techniques – Unbalance, immunity test for equipment with input current not exceeding 16 A per phase Compatibilité électromagnétique (CEM) – Partie 4-27: Techniques d’essai et de mesure – Essai d’immunité aux déséquilibres pour des matériels avec un courant appelé n’excédant pas 16 A par phase IE C 6 10 00 -4 -2 7: 20 00 +A 1: 20 09 BASIC EMC PUBLICATION PUBLICATION FONDAMENTALE EN CEM ® THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright © 2009 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 IEC's member National Committee in the country of the requester. 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Egalement appelé Vocabulaire Electrotechnique International en ligne. ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csc@iec.ch Tél.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61000-4-27 Edition 1.1 2009-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Electromagnetic compatibility (EMC) – Part 4-27: Testing and measurement techniques – Unbalance, immunity test for equipment with input current not exceeding 16 A per phase Compatibilité électromagnétique (CEM) – Partie 4-27: Techniques d’essai et de mesure – Essai d’immunité aux déséquilibres pour des matériels avec un courant appelé n’excédant pas 16 A par phase INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CE ICS 33.100.20 PRICE CODE CODE PRIX ISBN 2-8318-1034-70 BASIC EMC PUBLICATION PUBLICATION FONDAMENTALE EN CEM ® Registered trademark of the International Electrotechnical Commission Marque déposée de la Commission Electrotechnique Internationale ® - - ` ` , , ` , , , ` ` , ` ` ` , , ` , ` ` , ` , ` ` ` ` , , ` - ` - ` , , ` , , ` , ` , , ` - - - – 2 – 61000-4-27 © IEC:2000+A1:2009 CONTENTS FORE word word文档格式规范word作业纸小票打印word模板word简历模板免费word简历 ...........................................................................................................................3 INTRODUCTION.....................................................................................................................5 1 Scope and object ..............................................................................................................6 2 Normative references........................................................................................................6 3 Definitions ........................................................................................................................7 4 General ............................................................................................................................7 5 Test levels ........................................................................................................................7 6 Test equipment .................................................................................................................8 6.1 Test generators .......................................................................................................8 6.2 Verification of the characteristics of the test generators............................................9 7 Test set-up .......................................................................................................................9 8 Test procedures..............................................................................................................10 8.1 Laboratory reference conditions .............................................................................10 8.2 Execution of the test ..............................................................................................10 9 Evaluation of test results.................................................................................................11 10 Test report...................................................................................................................... 11 Annex A (informative) Sources, effects and measurement of unbalance................................ 14 Annex B (informative) Calculation of the degree of unbalance............................................... 17 Annex C (informative) Information on test levels ...................................................................18 Annex D (informative) Electromagnetic environment classes ................................................ 19 Bibliography .......................................................................................................................... 20 Figure 1 – Example of unbalanced three-phase supply voltage (Test 3) ................................. 12 Figure 2 – Succession of three unbalance sequences of the test (the voltages Ua, Ub, Uc rotate) ................................................................................................................................... 12 Figure 3 – Schematic diagram of test instrumentation for unbalance ...................................... 13 Figure 4 – Example of test generator verification load..............................................................9 Figure A.1 – Unbalanced voltage vectors ...............................................................................15 Figure A.2 – Components of the unbalanced vectors in figure A.1 .......................................... 15 Table 1 – Test levels ...............................................................................................................8 Table 2 – Characteristics of the generator ...............................................................................8 - - ` ` , , ` , , , ` ` , ` ` ` , , ` , ` ` , ` , ` ` ` ` , , ` - ` - ` , , ` , , ` , ` , , ` - - - 61000-4-27 © IEC:2000+A1:2009 – 3 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ___________ ELECTROMAGNETIC COMPATIBILITY (EMC) – Part 4-27: Testing and measurement techniques – Unbalance, immunity test for equipment with input current not exceeding 16 A per phase 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. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements 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. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC 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 transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees 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 Publication or any other IEC 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 some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61000-4-27 has been prepared by subcommittee 77A: Low- frequency phenomena, of IEC technical committee 77: Electromagnetic compatibility. It forms part 4-27 of IEC 61000. It has the status of basic EMC publication in accordance with IEC Guide 107. This consolidated version of IEC 61000-4-27 consists of the first edition (2000) [documents 77A/308/FDIS and 77A/314/RVD] and its amendment 1 (2009) [documents 77A/672/FDIS and 77A/675/RVD]. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. It bears the edition number 1.1. - - ` ` , , ` , , , ` ` , ` ` ` , , ` , ` ` , ` , ` ` ` ` , , ` - ` - ` , , ` , , ` , ` , , ` - - - – 4 – 61000-4-27 © IEC:2000+A1:2009 A vertical line in the margin shows where the base publication has been modified by amendment 1. Annexes A, B, C and D are for information only. The committee has decided that the contents of the base publication and its amendments will remain unchanged until the maintenance result date indicated on the IEC web site 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. - - ` ` , , ` , , , ` ` , ` ` ` , , ` , ` ` , ` , ` ` ` ` , , ` - ` - ` , , ` , , ` , ` , , ` - - - 61000-4-27 © IEC:2000+A1:2009 – 5 – INTRODUCTION This standard is part of IEC 61000 series, according to the following structure: Part 1: General General considerations (introduction, fundamental principles) Definitions, terminology Part 2: Environment Description of the environment Classification of the environment Compatibility levels Part 3: Limits Emission limits Immunity limits (in so far as they do not fall under the responsibility of product committees) Part 4: Testing and measurement techniques Measurement techniques Testing techniques Part 5: Installation and mitigation guidelines Installation guidelines Mitigation methods and devices Part 6: Generic standards Part 9: Miscellaneous Each part is further subdivided into several parts, published either as International Standards or as technical specifications or technical reports, some of which have already been published as sections. Others will be published with the part number followed by a dash and completed by a second number identifying the subdivision (example: 61000-6-1). - - ` ` , , ` , , , ` ` , ` ` ` , , ` , ` ` , ` , ` ` ` ` , , ` - ` - ` , , ` , , ` , ` , , ` - - - – 6 – 61000-4-27 © IEC:2000+A1:2009 ELECTROMAGNETIC COMPATIBILITY (EMC) – Part 4-27: Testing and measurement techniques – Unbalance, immunity test for equipment with input current not exceeding 16 A per phase 1 Scope and object This part of IEC 61000 is a basic EMC (electromagnetic compatibility) publication. It considers immunity tests for electric and/or electronic equipment (apparatus and system) in its electro- magnetic environment. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial networks. The object of this standard is to establish a reference for evaluating the immunity of electrical and electronic equipment when subjected to unbalanced power supply voltage. This standard applies to 50 Hz/60 Hz three-phase powered electrical and/or electronic equipment with rated line current up to 16 A per phase. This standard does not apply to equipment with three-phase plus neutral connection if that equipment operates as a group of single-phase loads connected between phase and neutral. This standard does not apply to electrical and/or electronic equipment connected to a.c. 400 Hz distribution networks. This standard does not include tests for the zero-sequence unbalance factor. The immunity test levels required for a specific electromagnetic environment together with performance criteria are indicated in the product, product family or generic standards as applicable. This immunity test should be included in product, product family or generic standards when equipment is likely to show reduced performance or function when exposed to a supply voltage with voltage unbalance. The verification of the reliability of electrical components (capacitors, motors, etc.) and long- term effects (greater than a few minutes) is not considered in this standard. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 61000. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 61000 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60050(161), International Electrotechnical Vocabulary (IEV) – Chapter 161: Electro- magnetic compatibility IEC 61000-2-4, Electromagnetic compatibility (EMC) – Part 2: Environment – Section 4: Compatibility levels in industrial plants for low-frequency conducted disturbances 61000-4-27 © IEC:2000+A1:2009 – 7 – 3 Definitions For the purposes of this part of IEC 61000, the following definitions apply. 3.1 immunity (to a disturbance) ability of a device, equipment or system to perform without degradation in the presence of an electromagnetic disturbance [IEV 161-01-20] 3.2 voltage unbalance in a polyphase system, condition in which the r.m.s. values of the phase voltages or the phase angles between consecutive phases are not all equal [IEV 161-08-09] 3.3 unbalance factor ku2 (%) ratio of the negative sequence component to the positive sequence component measured at mains frequency (50 Hz or 60 Hz) as defined by the method of symmetrical components ku2 = 100 % (U2 / U1) (negative-sequence voltage/positive-sequence voltage) NOTE The negative-sequence voltages in a network mainly result from the negative currents of unbalanced loads flowing in the network. 3.4 malfunction termination of the ability of an equipment to carry out intended functions or the execution of unintended functions by the equipment 4 General Three-phase electrical and electronic equipment may be affected by voltage unbalance. Annex A describes the sources, effects and measurement of this disturbance. Unbalance is