IEC 60076-10-2016 Power transformers - Part 10 Determination of sound levels《电力变压器.第10部分 声级的测定》.pdf

1、 IEC 60076-10 Edition 2.0 2016-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Power transformers Part 10: Determination of sound levels Transformateurs de puissance Partie 10: Dtermination des niveaux de bruit IEC 60076-10:2016-03(en-fr) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyrigh

2、t 2016 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 Nationa

3、l 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. Droits de reproduction rservs. Sa

4、uf indication contraire, 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 lIEC ou du Comit national de lIEC du pays du demandeur. Si vous av

5、ez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1

6、211 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 conte

7、nt 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 I

8、EC 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, techn

9、ical 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. Electro

10、pedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing 20 000 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

11、 - std.iec.ch/glossary 65 000 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 - web

12、store.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. A propos de lIEC La Commission Electrotechnique Internationale (IEC) est la premire organisation mondiale qui labore et publie des Normes inter

13、nationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. C

14、atalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android et iPad. Recherche de publica

15、tions IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. IEC Just Published - webstore.iec.ch/justpu

16、blished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne de termes lectroniques et lectriques. Il contient 20 000

17、termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 15 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire IEC - std.iec.ch/glossary 65 000 entres terminologiques lectrotechniques, en anglais et en franais, extr

18、aites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des

19、 questions contactez-nous: csciec.ch. IEC 60076-10 Edition 2.0 2016-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Power transformers Part 10: Determination of sound levels Transformateurs de puissance Partie 10: Dtermination des niveaux de bruit INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION

20、ELECTROTECHNIQUE INTERNATIONALE ICS 29.180 ISBN 978-2-8322-3252-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuil

21、lez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 60076-10:2016 IEC 2016 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 8 2 Normative references. 8 3 Terms and definitions 9 4 Sound power for different loading conditions 11 4.1 General . 11 4.2 Soun

22、d power at no-load excitation . 12 4.3 Sound power of the cooling device(s) 12 4.4 Sound power due to load current . 12 5 Sound level measurement specification 14 6 Instrumentation, calibration and accuracy . 15 7 Principal radiating surface 16 7.1 General . 16 7.2 Transformers with or without cooli

23、ng device . 16 7.3 Transformers in enclosures with cooling devices inside the enclosure 16 7.4 Transformers in enclosures with cooling devices outside the enclosure 17 7.5 Cooling devices mounted on a separate structure where the distance between the two principal radiating surfaces is 3 m . 17 7.6

24、Dry-type transformers 17 7.7 Dry-type air-core reactors 17 8 Prescribed contour 18 9 Microphone positions . 19 10 Calculation of the measurement surface area . 19 10.1 Measurement surface area for measuring distances up to 30 m 19 10.2 Measurement surface area for measuring distances larger than 30

25、m . 19 11 Sound measurement 20 11.1 Test conditions 20 11.1.1 Placement of test object . 20 11.1.2 Test energisation options . 20 11.1.3 Test application details 21 11.1.4 Prevailing ambient conditions . 21 11.2 Sound pressure method 21 11.2.1 General . 21 11.2.2 Test procedure . 21 11.2.3 Calculati

26、on of the spatially averaged sound pressure level 22 11.2.4 Validation of test measurements with respect to background noise 23 11.2.5 Calculation of environmental correction K . 23 11.2.6 Final correction for steady-state background noise and test environment . 25 11.3 Sound intensity method . 26 1

27、1.3.1 General . 26 11.3.2 Test procedure . 26 11.3.3 Calculation of average normal sound intensity and sound pressure level . 27 11.3.4 Measurement validation . 28 11.3.5 Final correction based on P-I index and direction flag . 28 IEC 60076-10:2016 IEC 2016 3 12 Determination of sound power level by

28、 calculation 29 13 Logarithmic addition and subtraction of individual sound levels . 29 14 Far-field calculations for distances larger than 30 m . 30 15 Presentation of results . 31 Annex A (informative) Narrow-band and time-synchronous measurements 40 A.1 General considerations 40 A.2 Narrow-band m

29、easurement . 40 A.2.1 General . 40 A.2.2 Post processing of narrow-band measurements to exclude background noise . 41 A.3 Time-synchronous averaging technique . 41 Annex B (informative) Typical report of sound level determination . 42 B.1 Sound pressure method 42 B.2 Sound pressure method Appendix f

30、or the point-by-point procedure 50 B.3 Sound intensity method . 51 B.4 Sound intensity method Appendix for the point-by-point procedure 59 Bibliography . 60 Figure 1 Typical microphone path / positions for sound measurement on transformers excluding cooling devices . 33 Figure 2 Typical microphone p

31、ath / positions for sound measurement on transformers having cooling devices mounted either directly on the tank or on a separate structure spaced 3 m away from the principal radiating surface of the main tank 34 Figure 3 Typical microphone path / positions for sound measurement on transformers havi

32、ng separate cooling devices spaced 3 m away from the principal radiating surface of the main tank 35 Figure 4 Typical microphone path / positions for sound measurement on cooling devices mounted on a separate structure spaced 3 m away from the principal radiating surface of the transformer . 36 Figu

33、re 5 Typical microphone positions for sound measurement on dry-type transformers without enclosures 37 Figure 6 Principle radiating surface and prescribed contour of dry-type air-core reactors 38 Figure 7 Environmental correction, K 39 Table 1 Test acceptance criteria . 23 Table 2 Approximate values

34、 of the average acoustic absorption coefficient . 25 4 IEC 60076-10:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ POWER TRANSFORMERS Part 10: Determination of sound levels FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comp

35、rising 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 Stan

36、dards, 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 prep

37、aratory 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 organ

38、izations. 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

39、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 misinterpretati

40、on 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 regi

41、onal publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out

42、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 its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees

43、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 N

44、ormative 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 re

45、sponsible for identifying any or all such patent rights. International Standard IEC 60076-10 has been prepared by IEC technical committee 14: Power transformers This second edition cancels and replaces the first edition published in 2001 and constitutes a technical revision. This edition includes th

46、e following significant technical changes with respect to the previous edition: additional useful definitions introduced; definition of distribution type transformers introduced for the purpose this standard; new clause for sound level measurement specification introduced; requirement for 1/3 octave

47、 band measurements introduced for transformers other than distribution type transformers; IEC 60076-10:2016 IEC 2016 5 standard measurement distance changed from 0,3 m to 1 m for transformers other than distribution type transformers; height of measurement surface is now clearly defined to count fro

48、m the reflecting plane; measurement surface formula unified; correction criteria for intensity method introduced; rules for sound measurements on dry-type reactors introduced; figures revised; new informative test report templates introduced (Annex B); IEC 60076-10-1 (application guide) revised in p

49、arallel providing worthwhile information for the use of this standard. The text of this standard is based on the following documents: FDIS Report on voting 14/846/FDIS 14/849/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. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all par