1、 IEC 60076-14 Edition 1.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Power transformers Part 14: Liquid-immersed power transformers using high-temperature insulation materials Transformateurs de puissance Partie 14: Transformateurs de puissance immergs dans du liquide utilisant des matriaux
2、 isolants haute temprature IEC60076-14:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 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 phot
3、ocopying 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 lo
4、cal IEC member National Committee for further information. Droits de reproduction rservs. Sauf 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 microfi
5、lms, sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeur. Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de votre pay
6、s de rsidence. 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
7、 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 publicatio
8、ns 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 It also gives information on projects, replaced and withdrawn publications.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
9、 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
10、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
11、 Service Centre: csciec.ch. A propos de la CEI La Commission Electrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications CEI Le c
12、ontenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Liens utiles: Recherche de publications CEI - www.iec.ch/searchpub La recherche avance vous permet de trouver des publicat
13、ions CEI en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. Just Published CEI - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications de la CEI. Just Published dtai
14、lle les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les
15、 termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (VEI) en ligne. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60076-14
16、 Edition 1.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Power transformers Part 14: Liquid-immersed power transformers using high-temperature insulation materials Transformateurs de puissance Partie 14: Transformateurs de puissance immergs dans du liquide utilisant des matriaux isolants hau
17、te temprature INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XA ICS 29.180 PRICE CODE CODE PRIX ISBN 978-2-8322-1096-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Ma
18、ke sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60076-14 IEC:2013 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms and definitions 9 4 Insula
19、tion systems . 11 4.1 General 11 4.2 Winding insulation types 12 4.2.1 General 12 4.2.2 Summary of winding/system insulation types 13 4.2.3 Hybrid winding types 13 4.2.4 High-temperature insulation winding . 16 5 Temperature rise limits 17 5.1 General 17 5.2 Thermally upgraded paper (TUP) . 19 5.3 C
20、ellulose used in ester liquid . 19 6 Components and materials 19 6.1 General 19 6.2 Leads and cables . 19 7 Special design considerations . 20 7.1 Short-circuit considerations 20 7.2 Dielectric requirements 20 7.3 Temperature requirements . 20 7.4 Overload 22 8 Required information . 23 8.1 Informat
21、ion to be provided by the purchaser 23 8.1.1 Ambient temperatures and loading cycle . 23 8.1.2 Other unusual service conditions 23 8.2 Information to be provided by the manufacturer . 23 8.2.1 Thermal characteristics . 23 8.2.2 Guarantees . 23 9 Rating plate and additional information 23 9.1 Rating
22、plate . 23 9.2 Transformer manual . 24 10 Test requirements 24 10.1 Routine, type and special tests 24 10.2 Dissolved gas analysis . 24 10.3 OD cooled compact transformers . 24 10.4 Evaluation of temperature-rise tests for windings with multiple hot-spots . 24 10.5 Dielectric type tests . 26 11 Supe
23、rvision, diagnostics, and maintenance . 27 11.1 General 27 11.2 Transformers filled with mineral insulating oil . 27 11.3 Transformers filled with high-temperature insulating liquids . 27 Annex A (informative) Insulation materials . 28 60076-14 IEC:2013 3 Annex B (informative) Rapid temperature incr
24、ease and bubble generation . 35 Annex C (informative) Ester liquid and cellulose 38 Annex D (normative) Insulation system coding . 52 Bibliography 55 Figure 1 Example of semi-hybrid insulation windings . 14 Figure 2 Example of a mixed hybrid insulation winding 15 Figure 3 Example of full hybrid insu
25、lation windings 16 Figure 4 Example of high-temperature insulation system . 17 Figure 5 Temperature gradient conductor to liquid . 21 Figure 6 Modified temperature diagram for windings with mixed hybrid insulation system 26 Figure A.1 Example of a thermal endurance graph . 29 Figure B.1 Bubble evolu
26、tion temperature chart. 36 Figure C.1 Tensile strength ageing results of TUP in mineral oil and natural ester liquid. 39 Figure C.2 Composite tensile strength ageing results of TUP in mineral oil and natural ester liquid 40 Figure C.3 DP ageing results of TUP in mineral oil and natural ester liquid
27、41 Figure C.4 Composite DP ageing results of TUP in mineral oil and natural ester liquid. 42 Figure C.5 Tensile strength ageing results of kraft paper in mineral oil and natural ester liquid 42 Figure C.6 Composite tensile strength ageing results of kraft paper in mineral oil and natural ester liqui
28、d 43 Figure C.7 DP ageing results of kraft paper in mineral oil and natural ester liquid 43 Figure C.8 Composite DP ageing results of kraft paper in mineral oil and natural ester liquid 44 Figure C.9 Infrared spectra of kraft paper aged in liquid at 110 C for 175 days . 46 Figure C.10 Unit life vers
29、us temperature of TUP ageing data (least squares fit) . 48 Figure C.11 Unit life versus temperature of kraft paper ageing data (least squares fit) . 48 Table 1 Preferred insulation system thermal classes 12 Table 2 Winding/system insulation comparison 13 Table 3 Maximum continuous temperature rise l
30、imits for transformers with hybrid insulation systems 18 Table 4 Maximum continuous temperature rise limits for transformers with high-temperature insulation systems . 19 Table 5 Suggested maximum overload temperature limits for transformers with hybrid insulation systems 22 Table 6 Suggested maximu
31、m overload temperature limits for transformers with high-temperature insulation systems . 22 Table A.1 Typical properties of solid insulation materials . 32 Table A.2 Typical enamels for wire insulation 33 Table A.3 Typical performance characteristics of unused insulating liquids 34 Table C.1 Effect
32、 of moisture solubility limits on cellulose moisture reduction 46 Table C.2 Comparison of ageing results. 47 4 60076-14 IEC:2013 Table C.3 Maximum temperature rise for ester liquid/cellulose insulation systems . 49 Table C.4 Suggested maximum overload temperature limits for ester liquid/cellulose in
33、sulation systems 49 60076-14 IEC:2013 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ POWER TRANSFORMERS Part 14: Liquid-immersed power transformers using high-temperature insulation materials FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardizati
34、on 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 Internation
35、al 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 yin the subject dealt with may participate in t
36、his 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 tw
37、o 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 th
38、e 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 misinter
39、pretation 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
40、or regional 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 carri
41、ed 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 its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Comm
42、ittees 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 t
43、o 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
44、held responsible for identifying any or all such patent rights. International Standard IEC 60076-14 has been prepared by IEC technical committee 14: Power transformers. This first edition of IEC 60076-14 is an International Standard which cancels and replaces the second edition of the Technical Spec
45、ification IEC/TS 60076-14 published in 2009. It constitutes a technical revision. This International Standard includes the following significant technical changes with respect to the Technical Specification: a) the hot-spot relationship to thermal class is now defined; b) a new 140 thermal class is
46、defined; c) the number of insulation systems is reduced to only three: conventional, hybrid and high-temperature; 6 60076-14 IEC:2013 d) homogeneous high-temperature insulation system has been changed to just high-temperature insulation system; e) winding definitions were introduced to define variat
47、ions in the hybrid insulation system; f) the system example drawings have been revised for clarity; g) all suggested limits corresponding to Part 7 loading guide have been defined in a similar format; h) moisture equilibrium curves for high-temperature materials have been added to the moisture and b
48、ubble generation annex; i) an annex has been added to introduce the concept of thermal enhancement of cellulose by ester; j) some guide information, such as overload temperature limit suggestions was retained, but most of the other informative text was moved into informative annexes. The text of thi
49、s standard is based on the following documents: FDIS Report on voting 14/755/FDIS 14/759/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 parts of the IEC 60076 series can be found, under the general title Power trans
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1