1、 IEC 60599 Edition 3.0 2015-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Mineral oil-filled electrical equipment in service Guidance on the interpretation of dissolved and free gases analysis Matriels lectriques remplis dhuile minrale en service Lignes directrices pour linterprtation de lanalyse d
2、es gaz dissous et des gaz libres IEC 60599:2015-09(en-fr) 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,
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19、 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 questions contactez-nous: csciec.ch. IEC 60599 Edition 3.0 2015-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Mineral oil-filled electrical equipment in ser
20、vice Guidance on the interpretation of dissolved and free gases analysis Matriels lectriques remplis dhuile minrale en service Lignes directrices pour linterprtation de lanalyse des gaz dissous et des gaz libres INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS
21、 17.220.99; 29.040.10; 29.180 ISBN 978-2-8322-2899-9 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! Veuillez vous assu
22、rer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60599:2015 IEC 2015 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms, definitions and abbreviations . 9 3.1 Terms and definitions 9 3.2 Abbreviations 11 3.2.1 Chemical names and formulae . 11 3
23、.2.2 General abbreviations 11 4 Mechanisms of gas formation 11 4.1 Decomposition of oil . 11 4.2 Decomposition of cellulosic insulation . 12 4.3 Stray gassing of oil . 12 4.4 Other sources of gas . 12 5 Identification of faults 13 5.1 General . 13 5.2 Dissolved gas compositions 13 5.3 Types of fault
24、s 13 5.4 Basic gas ratios 14 5.5 CO 2 /CO ratio 15 5.6 O 2 /N 2ratio . 16 5.7 C 2 H 2 /H 2ratio . 16 5.8 C 3hydrocarbons . 16 5.9 Evolution of faults . 16 5.10 Graphical representations . 17 6 Conditions for calculating ratios . 17 6.1 Examination of DGA values 17 6.2 Uncertainty on gas ratios 17 7
25、Application to free gases in gas relays . 18 8 Gas concentration levels in service 19 8.1 Probability of failure in service 19 8.1.1 General . 19 8.1.2 Calculation methods 20 8.2 Typical concentration values . 20 8.2.1 General . 20 8.2.2 Calculation methods 20 8.2.3 Choice of normality percentages 2
26、0 8.2.4 Alarm concentration values 21 8.3 Rates of gas increase . 21 9 Recommended method of DGA interpretation (see Figure 1) . 21 10 Report of results 22 Annex A (informative) Equipment application notes 24 A.1 General warning . 24 A.2 Power transformers . 24 Specific sub-types . 24 A.2.1IEC 60599
27、:2015 IEC 2015 3 Typical faults . 24 A.2.2Identification of faults by DGA . 25 A.2.3Typical concentration values 25 A.2.4Typical rates of gas increase . 26 A.2.5Specific information to be added to the DGA report (see Clause 10) 27 A.2.6 A.3 Industrial and special transformers . 27 Specific sub-types
28、 . 27 A.3.1Typical faults . 27 A.3.2Identification of faults by DGA. 27 A.3.3Typical concentration values 27 A.3.4 A.4 Instrument transformers 28 Specific sub-types . 28 A.4.1Typical faults . 28 A.4.2Identification of faults by DGA . 29 A.4.3Typical concentration values 29 A.4.4 A.5 Bushings . 30 Sp
29、ecific sub-types . 30 A.5.1Typical faults . 30 A.5.2Identification of faults by DGA . 30 A.5.3Typical concentration values 31 A.5.4 A.6 Oil-filled cables . 31 Typical faults . 31 A.6.1Identification of faults by DGA . 31 A.6.2Typical concentration values 31 A.6.3 A.7 Switching equipment . 32 Specifi
30、c sub-types . 32 A.7.1Normal operation . 32 A.7.2Typical faults . 32 A.7.3Identification of faults by DGA . 32 A.7.4 A.8 Equipment filled with non-mineral fluids 33 Annex B (informative) Graphical representations of gas ratios (see 5.10) 34 Bibliography 38 Figure 1 Flow chart 23 Figure B.1 Graphical
31、 representation 1 of gas ratios (see 3) 34 Figure B.2 Graphical representation 2 of gas ratios 35 Figure B.3 Graphical representation 3 of gas ratios Duvals triangle 1 for transformers, bushings and cables(see 4) . 36 Figure B.4 Graphical representation 4 of gas ratios Duvals triangle 2 for OLTCs (s
32、ee A.7.2) 37 Table 1 DGA interpretation table 14 Table 2 Simplified scheme of interpretation 15 Table 3 Ostwald solubility coefficients for various gases in mineral insulating oils . 19 Table A.1 Typical faults in power transformers . 25 Table A.2 Ranges of 90 % typical gas concentration values obse
33、rved in power transformers, in l/l . 26 4 IEC 60599:2015 IEC 2015 Table A.3 Ranges of 90 % typical rates of gas increase observed in power transformers (all types), in l/l/year . 26 Table A.4 Examples of 90 % typical concentration values observed on individual networks . 28 Table A.5 Typical faults
34、in instrument transformers 29 Table A.6 Ranges of 90 % typical concentration values observed in instrument transformers . 29 Table A.7 Maximum admissible values for sealed instrument transformers. 30 Table A.8 Typical faults in bushings . 30 Table A.9 Simplified interpretation scheme for bushings 31
35、 Table A.10 95 % typical concentration values in bushings 31 Table A.11 Ranges of 95 % typical concentration values observed on cables 32 Table A.12 Typical faults in switching equipment . 32 IEC 60599:2015 IEC 2015 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MINERAL OIL-FILLED ELECTRICAL EQUIPMEN
36、T IN SERVICE GUIDANCE ON THE INTERPRETATION OF DISSOLVED AND FREE GASES ANALYSIS 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 prom
37、ote 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
38、(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 als
39、o 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 possi
40、ble, 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. Whi
41、le 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
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43、on 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 by independent certification bodies. 6) All users should ensure that they have the latest edition of th
44、is 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 in
45、direct, 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
46、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 60599 has been prep
47、ared by IEC technical committee 10: Fluids for electrotechnical applications. This third edition cancels and replaces the second edition published in 1999 and Amendment 1:2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respe
48、ct to the previous edition: a) revision of 5.5, 6.1, 7, 8, 9, 10, A.2.6, A.3, A.7; b) addition of new sub-clause 4.3; c) expansion of the Bibliography; d) revision of Figure 1; e) addition of Figure B.4. 6 IEC 60599:2015 IEC 2015 The text of this standard is based on the following documents: FDIS Re
49、port on voting 10/967/FDIS 10/973/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. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC websit
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