1、 IEC/TR 62655 Edition 1.0 2013-05 TECHNICAL REPORT RAPPORT TECHNIQUE Tutorial and application guide for high-voltage fuses Guide explicatif et dapplication pour les fusibles haute tension IEC/TR 62655:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights res
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16、tion pour les fusibles haute tension INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XF ICS 29.120.50 PRICE CODE CODE PRIX ISBN 978-2-83220-811-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique
17、Internationale Warning! Make 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 TR 62655 IEC:2013 CONTENTS FOREWORD . 5 INTRODUCTION . 7 0.1 Aims and objectives of this technical r
18、eport . 7 0.2 How to use this technical report . 7 0.2.1 General . 7 0.2.2 Fuse tutorial 7 0.2.3 Application information 7 1 Scope . 9 2 Normative references . 9 3 Terms, definitions and abbreviations 10 3.1 Terms and definitions 10 3.2 Abbreviations 10 4 Tutorial section . 10 4.1 A simple introduct
19、ion to fuses 10 4.1.1 General . 10 4.1.2 Fuse classifications and terms . 13 4.1.3 Basic principles of fuse operation 15 4.1.4 Advantages of fuse protection . 15 4.1.5 Advantages of current-limiting fuses 16 4.1.6 Types of high voltage fuses . 17 4.1.7 Application of fuse types 20 4.2 Current-limiti
20、ng fuses 20 4.2.1 Construction and operation of current-limiting fuses 20 4.2.2 Classification of current-limiting fuses 24 4.2.3 Ratings of current-limiting fuses 25 4.2.4 Characteristics of current-limiting fuses . 26 4.3 Expulsion fuses . 29 4.3.1 General operating principles 29 4.3.2 Constructio
21、n and operation of expulsion fuses . 30 4.3.3 Classification of expulsion fuses 36 4.3.4 Ratings of expulsion fuses . 36 4.3.5 Characteristics of expulsion fuses . 37 4.4 Other related protective devices 38 4.4.1 General . 38 4.4.2 Electronically activated devices . 38 4.4.3 Additional types of non-
22、current limiting fuse 40 4.5 Fuse-bases (fuse-mounts or fuse supports) . 41 4.5.1 General . 41 4.5.2 Insulation properties 41 4.5.3 Current rating 42 5 Application section . 43 5.1 General application information . 43 5.1.1 Service considerations 43 5.1.2 Current rating selection . 52 5.1.3 Selectio
23、n of the rated voltage of the fuse . 52 5.1.4 Coordination between fuses, and between fuses and other protective devices 55 TR 62655 IEC:2013 3 5.1.5 Current rating and breaking capacity considerations for fuses in parallel 64 5.1.6 Voltage considerations of fuses in series . 65 5.1.7 Fuse recovery
24、voltage withstand 66 5.1.8 Partial discharge 66 5.2 Typical applications . 66 5.2.1 Protection of cables and overhead lines 66 5.2.2 Distribution transformer applications 71 5.2.3 Motor-circuit applications . 86 5.2.4 Capacitor protection applications . 90 5.2.5 Voltage transformer applications 104
25、5.2.6 Wind power generation applications 105 5.2.7 Current-limiting fuses used in conjunction with mechanical switching devices 108 5.3 Installation, operation, maintenance and replacement considerations 111 5.3.1 General . 111 5.3.2 Installation guidelines 112 5.3.3 Operation guidelines 113 5.3.4 M
26、aintenance considerations 114 5.3.5 Replacement considerations 116 5.4 Recycling 118 Annex A (informative) Practical guidelines for thermal de-rating of current-limiting fuses. 119 Bibliography 126 Figure 1 Fuse pre-arcing time-current characteristic curve . 11 Figure 2 High current interruption by
27、current-limiting fuse and expulsion fuse . 13 Figure 3 Comparison of operating Joule integral (I 2 t) versus prospective current for current-limiting fuses and non-current-limiting fuses . 17 Figure 4 Cut-away drawing of typical current-limiting fuse-link of the “DIN“ dimensioned type 21 Figure 5 Cu
28、rrent ranges for which different fuse classifications are intended 24 Figure 6 Typical cut-off characteristics . 27 Figure 7 Distribution fuse-cutout construction 31 Figure 8 Types of expulsion fuse . 34 Figure 9 Class B expulsion fuse . 35 Figure 10 Schematic of a commutating type of current-limite
29、r 39 Figure 11 Schematic of pyrotechnically assisted fuse . 40 Figure 12 Description of the terms “up-stream“ and “down-stream“ fuses . 56 Figure 13 Current-limiting fuse/Current-limiting fuse coordination example 58 Figure 14 Current-limiting fuse/Current-limiting fuse TCC curve example . 59 Figure
30、 15 Current-limiting fuse/Expulsion fuse example . 60 Figure 16 Current limiting fuse/Expulsion fuse TCC curve example 60 Figure 17 Expulsion fuse/Current-limiting fuse example . 61 Figure 18 Expulsion fuse/Current-limiting fuse TCC curve example 62 Figure 19 Reach example 69 Figure 20 Characteristi
31、cs relating to the protection of the HV/LV transformer circuit 76 4 TR 62655 IEC:2013 Figure 21 An example of matched melt coordination 81 Figure 22 An example of time-current crossover coordination 84 Figure 23 Fuse “no-damage“ margin 85 Figure 24 Characteristics relating to the protection of a mot
32、or circuit . 90 Figure 25 An example of capacitor case rupture curve characteristics 102 Figure A.1 Derating curves for some allowed temperature limits 122 Figure A.2 Practical example: dimensions 123 Figure A.3 Extract from IEC 60890 . 124 Figure A.4 Practical example of application 125 Table 1 Com
33、mon types of current-limiting fuse . 18 Table 2 Common types of expulsion fuse . 19 Table 3 Types of non-current-limiting fuse . 19 Table 4 Fuse-related devices . 19 Table A.1 Contact Temperature limits extracted from Table 6 of IEC 60282-1:2009 . 122 TR 62655 IEC:2013 5 INTERNATIONAL ELECTROTECHNIC
34、AL COMMISSION _ TUTORIAL AND APPLICATION GUIDE FOR HIGH-VOLTAGE FUSES 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 interna
35、tional 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
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45、nternational Standards. However, a technical committee may propose the publication of a technical report when it has collected data of a different kind from that which is normally published as an International Standard, for example “state of the art“. IEC 62655, which is a technical report, has been
46、 prepared by subcommittee 32A: High- Voltage Fuses, of IEC technical committee 32: Fuses The text of this technical report is based on the following documents: Enquiry draft Report on voting 32A/296/DTR 32A/301/RVC Full information on the voting for the approval of this technical report can be found
47、 in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 6 TR 62655 IEC:2013 Significant portions of this technical report were excerpted and reprinted with permission from the Institute of Electrical and Electronics
48、Engineers, Incorporated, (IEEE) from C37.48.1-2012, “IEEE Guide for Operation, Classification, Application, and Coordination of Current-Limiting Fuses with Rated Voltages 1-38kV“, Copyright 2002 IEEE, all rights reserved, 445 Hoes Lane, Piscataway, NJ 08854. Acknowledgments: The Working Group thanks
49、 the Institute of Electrical and Electronics Engineers, Incorporated, (IEEE) for permission to reproduce information from its global Standards IEEE C37.48.1-2012. All such extracts are copyright of IEEE, Piscataway, New Jersey. All rights reserved. Further information on the IEEE is available from www.standards.ieee.org. IEEE has no responsibility for the placement and context in which the extracts and con
