IEC TR 62655:2013

Tutorial and application guide for high-voltage fuses

IEC/TR 62655:2013 provides information for understanding the construction, operation and application of high-voltage fuses in general. Current-limiting, expulsion, electronic, and other, non-current-limiting, fuses rated above 1 kV a.c. are all covered, as are North American, European and other application practices. As a technical report, this document contains no requirement and is informative only. Key words: high-voltage fuses

Guide explicatif et d'application pour les fusibles à haute tension

La CEI/TR 62655:2013 donne des informations afin de faciliter la compréhension de la fabrication, du fonctionnement et de l'application des fusibles à haute tension dans leur ensemble. Tous les fusibles limiteurs de courant, fusibles à expulsion, électroniques, et autres fusibles non limiteurs de courant, ayant une tension assignée supérieure à 1 kV courant alternatif, sont couverts au même titre que les pratiques usuelles en Amérique du Nord, en Europe et autres. En tant que rapport technique, le présent document ne contient aucune exigence et est uniquement informatif. Mots clés: fusibles à haute tension

General Information

• Status: Published
• Publication Date: 21-May-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• Technical Committee: SC 32A - High-voltage fuses
• Drafting Committee: WG 6 - TC 15/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 31-Aug-2013
• Completion Date: 22-May-2013

Relations

• Replaces: IEC TR 60787:2007 - Application guide for the selection of high-voltage current- limiting fuse-links for transformer circuits
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC/TR 62655 ®
Edition 1.0 2013-05
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
Tutorial and application guide for high-voltage fuses

Guide explicatif et d'application pour les fusibles à haute tension

IEC/TR 62655:2013
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IEC/TR 62655 ®
Edition 1.0 2013-05
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
Tutorial and application guide for high-voltage fuses

Guide explicatif et d'application pour les fusibles à haute tension

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XF
ICS 29.120.50 ISBN 978-2-83220-811-3

– 2 – TR 62655 © IEC:2013
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
0.1 Aims and objectives of this technical report . 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 introduction 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-limiting 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 Construction 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-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 Selection 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 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
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 Maintenance 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 current-limiting fuse and expulsion fuse . 13
Figure 3 – Comparison of operating Joule integral (I 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 – Current 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 curr
...