prEN IEC 61558-2-13:2021
(Main)Safety of transformers, reactors, power supply units and combinations thereof - Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers for general applications
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers for general applications
This part of IEC 61558 deals with the safety of auto-transformers for general applications and power supply units incorporating auto-transformers for general applications. Transformers incorporating electronic circuits are also covered by this document. NOTE 1 Safety includes electrical, thermal and mechanical aspects. Unless otherwise specified, from here onward, the term transformer covers auto-transformers for general applications and power supply units incorporating auto-transformers for general applications. For power supply units (linear) this document is applicable. For switch mode power supply units IEC 61558-2-16 is applicable. This document is applicable to stationary or portable, single-phase or polyphase, air-cooled (natural or forced) independent or associated dry- type transformers. The windings may be encapsulated or non-encapsulated. The rated supply voltage does not exceed 1 000 V AC, and the rated supply frequency and the internal operating frequencies do not exceed 500 Hz. The core power does not exceed: - 2 kVA for single-phase transformers; - 10 kVA for polyphase transformers. The rated output does not exceed: - 40 kVA for single-phase transformers; - 200 kVA for polyphase transformers. This document is applicable to transformers without limitation of the core power and the rated output both being subject to an agreement between the purchaser and the manufacturer. Where applicable, the no-load output voltage or the rated output voltage does not exceed 1 000 V AC or 1 415 V ripple-free DC. For independent transformers, the no-load output voltage and the rated output voltage is not less than 50 V AC or 120 V ripple-free DC. This document is not applicable to external circuits and their components intended to be connected to the input terminals and output terminals of the transformers. NOTE 2 Transformers covered by this document are used only in applications where no insulation between circuits is required by the installation rules or by the end product standard. Attention is drawn to the following: - for transformers intended to be used in vehicles, on board ships, and aircraft, additional requirements (from other applicable standards, national rules, etc.); - measures to protect the enclosure and the components inside the enclosure against external influences such as fungus, vermin, termites, solar-radiation, and icing; - the different conditions for transportation, storage, and operation of the transformers; - additional requirements in accordance with other appropriate standards and national rules may be applicable to transformers intended for use in special environments. Future technological development of transformers may necessitate a need to increase the 202 upper limit of the frequencies. Until then this document may be used as a guidance document. This GROUP SAFETY PUBLICATION focusing on SAFETY guidance is primarily intended to be used as a PRODUCT SAFETY STANDARD for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products similar to those mentioned in the scope of this GROUP SAFETY PUBLICATION, in accordance with the principles laid down in IEC Guide 104 and lSO/lEC Guide 51. One of the RESPONSIBILITIES of a TC is, wherever applicable, to make use of BSPs and/or GSPs in the preparation of its publications.
Sicherheit von Transformatoren, Drosseln, Netzgeräten und entsprechenden Kombinationen – Teil 2-13: Besondere Anforderungen und Prüfungen für Spartransformatoren und Netzgeräte, die Spartransformatoren enthalten, für allgemeine Anwendungen
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et combinaisons de ces éléments - Partie 2-13: Exigences particulières et essais pour les autotransformateurs et les blocs d'alimentation qui incorporent des autotransformateurs pour applications d'ordre généra
Varnost transformatorjev, dušilk, napajalnikov in kombinacij teh elementov - 2-13. del: Posebne zahteve in preskusi za avtotransformatorje in napajalnike z avtotransformatorji za splošno uporabo
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN IEC 61558-2-13:2022
01-januar-2022
Varnost transformatorjev, dušilk, napajalnikov in kombinacij teh elementov - 2-13.
del: Posebne zahteve in preskusi za avtotransformatorje in napajalnike zavtotransformatorji za splošno uporabo
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-
13: Particular requirements and tests for auto transformers and power supply units
incorporating auto transformers for general applicationsSécurité des transformateurs, bobines d'inductance, blocs d'alimentation et
combinaisons de ces éléments - Partie 2-13: Exigences particulières et essais pour les
autotransformateurs et les blocs d'alimentation qui incorporent des autotransformateurs
pour applications d'ordre généraTa slovenski standard je istoveten z: prEN IEC 61558-2-13:2021
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
oSIST prEN IEC 61558-2-13:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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96/526/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61558-2-13 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-11-12 2022-02-04
SUPERSEDES DOCUMENTS:
96/520/RR
IEC TC 96 : TRANSFORMERS, REACTORS, POWER SUPPLY UNITS, AND COMBINATIONS THEREOF
SECRETARIAT: SECRETARY:
Germany Mr Wolfgang Reichelt
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
SC 3C,TC 14,TC 22,SC 22E,SC 34C,TC 51,TC
55,TC 61,SC 62A,TC 64,TC 66,TC 77,TC 85,TC
Other TC/SCs are requested to indicate their interest, if
97,TC 106,TC 108,TC 109,TC 111,TC 112
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel votingThe attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.TITLE:
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-13:
Particular requirements and tests for auto transformers and power supply units incorporating
auto transformers for general applicationsPROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for
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1 CONTENTS
3 FOREWORD......................................................................................................................... 3
4 INTRODUCTION ................................................................................................................... 5
5 1 Scope ............................................................................................................................ 6
6 2 Normative references .................................................................................................... 7
7 3 Terms and definitions .................................................................................................... 7
8 4 General requirements .................................................................................................... 8
9 5 General notes on tests ................................................................................................... 8
10 6 Ratings .......................................................................................................................... 8
11 7 Classification ................................................................................................................. 9
12 8 Marking and other information ........................................................................................ 9
13 9 Protection against electric shock .................................................................................. 10
14 10 Change of input voltage setting .................................................................................... 10
15 11 Output voltage and output current under load ............................................................... 10
16 12 No-load output voltage ................................................................................................. 10
17 13 Short-circuit voltage ..................................................................................................... 12
18 14 Heating ....................................................................................................................... 12
19 15 Short-circuit and overload protection ............................................................................ 12
20 16 Mechanical strength ..................................................................................................... 12
21 17 Protection against harmful ingress of dust, solid objects and moisture .......................... 12
22 18 Insulation resistance, dielectric strength and leakage current ........................................ 12
23 19 Construction ................................................................................................................ 12
24 20 Components ................................................................................................................ 13
25 21 Internal wiring .............................................................................................................. 13
26 22 Supply connection and other external flexible cable or cords ........................................ 13
27 23 Terminals for external conductors ................................................................................ 13
28 24 Provisions for protective earthing ................................................................................. 13
29 25 Screws and connections .............................................................................................. 13
30 26 Creepage distances, clearances and distances through insulation ................................ 13
31 27 Resistance to heat, fire and tracking ............................................................................ 13
32 28 Resistance to rusting ................................................................................................... 13
33 Annexes ............................................................................................................................. 14
34 Bibliography ....................................................................................................................... 15
36 Figure 101 – Windings .......................................................................................................... 8
37 Figure 102 – Tappings .......................................................................................................... 8
38 Figure 103 – Windings separated by functional isolation ........................................................ 8
40 Table 101 – Symbols indicating the kind of transformer ....................................................... 10
41 Table 102 – Output voltage ratio ......................................................................................... 11
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44 INTERNATIONAL ELECTROTECHNICAL COMMISSION
45 ____________
47 SAFETY OF TRANSFORMERS, REACTORS, POWER SUPPLY UNITS AND
48 COMBINATIONS THEREOF –
50 Part 2-13: Particular requirements and tests for auto-transformers and
51 power supply units incorporating auto-transformers for general
52 applications
55 FOREWORD
56 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
57 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
58 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
59 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
60 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
61 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
62 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
63 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
64 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
65 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
66 consensus of opinion on the relevant subjects since each technical committee has representation from all
67 interested IEC National Committees.68 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
69 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
70 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
71 misinterpretation by any end user.72 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
73 transparently to the maximum extent possible in their national and regional publications. Any divergence between
74 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
75 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
76 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
77 services carried out by independent certification bodies.78 6) All users should ensure that they have the latest edition of this publication.
79 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
80 members of its technical committees and IEC National Committees for any personal injury, property damage or
81 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
82 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
83 Publications.84 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
85 indispensable for the correct application of this publication.86 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
87 rights. IEC shall not be held responsible for identifying any or all such patent rights.
88 International standard IEC 61558-2-13 has been prepared by IEC technical committee 96:
89 Transformers, reactors, power supply units and combinations thereof.90 This third edition cancels and replaces the second edition published in 2009. This edition
91 constitutes a technical revision.92 This edition includes the following significant technical changes with respect to the previous
93 edition:94 a) Adjustment of structure and references in accordance with IEC 61558-1:2017;
95 b) Description of constructions moved to IEC 61558-1:2017;96 c) New symbol for power supply unit with linearly regulated output voltage.
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98 The text of this International Standard is based on the following documents:
Draft Report on voting
96/XXX/FDIS 96/XXX/RVD
100 Full information on the voting for its approval can be found in the report on voting indicated in
101 the above table.102 The language used for the development of this International Standard is English.
103 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
104 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
105 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
106 described in greater detail at www.iec.ch/standardsdev/publications.107 It has the status of a group safety publication in accordance with IEC Guide 104.
108 This International Standard is to be used in conjunction with IEC 61558-1:2017.
109 NOTE When “Part 1” is mentioned in this standard, it refers to IEC 61558-1:2017.
110 This document supplements or modifies the corresponding clauses in IEC 61558-1:2017, so as
111 to convert that publication into the IEC standard: Particular requirements and tests for auto-
112 transformers and power supply units incorporating auto-transformers for general applications.
113 A list of all parts in the IEC 61558 series published under the general title Safety of
114 transformers, reactors, power supply units and combinations thereof, can be found on the
115 IEC website.116 Future standards in this series will carry the new general title as cited above. Titles of existing
117 standards in this series will be updated at the time of the next edition.118 Where this document states "addition", "modification" or "replacement", the relevant text of
119 IEC 61558-1:2017 is to be adapted accordingly.120 In this document, the following print types are used:
121 – requirements proper: in roman type;
122 – test specifications: in italic type;
123 – explanatory matter: in smaller roman type:
124 In the text of this document, the words in bold are defined in Clause 3.
125 Subclauses, notes, figures and tables additional to those in IEC 61558-1:2017 are numbered
126 starting from 101; supplementary annexes are entitled AA, BB, etc.127 The committee has decided that the contents of this document will remain unchanged until the
128 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
129 the specific document. At this date, the document will be130 • reconfirmed,
131 • withdrawn,
132 • replaced by a revised edition, or
133 • amended.
134
135 NOTE Deleted
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136 INTRODUCTION
137 IEC TC 96 has a group safety function in accordance with IEC Guide 104 for transformers other
138 than those intended to supply distribution networks, in particular transformers and power supply
139 units intended to allow the application of protective measures against el...
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