EN 60034-29:2008

SLOVENSKI STANDARD
01-november-2008
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Rotating electrical machines - Part 29: Equivalent loading and superposition techniques -
Indirect testing to determine temperature rise (IEC 60034-29:2008)
Drehende elektrische Maschinen - Teil 29: Verfahren der äquivalenten Belastung und
Überlagerung – Indirekte Prüfung zur Ermittlung der Übertemperatur (IEC 60034-
29:2008)
Machines électriques tournantes - Partie 29: Techniques par charge équivalente et par
superposition - Essais indirects pour déterminer l'échauffement (CEI 60034-29:2008)
Ta slovenski standard je istoveten z: EN 60034-29:2008
ICS:
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60034-29
NORME EUROPÉENNE
July 2008
EUROPÄISCHE NORM
ICS 29.160 Supersedes EN 61986:2002

English version
Rotating electrical machines -
Part 29: Equivalent loading and superposition techniques -
Indirect testing to determine temperature rise
(IEC 60034-29:2008)
Machines électriques tournantes -  Drehende elektrische Maschinen -
Partie 29: Techniques par charge Teil 29: Verfahren der äquivalenten
équivalente et par superposition - Belastung und Überlagerung -
Essais indirects pour déterminer Indirekte Prüfung zur Ermittlung
l'échauffement der Übertemperatur
(CEI 60034-29:2008) (IEC 60034-29:2008)

This European Standard was approved by CENELEC on 2008-06-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60034-29:2008 E
Foreword
The text of document 2/1476/FDIS, future edition 1 of IEC 60034-29, prepared by IEC TC 2, Rotating
machinery, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60034-29 on 2008-06-01.
This European Standard supersedes EN 61986:2002.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-03-01
– latest date by which the national standards conflicting
(dow) 2011-06-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60034-29:2008 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60034-29:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60034-1 2004 Rotating electrical machines - EN 60034-1 2004
Part 1: Rating and performance

1) 2)
IEC 60034-2-1 - Rotating electrical machines - EN 60034-2-1 2007
Part 2-1: Standard methods for determining
losses and efficiency from tests (excluding
machines for traction vehicles)

1)
Undated reference.
2)
Valid edition at date of issue.

IEC 60034-29
Edition 1.0 2008-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rotating electrical machines –
Part 29: Equivalent loading and superposition techniques – Indirect testing to
determine temperature rise
Machines électriques tournantes –
Partie 29: Techniques par charge équivalente et par superposition – Essais
indirects pour déterminer l’échauffement

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 29.160 ISBN 2-8318-9598-7
– 2 – 60034-29 © IEC:2008
CONTENTS
FOREWORD.0H3
INTRODUCTION.1H5
1 Scope.2H6
2 Normative references .3H6
3 Symbols and units .4H6
4 General test requirements .5H7
5 Superposition method.6H8
5.1 Basic principles .7H8
5.1.1 General .8H8
5.1.2 Temperature rise .9H9
5.1.3 Estimation of temperature rise from reduced load tests .10H9
5.2 Induction motors.11H10
5.2.1 Applicable tests .12H10
5.2.2 Method of reduced voltage and rated current.13H10
5.2.3 Method of rated voltage and reduced current.14H13
5.2.4 Method combining tests at reduced voltage and reduced current .15H14
5.3 Synchronous machines .16H14
5.3.1 Method of open circuit, short circuit, zero excitation .17H14
5.3.2 Method of zero power factor and open circuit loading .18H16
5.4 DC machines.19H17
6 Equivalent load method .20H17
6.1 Principles .21H17
6.1.1 General .22H17
6.1.2 Temperature rise .23H18
6.2 Induction motors.24H18
6.2.1 Forward short-circuit test .25H18
6.2.2 Modulated frequency method.26H19
6.2.3 DC injection.27H20
6.2.4 Mixed-frequency or bi-frequency method .28H21
6.3 Synchronous machines – Zero power factor .29H24
7 Preferred methods.30H26
Annex A (informative) Example calculation .31H28

Figure 1 – Graphical superposition method for induction motors .32H12
Figure 2 – Derivation of field winding temperature rise at rated load (synchronous
machines) .33H16
Figure 3 – Test circuit for d.c.-injection equivalent load test.34H20
Figure 4 – Mixed-frequency test – Generators in series .35H21
Figure 5 – Mixed-frequency test – Series transformer .36H22
Figure 6 – Combination of torque and current in a mixed-frequency test .37H23
Figure 7 – Rotor-feeding mixed-frequency method.38H24

39H27
Table 1 – Preferred methods.

60034-29 © IEC:2008 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________
ROTATING ELECTRICAL MACHINES –

Part 29: Equivalent loading and superposition techniques –
Indirect testing to determine temperature rise

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
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,
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to 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 held responsible for identifying any or all such patent rights.
International Standard IEC 60034-29 has been prepared by IEC technical committee 2:
Rotating machinery. It cancels and replaces IEC 61986:2002 which is withdrawn.
The text of this standard is based on the following documents:
FDIS Report on voting
2/1476/FDIS 2/1491A/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 IEC 60034 series,
...