EN 60034-2-1:2007

SLOVENSKI STANDARD
01-marec-2009
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Rotating electrical machines - Part 2-1: Standard methods for determining losses and
efficiency from tests (excluding machines for traction vehicles) (IEC 60034-2-1:2007)
Drehende elektrische Maschinen - Teil 2-1: Standardverfahren zur Bestimmung der
Verluste und des Wirkungsgrades aus Prüfungen (ausgenommen Maschinen für
Schienen- und Straßenfahrzeuge) (IEC 60034-2-1:2007)
Machines électriques tournantes - Partie 2-1: Méthodes normalisées pour la
détermination des pertes et du rendement à partir d'essais (à l'exclusion des machines
pour véhicules de traction) (CEI 60034-2-1:2007)
Ta slovenski standard je istoveten z: EN 60034-2-1:2007
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 60034-2-1
NORME EUROPÉENNE
November 2007
EUROPÄISCHE NORM
ICS 29.160 Partly supersedes EN 60034-2:1996 + A1:1996 + A2:1996

English version
Rotating electrical machines -
Part 2-1: Standard methods for determining losses and efficiency
from tests (excluding machines for traction vehicles)
(IEC 60034-2-1:2007)
Machines électriques tournantes -  Drehende elektrische Maschinen -
Partie 2-1: Méthodes normalisées Teil 2-1: Standardverfahren
pour la détermination des pertes
zur Bestimmung der Verluste
et du rendement à partir d'essais und des Wirkungsgrades aus Prüfungen
(à l'exclusion des machines (ausgenommen Maschinen
pour véhicules de traction) für Schienen- und Straßenfahrzeuge)
(CEI 60034-2-1:2007) (IEC 60034-2-1:2007)

This European Standard was approved by CENELEC on 2007-11-01. 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

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60034-2-1:2007 E
Foreword
The text of document 2/1443/FDIS, future edition 1 of IEC 60034-2-1, prepared by IEC TC 2, Rotating
machinery, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60034-2-1 on 2007-11-01.
This European Standard partly supersedes EN 60034-2:1996 + A1:1996 + A2:1996.
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) 2008-08-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-11-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60034-2-1:2007 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60034-2-1:2007
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
1) 2)
IEC 60027-1 – Letter symbols to be used in electrical EN 60027-1 2006
technology -
Part 1: General
1) 2)
IEC 60034-1 – Rotating electrical machines - EN 60034-1 2004
Part 1: Rating and performance

3)
IEC 60034-2A 1974 Rotating electrical machines - – –
Part 2: Methods for determining losses and
efficiency of rotating electrical machinery from
tests (excluding machines for traction
vehicles) -
First supplement: Measurement of losses by
the calorimetric method
1) 2)
IEC 60034-4 (mod) – Rotating electrical machines - EN 60034-4 1995
Part 4: Methods for determining synchronous
machine quantities from tests
1)
IEC 60034-19 – Rotating electrical machines - - -
Part 19: Specific test methods for d.c.
machines on conventional and rectifier-fed
supplies
IEC 60044 (mod) Series Instrument transformers EN 60044 Series

1) 2)
IEC 60051-1 – Direct acting indicating analogue electrical EN 60051-1 1998
measuring instruments and their
accessories -
Part 1: Definitions and general requirements
common to all parts
1) 4)
IEC 61986 – Rotating electrical machines - Equivalent EN 61986 2002
loading and super-position techniques -
Indirect testing to determine temperature rise

1)
Undated reference.
2)
Valid edition at date of issue.
3)
IEC 60034-2A:1974, which is included in EN 60034-2:1996, is retained for the time being. It will be incorporated in the future
IEC 60034-2-2.
4)
Valid edition at date of issue. A revision of IEC 61986 is under consideration for publication under reference IEC 60034-29; it is
expected to be harmonized as EN 60034-29.

IEC 60034-2-1
Edition 1.0 2007-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rotating electrical machines –
Part 2-1: Standard methods for determining losses and efficiency from tests
(excluding machines for traction vehicles)

Machines électriques tournantes –
Partie 2-1: Méthodes normalisées pour la détermination des pertes et du
rendement à partir d’essais (à l’exclusion des machines pour véhicules de
traction)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XB
CODE PRIX
ICS 29.160 ISBN 2-8318-9250-3
– 2 – 60034-2-1 © IEC:2007
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references.7
3 Terms and definitions .8
4 Symbols and abbreviated terms .13
4.1 Symbols .13
4.2 Additional subscripts.14
5 Basic requirements .15
5.1 Direct and indirect efficiency determination .15
5.2 Uncertainty .15
5.3 Preferred methods.16
5.4 Power supply.20
5.5 Instrumentation.20
5.6 Units .21
5.7 Resistance .21
6 Test methods for determination of efficiency .22
6.1 State of the machine under test and test categories .22
6.2 Excitation circuit measurements.23
6.3 Direct measurements.23
6.4 Indirect measurements .25
7 Determination of efficiency (direct current machines) .37
7.1 Determination from direct measurement.37
7.2 Determination from indirect measurement.37
8 Determination of efficiency (induction machines) .42
8.1 Determination from direct measurement.42
8.2 Determination from indirect measurement.43
9 Determination of efficiency (synchronous machines) .54
9.1 Determination from direct measurement.54
9.2 Determination from indirect measurement.55

Annex A (normative) Correction of dynamometer torque readings .61
Annex B (normative) Calculation of values for the Eh-star method .63
Annex C (informative) Types of excitation systems .66
Annex D (normative) Other test methods .67

60034-2-1 © IEC:2007 – 3 –
Figure 1 – Sketch for torque measurement test .24
Figure 2 – Sketch for dual supply back-to-back test (for synchronous machines:
I==If, f ) .24
MG M G
Figure 3 – Sketch for single supply back-to-back test, d.c. machines .26
Figure 4 – Sketch for single supply back-to-back test, synchronous machines .27
Figure 5 – Induction machine, T-model with equivalent iron loss resistor.31
Figure 6 – Sketch for single supply back-to-back, additional losses, d.c. machines .32
Figure 7 – Eh-star test circuit .35
Figure 8 – Vector diagram for obtaining current vector from reduced voltage test.46
Figure 9 – Induction machines, Reduced model for calculation .49
Figure 10 – Smoothing of the residual loss data.51
Figure 11 – Assigned allowance for additional load losses P , induction machines.53
LL
Table 1 – DC machines .17
Table 2 – Induction machines.18
Table 3 – Synchronous machines .19
Table 4 – Reference temperature .22
Table 5 – Multiplying factors for different speed ratios .42

– 4 – 60034-2-1 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ROTATING ELECTRICAL MACHINES –

Part 2-1: Standard methods for determining losses
and efficiency from tests
(excluding machines for traction vehicles)

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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (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
...