EN IEC 60034-2-3:2020
(Main)Rotating electrical machines - Part 2-3: Specific test methods for determining losses and efficiency of converter-fed AC motors
Rotating electrical machines - Part 2-3: Specific test methods for determining losses and efficiency of converter-fed AC motors
IEC 60034-2-3:2020 specifies test methods and an interpolation procedure for determining losses and efficiencies of converter-fed motors within the scope of IEC 60034-1:2017. The motor is then part of a variable frequency power drive system (PDS) as defined in IEC 61800‑9‑2:2017. Applying the approach of the comparable converter, the motor efficiency determined by use of this document is applicable for comparison of different motor designs only. The document also specifies procedures to determine motor losses at any load point (torque, speed) within the base speed range (constant torque range, constant flux range) based on determination of losses at seven standardized load points. This procedure is applicable to any variable speed AC motor (induction and synchronous) rated according to IEC 60034-1:2017 for operation on a variable frequency and variable voltage power supply.
Drehende elektrische Maschinen – Teil 2-3: Besondere Verfahren zur Bestimmung der Verluste und des Wirkungsgrades von umrichtergespeisten Wechselstrommaschinen
Machines électriques tournantes - Partie 2-3: Méthodes d'essai spécifiques pour la détermination des pertes et du rendement des moteurs à courant alternatif alimentés par convertisseur
l'IEC 60034-2-3:2020 spécifie les méthodes d’essai et la procédure d’interpolation relatives à la détermination des pertes et des rendements des moteurs alimentés par convertisseur relevant du domaine d’application de l’IEC 60034-1:2017. Le moteur est alors considéré comme faisant partie intégrante d'un système d’entraînement électrique de puissance (PDS – power drive system) à fréquence variable, comme cela est défini dans l’IEC 61800-9-2:2017. Avec l’approche du convertisseur comparable, le rendement du moteur déterminé par l’utilisation du présent document s’applique uniquement à la comparaison des différentes conceptions de moteurs. Le document spécifie également des procédures de détermination des pertes du moteur en tout point de charge (couple, vitesse) dans la plage de vitesses de base (plage de couples constants, plage de flux constants) à partir de la détermination des pertes au niveau de sept points de charge normalisés. Cette procédure s’applique à tout moteur à courant alternatif à vitesse variable (à induction et synchrone) assigné selon l’IEC 60034-1:2017 pour un fonctionnement à fréquence variable et alimenté en tension variable.
Električni rotacijski stroji - 2-3. del: Posebne preskusne metode za ugotavljanje izgub in izkoristka motorja na izmenični tok, napajanega prek pretvornikov (IEC 60034-2-3:2020)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2020
Električni rotacijski stroji - 2-3. del: Posebne preskusne metode za ugotavljanje
izgub in izkoristka motorja na izmenični tok, napajanega prek pretvornikov (IEC
60034-2-3:2020)
Rotating electrical machines - Part 2-3: Specific test methods for determining losses and
efficiency of converter-fed AC motors (IEC 60034-2-3:2020)
Drehende elektrische Maschinen - Teil 2-3: Besondere Verfahren zur Bestimmung der
Verluste und des Wirkungsgrades von umrichtergespeisten Wechselstrommaschinen
(IEC 60034-2-3:2020)
Machines électriques tournantes - Partie 2-3: Méthodes d'essai spécifiques pour la
détermination des pertes et du rendement des moteurs à courant alternatif alimentés par
convertisseur (IEC 60034-2-3:2020)
Ta slovenski standard je istoveten z: EN IEC 60034-2-3:2020
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 IEC 60034-2-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 29.160.01
English Version
Rotating electrical machines - Part 2-3: Specific test methods for
determining losses and efficiency of converter-fed AC motors
(IEC 60034-2-3:2020)
Machines électriques tournantes - Partie 2-3: Méthodes Drehende elektrische Maschinen - Teil 2-3: Besondere
d'essai spécifiques pour la détermination des pertes et du Verfahren zur Bestimmung der Verluste und des
rendement des moteurs à courant alternatif alimentés par Wirkungsgrades von umrichtergespeisten
convertisseur Wechselstrommaschinen
(IEC 60034-2-3:2020) (IEC 60034-2-3:2020)
This European Standard was approved by CENELEC on 2020-04-23. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60034-2-3:2020 E
European foreword
The text of document 2/1974/FDIS, future edition 1 of IEC 60034-2-3, prepared by IEC/TC 2 "Rotating
machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-01-23
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-23
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60034-2-3:2020 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC/TS 60034-25:2014 NOTE Harmonized as CLC/TS 60034-25:— (not modified)
IEC 61800-2:2015 NOTE Harmonized as EN 61800-2:2015 (not modified)
IEC 61800-4:2002 NOTE Harmonized as EN 61800-4:2003 (not modified)
To be published. Stage at the time of publication: CLC/prTS 60034-25:2017.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60034-1 2017 Rotating electrical machines - Part 1: Rating - -
and performance
IEC 60034-2-1 2014 Rotating electrical machines - Part 2-1: EN 60034-2-1 2014
Standard methods for determining losses
and efficiency from tests (excluding
machines for traction vehicles)
IEC 61000-2-4 2002 Electromagnetic compatibility (EMC) - Part EN 61000-2-4 2002
2-4: Environment - Compatibility levels in
industrial plants for low-frequency conducted
disturbances
IEC 61800-9-2 2017 Adjustable speed electrical power drive EN 61800-9-2 2017
systems - Part 9-2: Ecodesign for power
drive systems, motor starters, power
electronics and their driven applications -
Energy efficiency indicators for power drive
systems and motor starters
IEC 60034-2-3 ®
Edition 1.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Rotating electrical machines –
Part 2-3: Specific test methods for determining losses and efficiency of
converter-fed AC motors
Machines électriques tournantes –
Partie 2-3: Méthodes d'essai spécifiques pour la détermination des pertes
et du rendement des moteurs à courant alternatif alimentés par convertisseur
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.160.01 ISBN 978-2-8322-7842-0
– 2 – IEC 60034-2-3:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Symbols and abbreviated terms . 9
5 Basic requirements . 10
5.1 Instrumentation . 10
5.1.1 General . 10
5.1.2 Power analyser and transducers . 10
5.1.3 Mechanical output of the motor . 11
5.2 Converter set-up . 11
5.2.1 General . 11
5.2.2 Comparable converter set-up for rated voltages up to 1 kV . 11
5.2.3 Testing with converters with rated voltages above 1 kV . 12
5.2.4 Testing with other converters . 12
6 Test method for the determination of the efficiency of converter-fed motors . 12
6.1 Selection of determination method . 12
6.2 Method 2-3-A – Direct measurement of input and output . 13
6.2.1 Test set-up . 13
6.2.2 Test procedure . 13
6.2.3 Efficiency determination. 13
6.2.4 Measurement at seven standardized operating points . 14
6.3 Method 2-3-B – Summation of losses with determination of additional high
frequency loss at converter supply at no-load operation . 14
6.3.1 General . 14
6.3.2 Test set-up . 14
6.3.3 Test procedure . 14
6.3.4 Efficiency determination. 15
6.4 2-3-C – Alternate Efficiency Determination Method (AEDM) . 15
6.5 2-3-D – Determination of efficiency by calculation . 15
7 Interpolation of losses at any operating point . 16
7.1 General . 16
7.2 Interpolation procedure . 16
7.3 Analytical determination of relative losses at any operating point . 16
7.4 Additional losses due to frequency converter voltage drop . 18
7.5 Alternate operating points to determine interpolation coefficients . 18
7.6 Optional determination of interpolation error . 19
Annex A (informative) Losses of AC motors . 21
A.1 General . 21
A.2 Stator and rotor winding I R losses P (P + P ) . 21
LSR LS LR
A.3 Iron losses (P ) . 21
Lfe
A.4 Additional load losses (P ) . 22
LL
A.5 Friction and windage losses (P ) . 22
Lfw
A.6 Additional high frequency losses (P ) . 23
LHL
IEC 60034-2-3:2020 © IEC 2020 – 3 –
Annex B (informative) Exemplary determination of losses and efficiency at various
load points . 24
B.1 General . 24
B.2 Determination of the interpolation coefficients . 24
B.3 Calculation of losses and efficiency for certain operating points . 25
Bibliography . 27
Figure 1 – Standardized operating points . 17
Table 1 – Preferred test methods . 12
Table 2 – Other test methods . 13
Table 3 – Normative operating points . 17
Table 4 – Non-normative alternate operating points . 19
Table A.1 – Recommended split of windage and friction losses for IC 411 self-
ventilated motors . 22
Table B.1 – Name plate data . 24
Table B.2 – Reference values .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.