SIST EN IEC 60034-30-3:2024

SLOVENSKI STANDARD
01-oktober-2024
Električni rotacijski stroji - 30-3. del: Razredi učinkovitosti visokonapetostnih AC
motorjev (oznaka IE) (IEC 60034-30-3:2024)
Rotating electrical machines - Part 30-3: Efficiency classes of high voltage AC motors
(IE-code) (IEC 60034-30-3:2024)
Drehende elektrische Maschinen – Teil 30-3: Wirkungsgradklassen von
Hochspannungs-Wechselstrommotoren (IE-Code) (IEC 60034-30-3:2024)
Machines électriques tournantes - Partie 30-3: Classes de rendement des moteurs à
courant alternatif à haute tension (code IE) (IEC 60034-30-3:2024)
Ta slovenski standard je istoveten z: EN IEC 60034-30-3:2024
ICS:
29.160.30 Motorji Motors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60034-30-3

NORME EUROPÉENNE
EUROPÄISCHE NORM March 2024
ICS 29.160.01; 29.160.10; 29.160.30

English Version
Rotating electrical machines - Part 30-3: Efficiency classes of
high voltage AC motors (IE-code)
(IEC 60034-30-3:2024)
Machines électriques tournantes - Partie 30-3: Classes de Drehende elektrische Maschinen - Teil 30-3:
rendement des moteurs à courant alternatif à haute tension Wirkungsgradklassen von Hochspannungs-
(code IE) Wechselstrommotoren (IE-Code)
(IEC 60034-30-3:2024) (IEC 60034-30-3:2024)
This European Standard was approved by CENELEC on 2024-03-21. 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60034-30-3:2024 E

European foreword
The text of document 2/2131/CDV, future edition 1 of IEC 60034-30-3, prepared by IEC/TC 2
"Rotating machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN IEC 60034-30-3:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-12-21
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-03-21
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60034-30-3:2024 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 standard indicated:
IEC 60034-5 NOTE Approved as EN IEC 60034-5
IEC 60034-6 NOTE Approved as EN 60034-6
IEC/TS 60034-31 NOTE Approved as CLC IEC/TS 60034-31
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60034-1 2022 Rotating electrical machines - Part 1: EN IEC 60034-1 —
Rating and performance
IEC 60034-2-1 - Rotating electrical machines - Part 2-1: EN 60034-2-1 -
Standard methods for determining losses
and efficiency from tests (excluding
machines for traction vehicles)
IEC 60050-411 1996 International Electrotechnical Vocabulary - - -
Chapter 411: Rotating machinery
+ A1 2007  - -
+ A2 2021  - -
Under preparation. Stage at the time of publication: FprEN IEC 60034-1:2021.
IEC 60034-30-3 ®
Edition 1.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Rotating electrical machines –

Part 30-3: Efficiency classes of high voltage AC motors (IE-code)

Machines électriques tournantes –

Partie 30-3: Classes de rendement des moteurs à courant alternatif à haute

tension (code IE)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS  29.160.01; 29.160.10; 29.160.30 ISBN 978-2-8322-8126-0

– 2 – IEC 60034-30-3:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 9
3 Terms, definitions and symbols. 9
3.1 Terms and definitions . 9
3.2 Symbols . 10
4 Efficiency classification . 10
4.1 Determination . 10
4.1.1 General . 10
4.1.2 Auxiliary devices . 10
4.2 Efficiency rating – General procedure . 11
5 Required documentation . 18
Annex A (informative) Standardized nameplate efficiency values . 19
Annex B (informative) Proposal for technology factor for starting conditions for high
voltage cage induction motors outside the scope of this document . 20
Annex C (informative) Example for determining the nominal efficiency . 21
Bibliography . 22

Figure 1 – Envelope of the load torque during starting: Load torque during starting in %
of rated torque over speed in % of rated speed . 7

Table 1 – Maximum external moment of inertia . 8
Table 2 – Reference efficiency values η for 2p = 2, f = 50 Hz . 11
r N
Table 3 – Reference efficiency values η for 2p = 4, f = 50 Hz . 12
r N
Table 4 – Reference efficiency values η for 2p = 6, f = 50 Hz . 13
r N
Table 5 – Reference efficiency values η for 2p = 2, f = 60 Hz . 14
r N
Table 6 – Reference efficiency values η for 2p = 4, f = 60 Hz . 15
r N
Table 7 – Reference efficiency values η for 2p = 6, f = 60 Hz . 16
r N
Table 8 – Technology factor c for rated voltage U . 17
u N
Table 9 – Technology factor c for method of cooling (IC class) . 17
c
Table 10 – Technology factor c for starting conditions for motors within the scope of
s
this document . 17
Table A.1 – Standardized nameplate efficiency levels . 19
Table B.1 – Technology factor c for starting conditions for high voltage cage induction
s
motors outside the scope of this document . 20

IEC 60034-30-3:2024 © IEC 2024 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ROTATING ELECTRICAL MACHINES –

Part 30-3: Efficiency classes of high voltage AC motors (IE-code)

FOREWORD
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