EN 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 specifies efficiency classes for fixed-speed three-phase high-voltage cage induction motors in accordance with IEC 60034-1 that - have a rated voltage exceeding 1 000 V, but not exceeding 11 kV; - have a rated power from 200 kW to 2 000 kW; This document provides the global harmonization of energy-efficiency classes of three-phase cage induction motors with rated voltage above 1 000 V that are rated for direct online starting and fixed-speed operation at a 50 Hz or 60 Hz supply with sinusoidal voltage.

Drehende elektrische Maschinen - Teil 30-3: Wirkungsgradklassen von Hochspannungs-Wechselstrommotoren (IE-Code)

Machines électriques tournantes - Partie 30-3: Classes de rendement des moteurs à courant alternatif à haute tension (code IE)

IEC 60034-30-3:2024 spécifie les classes de rendement pour les moteurs triphasés à induction à cage à haute tension et à vitesse fixe conformément à l'IEC 60034-1, qui - ont une tension assignée supérieure à 1 000 V, mais qui ne dépasse pas 11 kV; - ont une puissance assignée comprise entre 200 kW et 2 000 kW; Le présent document prévoit l'harmonisation globale des classes de rendement énergétique des moteurs triphasés à induction à cage dont la tension assignée est supérieure à 1 000 V, qui sont assignés pour démarrer directement sur réseau et fonctionner à vitesse fixe sur une alimentation de 50 Hz ou 60 Hz avec une tension sinusoïdale.

Električni rotacijski stroji - 30-3. del: Razredi učinkovitosti visokonapetostnih AC motorjev (oznaka IE) (IEC 60034-30-3:2024)

Standard IEC 60034-30-3:2024 določa razrede učinkovitosti za trifazne visokonapetostne indukcijske motorje s stalno hitrostjo zaprtega tipa v skladu s standardom IEC 60034-1 z
– nazivno napetostjo več kot 1000 V, vendar ne več kot 11 kV;
– nazivno močjo od 200 kW do 2000 kW.
Ta dokument zagotavlja globalno uskladitev razredov energetske učinkovitosti trifaznih indukcijskih motorjev zaprtega tipa z nazivno napetostjo več kot 1000 V, naznačenih za neposredni zagon v omrežju in delovanje s stalno hitrostjo pri napajalni frekvenci 50 Hz ali 60 Hz s sinusoidno napetostjo.

General Information

• Status: Published
• Publication Date: 21-Mar-2024
• ICS: 29.160 - Rotating machinery
• ICS: 29.160.01 - Rotating machinery in general
• ICS: 29.160.10 - Components for rotating machines
• ICS: 29.160.30 - Motors
• Technical Committee: CLC/TC 2 - Rotating machinery
• Drafting Committee: IEC/TC 2 - IEC_TC_2
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 22-Mar-2024
• Completion Date: 22-Mar-2024
• Ref Project: SIST EN 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)

Standards Content (Sample)

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
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 IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not r
...