IEC 60034-1:2010

Rotating electrical machines - Part 1: Rating and performance

IEC 60034-1:2010 is applicable to all rotating electrical machines except those covered by other IEC standards, for example, IEC 60349. Machines within the scope of this standard may also be subject to superseding, modifying or additional requirements in other publications, for example, IEC 60079 and IEC 60092. The changes with respect to the previous edition are as follows:
- clarification of water coolant temperature,
- recognition of IE code,
- clarification of the term "tolerances".

Machines électriques tournantes - Partie 1: Caractéristiques assignées et caractéristiques de fonctionnement

La CEI 60034-1:2010 est applicable à toutes les machines électriques tournantes à l'exception de celles qui font l'objet d'autres normes de la CEI, par exemple la CEI 60349. Les machines comprises dans le domaine d'application de la présente norme peuvent également être soumises à des exigences nouvelles, modifiées ou complémentaires figurant dans d'autres publications - par exemple, la série CEI 60079 et la CEI 60092. Les modification par rapport à l'édition précédente sont les suivantes:
- clarification portant sur la température de l'eau de refroidissement,
- reconnaissance du code IE,
- clarification du terme " tolérances ".

General Information

• Status: Published
• Publication Date: 02-Feb-2010
• ICS: 29.160.01 - Rotating machinery in general
• Technical Committee: TC 2 - Rotating machinery
• Drafting Committee: WG 12 - TC 2/WG 12
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 09-May-2017

Relations

• Revised: IEC 60034-1:2017 - Rotating electrical machines - Part 1: Rating and performance
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60034-1
®
Edition 12.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Rotating electrical machines –
Part 1: Rating and performance

Machines électriques tournantes –
Partie 1: Caractéristiques assignées et caractéristiques de fonctionnement

IEC 60034-1:2010

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC 60034-1
®
Edition 12.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Rotating electrical machines –
Part 1: Rating and performance

Machines électriques tournantes –
Partie 1: Caractéristiques assignées et caractéristiques de fonctionnement

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XB
CODE PRIX
ICS 29.160 ISBN 978-2-88910-016-3
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 60034-1 © IEC:2010
CONTENTS
FOREWORD.5
1 Scope.7
2 Normative references .7
3 Terms and definitions .8
4 Duty .13
4.1 Declaration of duty .13
4.2 Duty types .13
5 Rating .26
5.1 Assignment of rating.26
5.2 Classes of rating .26
5.3 Selection of a class of rating .27
5.4 Allocation of outputs to class of rating .27
5.5 Rated output .28
5.6 Rated voltage.28
5.7 Co-ordination of voltages and outputs .28
5.8 Machines with more than one rating .29
6 Site operating conditions .29
6.1 General .29
6.2 Altitude.29
6.3 Maximum ambient air temperature.29
6.4 Minimum ambient air temperature .29
6.5 Water coolant temperature .29
6.6 Storage and transport.30
6.7 Purity of hydrogen coolant.30
7 Electrical operating conditions.30
7.1 Electrical supply .30
7.2 Form and symmetry of voltages and currents .30
7.3 Voltage and frequency variations during operation .33
7.4 Three-phase a.c. machines operating on unearthed systems.35
7.5 Voltage (peak and gradient) withstand levels.35
8 Thermal performance and tests .35
8.1 Thermal class.35
8.2 Reference coolant .35
8.3 Conditions for thermal tests.36
8.4 Temperature rise of a part of a machine .37
8.5 Methods of measurement of temperature.37
8.6 Determination of winding temperature .38
8.7 Duration of thermal tests .41
8.8 Determination of the thermal equivalent time constant for machines of duty
type S9.41
8.9 Measurement of bearing temperature .42
8.10 Limits of temperature and of temperature rise .42
9 Other performance and tests .50
9.1 Routine tests .50
9.2 Withstand voltage test .51

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60034-1 © IEC:2010 – 3 –
9.3 Occasional excess current.53
9.4 Momentary excess torque for motors.54
9.5 Pull-up torque.55
9.6 Safe operating speed of cage induction motors .55
9.7 Overspeed .56
9.8 Short-circuit current for synchronous machines .57
9.9 Short-circuit withstand test for synchronous machines.57
9.10 Commutation test for commutator machines .58
9.11 Total harmonic distortion (THD) for synchronous machines .58
10 Rating plates .58
10.1 General .58
10.2 Marking .59
11 Miscellaneous requirements .60
11.1 Protective earthing of machines .60
11.2 Shaft-end key(s).62
12 Tolerances .62
12.1 General .62
12.2 Tolerances on values of quantities .62
13 Electromagnetic compatibility (EMC) .64
13.1 General .64
13.2 Immunity .64
13.3 Emission .65
13.4 Immunity tests.65
13.5 Emission tests.65
14 Safety.65
Annex A (informative) Guidance for the application of duty type S10 and for
establishing the value of relative thermal life expectancy TL .67
Annex B (informative) Electromagnetic compatibility (EMC) limits .68
Bibliography.69

Figure 1 – Continuous running duty – Duty type S1.14
Figure 2 – Short-time duty – Duty type S2.15
Figure 3 – Intermittent periodic duty – Duty type S3.16
Figure 4 – Intermittent periodic duty with starting – Duty type S4 .17
Figure 5 – Intermittent periodic duty with electric braking – Duty type S5 .18
Figure 6 – Continuous operation periodic duty – Duty type S6 .19
Figure 7 – Continuous operation periodic duty with electric braking – Duty type S7 .20
Figure 8 – Continuous operation periodic duty with related load/speed changes – Duty
type S8 .22
Figure 9 – Duty with non-periodic load and speed variations – Duty type S9 .23
Figure 10 – Duty with discrete constant loads – Duty type S10 .25
Figure 11 – Voltage and frequency limits for generators.34
Figure 12 – Voltage and frequency limits for motors.34

Table 1 – Preferred voltage ratings .29
Table 2 − Unbalanced operating conditions for synchronous machines .32

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– 4 – 60034-1 © IEC:2010
Table 3 − Primary functions of machines.34
Table 4 – Reference coolant (see also Table 10) .36
Table 5 – Time interval .40
Table 6 – Measuring points.42
Table 7 – Limits of temperature rise of windings indirectly cooled by air .44
Table 8 − Limits of temperature rise of windings indirectly cooled by hydrogen .45
Table 9 – Adjustments to limits of temperature rise at the operating site of indirect
cooled windings to take account of non-reference operating conditions and ratings .45
Table 10 – Assumed maximum ambient temperature .47
Table 11 – Adjusted limits of temperature rise at the test site (Δθ ) for windings
T
indirectly cooled by air to take account of test site operating conditions .48
Table 12 – Limits of temperature of directly cooled windings and their coolants .49
Table 13 – Adjustments to limits of temperature at the operating site for windings
directly cooled by air or hydrogen to take account of non-reference operating
conditions and ratings.50
Table 14 – Adjusted limits of temperature at the test site θ for windings directly cooled
T
by air to take account of test site operating conditions .50
Table 15 – Minimum schedule of routine tests .51
Table 16 – Withstand voltage tests .52
−1
Table 17 – Maximum safe operating speed (min ) of three-phase single-speed cage
induction motors for voltages up to and including 1 000 V.56
Table 18 – Overspeeds.57
Table 19 – Cross-sectional areas of earthing conductors .62
Table 20 – Schedule of tolerances on values of quantities .63
Table B.1 – Electromagnetic emission limits for machines without brushes .68
Table B.2 – Electromagnetic emission limits for machines with brushes.68

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60034-1 © IEC:2010 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ROTATING ELECTRICAL MACHINES –

Part 1: Rating and performance

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
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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
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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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
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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) 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 60034-1 has been prepared by IEC technical committee 2:
Rotating machinery.
This twelfth edition cancels and replaces the eleventh edition published in 2004. It constitutes
a technical revision.
Major changes were not introduced in this edition. The corrections, clarifications and
improvements include:

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– 6 – 60034-1 © IEC:2010

Clause or
Change
subclause
6.5 Clarification of water coolant temperature
8.10.2 Minor change to Table 12
10.2 Recognition of IE code, of open circuit voltage of synchronous machines
excited by permanent magnets and of maximum operation speed of machines

specifically designed for converter supply
12
Clarification of the term ‘tolerances’
The text of this standard is based on the following documents:
FDIS Report on voting
2/1579/FDIS 2/1587/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 the IEC 60034 series, published under the general title Rotating electrical
machines, can be found on the IEC website.
NOTE A table of cross-references of all IEC TC 2 publications can be found in the IEC TC 2 dashboard on the
IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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60034-1 © IEC:2010 – 7 –
ROTATING ELECTRICAL MACHINES –

Part 1: Rating and performance



1 Scope
This part of IEC 60034 is applicable to all rotating electrical machines except those covered
1)
by other IEC standards, for example, IEC 60349 [10] .
Machines within the scope of this standard may also be subject to superseding, modifying or
additional requirements in other publications, for example, IEC 60079 [8] and IEC 60092 [9].
NOTE If particular clauses of this standard are modified to meet special applications, for example machines
subject to radioactivity or machines for aerospace, all other clauses apply insofar as they are compatible.
2 Normative references
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.
IEC 60027-1, Letter symbols to be used in electrical technology − Part 1: General
IEC 60027-4, Letter symbols to be used in electrical technology − Part 4: Rotating electrical
machines
IEC 60034-2 (all parts), Rotating electrical machines − Part 2: Standard methods for
determining losses and efficiency from tests (excluding machines for traction vehicles)
IEC 60034-3, Rotating electrical machines − Part 3: Specific requirements for synchronous
generators driven by steam turbines or combustion gas turbines
IEC 60034-5, Rotating electrical machines − Part 5: Degrees of protection provided by the
integral design of rotating electrical machines (IP code) – Classification
IEC 60034-8, Rotating electrical machines – Part 8: Terminal markings and direction of
rotation
IEC 60034-12, Rotating electrical machines − Part 12: Starting performance of single-speed
three-phase cage induction motors
IEC 60034-15, Rotating electrical machines − Part 15: Impulse voltage withstand levels of
form-wound stator coils for rotating a.c. machines
IEC 60034-17, Rotating electrical machines − Part 17: Cage induction motors when fed from
converters – Application guide
IEC 60034-18 (all parts), Rotating electrical machines – Part 18: Functional evaluation of
insulating systems
___________
1)
Figures in square brackets refer to the Bibliography.

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– 8 – 60034-1 © IEC:2010
IEC 60034-30, Rotating electrical machines – Part 30: Efficiency classes of single-speed,
three-phase, cage-induction motors (IE-code)
IEC 60038, IEC standard voltages
IEC 60050-411:1996, International Electrotechnical Vocabulary (IEV) − Chapter 411: Rotating
machines
IEC 60060-1, High-voltage test techniques – Part 1: General definitions and test requirements
IEC 60072 (all parts), Dimensions and output series for rotating electrical machines
IEC 60085, Electrical insulation – Thermal evaluation and designation
IEC 60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General
requirements
IEC 60204-11, Safety of machinery – Electrical equipment of machines – Part 11:
Requirements for HV equipment for voltages above 1 000 V a.c. or 1 500 V d.c. and not
exceeding 36 kV
IEC 60335-1, Household and similar electrical appliances – Safety – Part 1: General
requirements
IEC 60445, Basic and safety principles for man-machine interface, marking and identification
– Identification of equipment terminals and conductor terminals
IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
2)
IEC 60971, Semiconductor convertors. Identification code for convertor connections
IEC 61293, Marking of electrical equipment with ratings related to electrical supply – Safety
requirements
CISPR 11, Industrial, scientific and medical equipment – Radiofrequency disturbance
characteristics – Limits and methods of measurement
CISPR 14 (all parts), Electromagnetic compatibility – Requirements for household appliances,
electric tools and similar apparatus
CISPR 16 (all parts), Specification for radio disturbance and immunity measuring apparatus
and methods
3 Terms and definitions
For the purposes of this document, the terms and definitions in IEC 60050-411, some of which
are repeated here for convenience, and the following terms and definitions apply.
NOTE 1 For definitions concerning cooling and coolants, other than those in 3.17 to 3.22, reference should be
made to IEC 60034-6 [1].
___________
2)
IEC 60971 was withdrawn (and not replaced) in 2004.

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60034-1 © IEC:2010 – 9 –
NOTE 2 For the purposes of this standard, the term ‘agreement’ means ‘agreement between the manufacturer
and purchaser’.
3.1
rated value
a quantity value assigned, generally by a manufacturer, for a specified operating condition of
a machine
[IEV 411-51-23]
NOTE The rated voltage or voltage range is the rated voltage or voltage range between lines at the terminals.
3.2
rating
the set of rated values and operating conditions
[IEV 411-51-24]
3.3
rated output
the value of the output included in the rating
3.4
load
all the values of the electrical and mechanical quantities that signify the demand made on a
rotating machine by an electrical circuit or a mechanism at a given instant
[IEV 411-51-01]
3.5
no-load (operation)
the state of a machine rotating with zero output power (but under otherwise normal operating
conditions)
[IEV 411-51-02, modified]
3.6
full load
the load which causes a machine to operate at its rating
[IEV 411-51-10]
3.7
full load value
a quantity value for a machine operating
...