CLC/TS 60034-31:2011

Rotating electrical machines - Part 31: Selection of energy-efficient motors including variable speed applications - Application guide

IEC/TS 60034-31:2010 provides a guideline of technical aspects for the application of energy-efficient, three-phase, electric motors. It not only applies to motor manufacturers, original equipment manufacturers, end users, regulators and legislators but to all other interested parties. Is applicable to all electrical machines covered by IEC 60034-30.

Drehende elektrische Maschinen - Teil 31: Auswahl von Energiesparmotoren einschließlich Drehzahlstellantrieben - Anwendungsleitfaden

Machines électriques tournantes - Partie 31: Choix des moteurs éconergétiques incluant les applications à vitesse variable - Guide d’application

La CEI/TS 60034-31:2010 donne une ligne directrice concernant les aspects techniques relatifs à l'application des moteurs électriques éconergétiques triphasés. Elle s'applique non seulement aux fabricants de moteurs, aux fabricants originaux d'équipement, aux utilisateurs finaux, aux autorités de réglementation et aux législateurs, mais également à toutes les autres parties intéressées. Est applicable à toutes les machines électriques couvertes par la CEI 60034-30.

Električni rotacijski stroji - 31. del: Izbiranje energijsko učinkovitih motorjev vključno z motorji s spremenljivo hitrostjo - Navodilo za uporabo (IEC/TS 60034-31:2010)

Ta del IEC 60034 zagotavlja smernico za tehnične vidike uporabe energijsko učinkovitih trofaznih elektromotorjev. Ne velja le za proizvajalce motorjev, prvotne proizvajalce opreme, končne uporabnike, regulatorne organe, zakonodajalce, pač pa tudi za vse druge zainteresirane strani.
Ta tehnična specifikacija velja za vse električne stroje, ki jih zajema IEC 60034-30. Večina informacij pa velja tudi za asinhronske stroje z izhodno močjo 375 kW.

General Information

• Status: Withdrawn
• Publication Date: 24-Feb-2011
• ICS: 29.160 - Rotating machinery
• Technical Committee: CLC/TC 2 - Rotating machinery
• Drafting Committee: IEC/TC 2 - IEC_TC_2
• Ref Project: SIST-TS CLC/TS 60034-31:2011 - Rotating electrical machines - Part 31: Selection of energy-efficient motors including variable speed applications - Application guide (IEC/TS 60034-31:2010)

Relations

• Replaced By: CLC IEC/TS 60034-31:2024 - Rotating electrical machines - Part 31: Selection of energy-efficient motors including variable speed applications - Application guidelines
• Effective Date: 18-Apr-2023
• Replaced By: EN 60034-30-1:2014 - Rotating electrical machines - Part 30-1: Efficiency classes of line operated AC motors (IE code)
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2011
(OHNWULþQLURWDFLMVNLVWURMLGHO,]ELUDQMHHQHUJLMVNRXþLQNRYLWLKPRWRUMHY
YNOMXþQR]PRWRUMLVVSUHPHQOMLYRKLWURVWMR1DYRGLOR]DXSRUDER,(&76

Rotating electrical machines - Part 31: Selection of energy-efficient motors including
variable speed applications - Application guide (IEC/TS 60034-31:2010)
Drehende elektrische Maschinen - Teil 31: Auswahl von Energiesparmotoren
einschließlich Drehzahlstellantrieben - Anwendungsleitfaden (IEC/TS 60034-31:2010)
Machines électriques tournantes - Partie 31: Choix des moteurs éconergétiques incluant
les applications à vitesse variable - Guide d’application (CEI/TS 60034-31:2010)
Ta slovenski standard je istoveten z: CLC/TS 60034-31:2011
ICS:
29.160.30 Motorji Motors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CLC/TS 60034-31
SPÉCIFICATION TECHNIQUE
February 2011
TECHNISCHE SPEZIFIKATION
ICS 29.160
English version
Rotating electrical machines -
Part 31: Selection of energy-efficient motors including variable speed
applications -
Application guide
(IEC/TS 60034-31:2010)
Machines électriques tournantes -  Drehende elektrische Maschinen -
Partie 31: Choix des moteurs Teil 31: Auswahl von Energiesparmotoren
éconergétiques incluant les applications à einschließlich Drehzahlstellantrieben -
vitesse variable - Anwendungsleitfaden
Guide d’application (IEC/TS 60034-31:2010)
(CEI/TS 60034-31:2010)
This Technical Specification was approved by CENELEC on 2011-02-21.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to
make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting
national standards in force.
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, 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

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 60034-31:2011 E

Foreword
The text of the Technical Specification IEC/TS 60034-31:2010, prepared by IEC TC 2, Rotating
machinery, was submitted to the formal vote and was approved by CENELEC as CLC/TS 60034-31 on
2011-02-21.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2011-08-21
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Specification IEC/TS 60034-31:2010 was approved by CENELEC as a
Technical Specification without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60034-2-1:2007 NOTE  Harmonized as EN 60034-2-1:2007 (not modified).
IEC 60034-12 NOTE  Harmonized as EN 60034-12.
IEC/TS 60034-17 NOTE  Harmonized as CLC/TS 60034-17.
IEC/TS 60034-25 NOTE  Harmonized as CLC/TS 60034-25.
IEC 60034-26 NOTE  Harmonized as EN 60034-26.
IEC 60079-0 NOTE  Harmonized as EN 60079-0.
IEC 60300-3-3 NOTE  Harmonized as EN 60300-3-3.
IEC 61241-1 NOTE  Harmonized as EN 61241-1.
IEC 61800-2 NOTE  Harmonized as EN 61800-2.

- 3 - CLC/TS 60034-31:2011
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

IEC 60034-1 (mod) - Rotating electrical machines - EN 60034-1 -
Part 1: Rating and performance

IEC 60034-30 - Rotating electrical machines - EN 60034-30 -
Part 30: Efficiency classes of single-speed,
three-phase, cage-induction motors (IE code)

IEC/TS 60034-31 ®
Edition 1.0 2010-04
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
colour
inside
Rotating electrical machines –
Part 31: Selection of energy-efficient motors including variable speed
applications – Application guide

Machines électriques tournantes –
Partie 31: Choix des moteurs éconergétiques incluant les applications à vitesse
variable – Guide d’application

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 29.160 ISBN 978-2-88910-023-1
– 2 – TS 60034-31 © IEC:2010
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references .8
3 Terms, definitions and symbols .8
3.1 Terms and definitions .8
3.2 Symbols .8
4 General .9
5 Efficiency .10
5.1 General .10
5.2 Motor losses.11
5.3 Additional motor-losses when operated on a frequency converter.12
5.4 Motors for higher efficiency classes.12
5.5 Variations in motor losses .13
5.6 Part load efficiency.14
5.7 Efficiency testing methods.15
5.8 Power factor (see Figure 4) .16
5.9 Matching motors and variable frequency converters .17
5.10 Motors rated for 50 Hz and 60 Hz.18
5.11 Motors rated for different voltages or a voltage range.20
5.12 Motors rated for operation at frequencies other than 50/60 Hz.20
5.13 Variable frequency converter efficiency .20
5.14 Frequency converter power factor .22
6 Environment .22
6.1 Starting performance.22
6.2 Operating speed and slip.23
6.3 Effects of power quality and variation in voltage and frequency .23
6.4 Effects of voltage unbalance .23
6.5 Effects of ambient temperature.24
7 Applications.24
7.1 General .24
7.2 Energy savings by speed control (variable speed drives, VSD).24
7.3 Correct sizing of the motor .24
7.4 Continuous duty application .25
7.5 Applications involving extended periods of light load operations.25
7.6 Applications involving overhauling loads.26
7.7 Applications where load-torque is increasing with speed (pumps, fans,
compressors, etc.).26
7.8 Applications involving frequent starts and stops and/or mechanical braking.27
7.9 Applications involving explosive gas or dust atmospheres .27
8 Economy .28
8.1 Relevance to users.28
8.2 Initial purchase cost .28
8.3 Operating cost.29
8.4 Rewinding cost.30
8.5 Payback time.31

TS 60034-31 © IEC:2010 – 3 –
8.6 Life cycle cost .31
9 Maintenance.32
Annex A (informative) Super-premium efficiency (IE4) .34
Bibliography.40

Figure 1 – Overview of different areas for savings of electrical energy with drive
systems .9
Figure 2 – Typical losses of energy-efficient motors, converters and electro-
mechanical brakes.10
Figure 3 – Typical efficiency versus load curve bands for three-phase, cage-induction
motors of different output power ranges (approximately 1,1 kW, 15 kW and 150 kW).14
Figure 4 – Typical power factor versus load curve bands for three-phase, cage-
induction motors of different output power ranges (approximately 1,1 kW, 15 kW and
150 kW) .16
Figure 5 – Typical reduction of energy efficiency in %-points for 4-pole, low-voltage
motors between 50 Hz and 60 Hz when compared at the same torque (60 Hz power 20
% increased).19
Figure 6 – Typical reduction of energy efficiency in %-points for 4-pole, low-voltage
motors between 50 Hz and 60 Hz when compared at the same output power (60 Hz
torque 20 % reduced) .19
Figure 7 – Typical efficiency of indirect three-phase voltage source type converters
with a passive front-end for typical load points of pumps, fans and compressors .20
Figure 8 – Typical efficiency of indirect three-phase voltage source type converters
with a passive front-end for typical load points of constant torque.21
Figure 9 – Typical variations of current, speed, power factor and efficiency with
voltage for constant output power .23
Figure 10 – Potential energy savings by improvement of efficiency classes for motors
running at rated load.25
Figure 11 – Typical torque versus speed curves for 11 kW, 4-pole, three-phase, cage-
induction motors and load versus speed curves for speed-square-loads .26
Figure 12 – 11 kW IE3 motor operated at full load, 4 000 operating hours per year, 15
years life cy
...