CLC/TS 60034-25:2005

Rotating electrical machines - Part 25: Guide for the design and performance of cage induction motors specifically designed for converter supply

Describes the design features and performance characteristics of polyphase cage induction motors specifically designed for use on voltage source converter supplies up to 1 000 V. Also specifies the interface parameters and interactions between the motor and the converter including installation guidance as part of a power drive system.

Drehende elektrische Maschinen - Teil 25: Leitfaden für den Entwurf und das Betriebsverhalten von Induktionsmotoren mit Käfigläufer, die speziell für Umrichterbetrieb bemessen sind

Rotacijski električni stroji – 25. del: Smernice za konstrukcijo in karakteristike asinhronskih motorjev s kratkostično kletko, posebej narejenih za napajanje s pretvornikom

General Information

• Status: Withdrawn
• Publication Date: 25-Oct-2005
• ICS: 29.160 - Rotating machinery
• Technical Committee: CLC/TC 2 - Rotating machinery
• Drafting Committee: IEC/TC 2 - IEC_TC_2
• Parallel Committee: IEC/TC 2 - IEC_TC_2
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 18-Jul-2008
• Completion Date: 18-Jul-2008
• Ref Project: SIST-TS CLC/TS 60034-25:2006 - Rotating electrical machines -- Part 25: Guide for the design and performance of cage induction motors specifically designed for converter supply

Relations

• Replaced By: CLC/TS 60034-25:2008 - Rotating electrical machines - Part 25: Guidance for the design and performance of a.c. motors specifically designed for converter supply
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI SIST-TS CLC/TS 60034-25:2006

STANDARD
januar 2006
Rotacijski električni stroji – 25. del: Smernice za konstrukcijo in karakteristike
asinhronskih motorjev s kratkostično kletko, posebej narejenih za napajanje s
pretvornikom
(istoveten CLC/TS 60034-25:2005)
Rotating electrical machines – Part 25: Guide for the design and performance of
cage induction motors specifically designed for converter supply
ICS 29.160.30 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

TECHNICAL SPECIFICATION CLC/TS 60034-25
SPECIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION October 2005

ICS 29.160
English version
Rotating electrical machines
Part 25: Guide for the design and performance
of cage induction motors
specifically designed for converter supply

Drehende elektrische Maschinen
Teil 25: Leitfaden für den Entwurf
und das Betriebsverhalten von
Induktionsmotoren mit Käfigläufer,
die speziell für Umrichterbetrieb
bemessen sind
This Technical Specification was approved by CENELEC on 2005-06-04.

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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. CLC/TS 60034-25:2005 E

Foreword
The text of the Technical Specification IEC/TS 60034-25:2004, prepared by IEC TC 2, Rotating
machinery, was submitted to the formal vote and was approved by CENELEC as CLC/TS 60034-25
on 2005-06-04.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2005-12-04
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Specification IEC/TS 60034-25:2004 was approved by CENELEC as a
Technical Specification without any modification.
__________
- 3 - CLC/TS 60034-25:2005
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 Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1) 2)
IEC 60034-1 - Rotating electrical machines EN 60034-1 2004
Part 1: Rating and performance

IEC 60034-2 1972 Part 2: Methods for determining losses
+ IEC 60034-2A 1974 and efficiency of rotating electrical EN 60034-2 1996
machinery from tests (excluding
machines for traction vehicles)
A1 1995 A1 1996
A2 1996 A2 1996
1) 2)
IEC 60034-6 - Part 6: Methods of cooling (IC Code) EN 60034-6 1993

1) 2)
IEC 60034-9 - Part 9: Noise limits EN 60034-9 2005
(mod)
1) 2)
IEC 60034-14 - Part 14: Mechanical vibration of certain EN 60034-14 2004
machines with shaft heights 56 mm and
higher - Measurement, evaluation and
limits of vibration severity
1) 2)
IEC/TS 60034-17 - Part 17: Cage induction motors when fed CLC/TS 60034-17 2004
from converters - Application guide

1) 2)
IEC 61800-2 - Adjustable speed electrical power drive EN 61800-2 1998
systems
Part 2: General requirements - Rating
specifications for low voltage adjustable
frequency a.c. power drive systems

1) 2)
IEC 61800-3 - Part 3: EMC requirements and specific EN 61800-3 2004
test methods
1) 2)
IEC 61800-5-1 - Part 5-1: Safety requirements - Electrical, EN 61800-5-1 2003
thermal and energy
1)
Undated reference.
2)
Valid edition at date of issue.

TECHNICAL IEC
SPECIFICATION TS 60034-25
First edition
2004-04
Rotating electrical machines –
Part 25:
Guide for the design and performance
of cage induction motors specifically designed
for converter supply
 IEC 2004  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale X

International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – TS 60034-25  IEC:2004(E)

CONTENTS
FOREWORD.5
INTRODUCTION.7

1 Scope.8
2 Normative references .8
3 Terms and definitions .9
4 System characteristics.10
4.1 General .10
4.2 System information.10
4.3 Torque/speed considerations.10
4.3.1 General .10
4.3.2 Torque/speed capability.11
4.3.3 Voltage/speed characteristics .12
4.3.4 Limiting factors on torque/speed capability .12
4.3.5 Resonant speed bands .13
4.3.6 Duty cycles.13
4.4 Converter control types .13
4.4.1 General .13
4.4.2 Converter type considerations .14
4.5 Converter output voltage generation.15
4.5.1 Pulse Width Modulation (PWM) .15
4.5.2 Hysteresis (sliding mode) .15
4.5.3 Influence of switching frequency.16
4.5.4 Multi-level converters .17
4.6 Motor requirements .17
5 Losses and their effects.19
5.1 General .19
5.2 Losses in motors supplied from voltage-source converters .19
5.3 Location of the extra losses and ways to reduce them .20
5.4 Converter features to reduce the motor losses .20
5.5 Temperature and life expectancy.21
5.6 Determination of motor efficiency .21
6 Noise, vibration and oscillating torques .21
6.1 Noise and vibration in an induction motor supplied from a converter.21
6.1.1 General .21
6.1.2 Changes in noise emission due to changes in speed .22
6.1.3 Magnetically excited noise.23
6.1.4 Torsional oscillation.23
6.2 Sound power level determination and limits .24
6.2.1 Methods of measurement .24
6.2.2 Test conditions .24
6.2.3 Sound power level limits .24
6.3 Vibration level determination and limits .24
6.3.1 Method of measurement .24
6.3.2 Test conditions .25
6.3.3 Vibration level limits .25

TS 60034-25  IEC:2004(E) – 3 –
7 Motor insulation electrical stresses .25
7.1 General .25
7.2 Causes.25
7.3 Winding electrical stress.27
7.4 Insulation stress limitation .29
7.5 Responsibilities .29
7.6 Converter characteristics.30
7.7 Methods of reduction of voltage stress .30
7.8 Motor choice .31
8 Bearing currents .31
8.1 Sources of bearing currents in converter-fed motors.31
8.1.1 General .31
8.1.2 Magnetic asymmetry.31
8.1.3 Electrostatic buildup .32
8.1.4 High frequency voltages .32
8.2 Generation of high frequency bearing currents .32
8.2.1 General .32
8.2.2 Circulating current .33
8.2.3 Shaft grounding current .33
8.2.4 Capacitive discharge current .33
8.3 Common-mode circuit.33
8.3.1 General .33
8.3.2 System common-mode current flow .33
8.4 Stray capacitances .34
8.4.1 General .34
8.4.2 Major component of capacitance .34
8.4.3 Other capacitances.35
8.5 Consequences of excessive bearing currents .35
8.6 Preventing high frequency bearing current damage .36
8.6.1 Basic approaches .36
8.6.2 Other preventive measures.36
9 Installation.38
9.1 Grounding, bonding and cabling .
...