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

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 Drehstrommotoren, die speziell für Umrichterbetrieb bemessen sind

Machines électriques tournantes - Partie 25: Guide pour la conception et les performances des moteurs c.a. spécialement conçus pour une alimentation par convertisseurs

Električni rotacijski stroji - 25. del: Smernice za konstrukcijo in karakteristike asinhronskih motorjev s kratkostično kletko, posebej narejenih za napajanje s pretvornikom (IEC/TS 60034-25:2007)

General Information

• Status: Withdrawn
• Publication Date: 11-Dec-2008
• 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
• Ref Project: SIST-TS CLC/TS 60034-25:2009 - Rotating electrical machines - Part 25: Guide for the design and performance of a.c. motors specifically designed for converter supply (IEC/TS 60034-25:2007)

Relations

• Replaces: 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
• Effective Date: 28-Jan-2023
• Replaced By: CLC IEC/TS 60034-25:2024 - Rotating electrical machines - Part 25: AC electrical machines used in power drive systems - Application guide
• Effective Date: 18-Apr-2023

Standards Content (Sample)

SLOVENSKI STANDARD
02-februar-2009
1DGRPHãþD
SIST-TS CLC/TS 60034-25:2006
(OHNWULþQLURWDFLMVNLVWURMLGHO6PHUQLFH]DNRQVWUXNFLMRLQNDUDNWHULVWLNH
DVLQKURQVNLKPRWRUMHYVNUDWNRVWLþQRNOHWNRSRVHEHMQDUHMHQLK]DQDSDMDQMHV
SUHWYRUQLNRP,(&76
Rotating electrical machines - Part 25: Guide for the design and performance of a.c.
motors specifically designed for converter supply (IEC/TS 60034-25:2007)
Drehende elektrische Maschinen - Teil 25: Leitfaden für den Entwurf und das
Betriebsverhalten von Induktionsmotoren mit Käfigläufer, die speziell für
Umrichterbetrieb bemessen sind (IEC/TS 60034-25:2007)
Machines électriques tournantes - Partie 25: Guide pour la conception et les
performances des moteurs c.a. spécialement conçus pour une alimentation par
convertisseurs (CEI/TS 60034-25:2007)
Ta slovenski standard je istoveten z: CLC/TS 60034-25:2008
ICS:
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CLC/TS 60034-25
SPÉCIFICATION TECHNIQUE
December 2008
TECHNISCHE SPEZIFIKATION
ICS 29.160 Supersedes CLC/TS 60034-25:2005

English version
Rotating electrical machines -
Part 25: Guidance for the design and performance of a.c. motors
specifically designed for converter supply
(IEC/TS 60034-25:2007)
This Technical Specification was approved by CENELEC on 2008-07-18.

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, 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

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

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 60034-25:2008 E

Foreword
The text of the Technical Specification IEC/TS 60034-25:2007, prepared by IEC TC 2, Rotating
machinery, was circulated for voting in accordance with the Internal Regulations, Part 2,
Subclause 11.3.3.3 and was approved by CENELEC as CLC/TS 60034-25 on 2008-07-18.
This Technical Specification supersedes CLC/TS 60034-25:2005.
CLC/TS 60034-25:2005:
– replacement of the original introduction by a shorter introduction;
– extension of the scope to include all converter-fed motors, not just LV-induction motors;
– minor changes throughout Clauses 4 to 9;
– addition of Subclauses 4.3.4, 4.3.5, 5.4, 6.2.1, 8.6.3, 8.7 and 8.8, and Figure 7;
– inclusion of Subclauses 4.4 and 4.5 in Annex A;
– expansion of original Annex A which becomes Annex B;
– re-drafting of Clause 5;
– upgrading of 6.1.4 to 6.3;
– removal of noise limits from normative text;
– addition of reference to EN 60034-9;
– addition of Annex C.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2009-01-18
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Specification IEC/TS 60034-25:2007 was approved by CENELEC as a
Technical Specification without any modification.
__________
- 3 - CLC/TS 60034-25:2008
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

1) 2)
IEC 60034-1 - Rotating electrical machines - EN 60034-1 2004
Part 1: Rating and performance

1) 3) 2)
IEC 60034-2 - Rotating electrical machines - EN 60034-2 1996
Part 2: Methods for determining losses and
efficiency of rotating electrical machinery from
tests (excluding machines for traction
vehicles)
1) 2)
IEC 60034-6 - Rotating electrical machines - EN 60034-6 1993
Part 6: Methods of cooling (IC Code)

1) 2)
IEC 60034-9 (mod) - Rotating electrical machines - EN 60034-9 2005
Part 9: Noise limits
1) 2)
IEC 60034-14 - Rotating electrical machines - EN 60034-14 2004
Part 14: Mechanical vibration of certain
machines with shaft heights 56 mm and
higher - Measurement, evaluation and limits of
vibration severity
IEC/TS 60034-17 2006 Rotating electrical machines - - -
Part 17: Cage induction motors when fed from
converters - Application guide

1)
IEC/TR 61000-5-1 - Electromagnetic compatibility (EMC) - - -
Part 5: Installation and mitigation guidelines -
Section 1: General considerations

1)
IEC 61000-5-2 - Electromagnetic compatibility (EMC) - - -
Part 5: Installation and mitigation guidelines -
Section 2: Earthing and cabling

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 - Adjustable speed electrical power drive EN 61800-3 2004
systems -
Part 3: EMC requirements and specific test
methods
1)
Undated reference.
2)
Valid edition at date of issue.
3)
EN 60034-2 includes supplement A:1974 to IEC 60034-2:1972. It is partly superseded by EN 60034-2-1:2007, which is based
on IEC 60034-2-1:2007
Publication Year Title EN/HD Year

1) 2)
IEC 61800-5-1 - Adjustable speed electrical power drive EN 61800-5-1 2007
systems -
Part 5-1: Safety requirements - Electrical,
thermal and energy
1) 2)
IEC 61800-5-2 - Adjustable speed electrical power drive EN 61800-5-2 2007
systems -
Part 5-2: Safety requirements - Functional

TECHNICAL IEC
SPECIFICATION TS 60034-25
Second edition
2007-03
Rotating electrical machines –
Part 25:
Guidance for the design and performance of a.c.
motors specifically designed for converter supply
Reference number
IEC/TS 60034-25:2007(E)
– 2 – TS 60034-25 © IEC:2007(E)
CONTENTS
FOREWORD.6
INTRODUCTION.8
1 Scope.9
2 Normative references .9
3 Terms and definitions .10
4 System characteristics.11
4.1 General .11
4.2 System information.11
4.3 Torque/speed considerations.12
4.4 Motor requirements .16
5 Losses and their effects (for induction motors fed from U-converters).18
5.1 General .18
5.2 Location of the additional losses due to converter supply and ways to
reduce them .18
5.3 Converter features to reduce the motor losses .18
5.4 Use of filters to reduce additional motor losses due to converter supply .20
5.5 Temperature and life expectancy.20
5.6 Determination of motor efficiency .21
6 Noise, vibration and torsional oscillation.21
6.1 Noise .21
6.2 Vibration (excluding torsional oscillation).24
6.3 Torsional oscillation .25
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 .31
7.8 Motor choice .31
8 Bearing currents .32
8.1 Sources of bearing currents in converter-fed motors.32
8.2 Generation of high-frequency bearing currents .32
8.3 Common mode circuit.34
8.4 Stray capacitances .34
8.5 Consequences of excessive bearing currents .36
8.6 Preventing high-frequency bearing current damage.36
8.7 Additional considerations for motors fed by high voltage U-converters .38
8.8 Bearing current protection for motors fed by high-voltage current-source
converters (I-converters) .39
9 Installation.39
9.1 Earthing, bonding and cabling .39
9.2 Reactors and filters .45
9.3 Integral motors (integrated motor and drive modules).46

TS 60034-25 © IEC:2007(E) – 3 –
10 Additional considerations for permanent magnet (PM) synchronous motors fed by
U-converters.47
10.1 System characteristics .47
10.2 Losses and their effects .47
10.3 Noise, vibration and torsional oscillation.47
10.4 Motor insulation electrical stresses.47
10.5 Bearing currents.48
10.6 Particular aspects of permanent magnets .48
11 Additional considerations for cage induction motors fed by high voltage U-
converters .48
11.1 General .48
11.2 System characteristics .48
11.3 Losses and their effects .50
11.4 Noise, vibration and torsional oscillation.50
11.5 Motor insulation electrical stresses.51
11.6 Bearing currents.53
12 Additional cons
...