IEC TS 60349-3:2010

Electric traction - Rotating electrical machines for rail and road vehicles - Part 3: Determination of the total losses of converter-fed alternating current motors by summation of the component losses

IEC/TS 60349-3:2010 applies to machines complying with IEC 60349-2. The losses supplied at the fundamental frequency cannot be measured directly and so are derived from measurement of the fundamental frequency load current and the fundamental frequency no-load power input. The main technical changes with regard to the previous edition are corrections in some formulas in 3.2.1.2 and in Table A.2.

Traction électrique - Machines électriques tournantes des véhicules ferroviaires et routiers - Partie 3: Détermination des pertes totales des moteurs à courant alternatif alimentés par convertisseur par sommation des pertes élémentaires

La CEI/TS 60349-3:2010 s'applique aux machines satisfaisant à la CEI 60349-2. Les pertes fournies à la fréquence fondamentale ne peuvent pas être mesurées directement et par suite elles sont déduites des mesures du courant en charge et de la puissance d'entrée à vide à la fréquence fondamentale. Les principaux changements techniques par rapport à l'édition précédente sont des corrections dans certaines formules de 3.2.1.2 et dans le Tableau A.2.

General Information

• Status: Published
• Publication Date: 24-Mar-2010
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Drafting Committee: MT 30 - TC 9/MT 30
• Current Stage: PPUB - Publication issued
• Start Date: 31-May-2010
• Completion Date: 25-Mar-2010

Standards Content (Sample)

IEC/TS 60349-3 ®
Edition 2.0 2010-03
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Electric traction – Rotating electrical machines for rail and road vehicles –
Part 3: Determination of the total losses of converter-fed alternating current
motors by summation of the component losses

Traction électrique – Machines électriques tournantes des véhicules ferroviaires
et routiers –
Partie 3: Détermination des pertes totales des moteurs à courant alternatif
alimentés par convertisseur par sommation des pertes élémentaires

IEC/TS 60349-3:2010
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IEC/TS 60349-3 ®
Edition 2.0 2010-03
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
Electric traction – Rotating electrical machines for rail and road vehicles –
Part 3: Determination of the total losses of converter-fed alternating current
motors by summation of the component losses

Traction électrique – Machines électriques tournantes des véhicules ferroviaires
et routiers –
Partie 3: Détermination des pertes totales des moteurs à courant alternatif
alimentés par convertisseur par sommation des pertes élémentaires

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
Q
CODE PRIX
ICS 45.060 ISBN 978-2-88910-173-3
– 2 – TS 60349-3 © IEC:2010
CONTENTS
FOREWORD.3
1 Scope and object.5
2 Instrumentation .5
3 Summation of losses .6
3.1 The total losses are the sum of the following component losses. .6
3.2 Determination of the component losses .7
3.2.1 Asynchronous motors .7
3.2.2 Synchronous motors.8
Annex A (informative) The equivalent circuit of an asynchronous motor .10
Annex B (informative) Stray load loss .16

Figure 1 − Derivation of equivalent 50 Hz rated power input.8
Figure A.1 − Equivalent circuit of an asynchronous motor on no-load.10
Figure A.2 − Equivalent circuit of an asynchronous motor on load.13
Figure A.3 − Graphical method for determining friction and windage loss.15

Table 1 − Accuracy of external attenuators .6
Table 2 − Overall accuracy of power measurement .6
Table A.1 − Determination of parameters of the equivalent circuit .11
Table A.2 – Definition of parameters .14

TS 60349-3 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC TRACTION –
ROTATING ELECTRICAL MACHINES
FOR RAIL AND ROAD VEHICLES –
Part 3: Determination of the total losses
of converter-fed alternating current motors
by summation of the component losses

FOREWORD
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whether they can be transformed into International Standards.

– 4 – TS 60349-3 © IEC:2010
IEC 60349-3, which is a technical specification, has been prepared by IEC technical
committee 9: Electrical equipment and systems for railways.
This second edition cancels and replaces the first edition, issued in 1995, and constitutes a
technical revision.
The main technical changes with regard to the previous edition are as follows:
– Omissions in some formulas in 3.2.1.2 and Table A.2 were fixed.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
9/1267/DTS 9/1342/RVC
Full information on the voting for the approval of this technical specification 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.
The committee has decided that the contents of this publication will remain unchanged until
the stability 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 be
• transformed into an International standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
TS 60349-3 © IEC:2010 – 5 –
ELECTRIC TRACTION –
ROTATING ELECTRICAL MACHINES
FOR RAIL AND ROAD VEHICLES –
Part 3: Determination of the total losses
of converter-fed alternating current motors
by summation of the component losses

1 Scope and object
This technical specification applies to machines complying with IEC 60349-2.
The total losses of a converter-fed motor may be determined by summation of the component
losses derived from no-load and load tests. The total input power is the sum of the power at
the fundamental frequency and at all other frequencies. In all practical cases the latter input
includes the losses resulting from the voltage and current harmonics in the converter supply
by using suitable instrumentation it can be derived from measurement of the total and
fundamental frequency power inputs when the machine is on load.
The losses supplied at the fundamental frequency cannot be measured directly and so are
derived from measurement of the fundamental frequency load current and the fundamental
frequency no-load power input.
2 Instrumentation
The extra loss due to operation on a converter supply is obtained from the difference of the
total and fundamental frequency power input on load.
The power inputs shall be measured simultaneous
...