EN 61377:2016

SLOVENSKI STANDARD
01-julij-2016
1DGRPHãþD
SIST EN 61377-1:2006
SIST EN 61377-2:2003
SIST EN 61377-3:2003
Železniške naprave - Vozna sredstva - Kombinirano preskušanje motorjev in
njihovega krmiljenja
Railway applications - Rolling stock - Combined-testing of motors and their control
system
Ta slovenski standard je istoveten z: EN 61377:2016
ICS:
29.160.30 Motorji Motors
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61377
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2016
ICS 45.060 Supersedes EN 61377-1:2006, EN 61377-2:2002,
EN 61377-3:2002
English Version
Railway applications - Rolling stock - Combined test method for
traction Systems
(IEC 61377:2016)
Applications ferroviaires - Matériel roulant - Méthode Bahnanwendungen - Bahnfahrzeuge - Kombiniertes
d'essais combinés pour systèmes de traction Prüfverfahren für Traktionssysteme
(IEC 61377:2016) (IEC 61377:2016)
This European Standard was approved by CENELEC on 2016-02-23. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61377:2016 E
European foreword
The text of document 9/2078/FDIS, future edition 2 of IEC 61377, prepared by IEC/TC 9 "Electrical
equipment and systems for railways" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN 61377:2016.
The following dates are fixed:
(dop) 2016-11-23
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-02-23
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61377-1:2006, EN 61377-2:2002 and EN 61377-3:2002.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61377:2016 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60077-3 NOTE Harmonized as EN 60077-3.
IEC 60077-4 NOTE Harmonized as EN 60077-4.
IEC 60310 NOTE Harmonized as EN 60310.
IEC 60322 NOTE Harmonized as EN 60322.
ISO 14253-2 NOTE Harmonized as EN ISO 14253-2.
ISO/IEC 17025 NOTE Harmonized as EN ISO/IEC 17025.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu
Publication Year Title EN/HD Year

-
IEC 60050 Series International Electrotechnical Vocabulary -
-
IEC 60349-1 -  Electric traction - Rotating electrical EN 60349-1
machines for rail and road vehicles -
Part 1: Machines other than electronic
converter-fed alternating current motors
-
IEC 60349-2 -  Electric traction - Rotating electrical EN 60349-2
machines for rail and road vehicles -
Part 2: Electronic converter-fed alternating
current motors
-
IEC/TS 60349-3 -  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 60349-4 -  Electric traction - Rotating electrical EN 60349-4
machines for rail and road vehicles -
Part 4: Permanent magnet synchronous
electrical machines connected to an
electronic converter
-
IEC 60850 -  Railway applications - Supply voltages of -
traction systems
-
IEC 61133 -  Railway applications - Rolling stock - -
Testing of rolling stock on completion of
construction and before entry into service
-
IEC 61287-1 -  Railway applications - Power converters EN 61287-1
installed on board rolling stock -
Part 1: Characteristics and test methods
-
IEC 62313 -  Railway applications - Power supply and -
rolling stock - Technical criteria for the
coordination between power supply
(substation) and rolling stock

IEC 61377 ®
Edition 2.0 2016-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Rolling stock – Combined test method for traction

systems
Applications ferroviaires – Matériel roulant – Méthode d’essais combinés pour

systèmes de traction
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060 ISBN 978-2-8322-3101-2

– 2 – IEC 61377:2016 © IEC 2016
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 10
3 Terms and definitions . 10
4 Traction system characteristics . 12
5 General test requirements . 13
6 General test conditions . 14
6.1 Test setup . 14
6.1.1 Setup of traction system under test . 14
6.1.2 Test bench architecture . 15
6.2 Cooling during the test . 17
6.3 Mechanical output measurement . 18
6.3.1 General . 18
6.3.2 Summation of losses method . 18
6.3.3 Comparison of power method . 19
6.3.4 Comparison of current method . 20
6.3.5 Back to back method . 21
6.4 Tolerances and measuring accuracy . 21
6.5 Environmental conditions . 21
7 Torque characteristic test . 22
7.1 General . 22
7.2 Torque characteristics test at motor hot . 22
7.2.1 Test objective . 22
7.2.2 Test conditions . 22
7.2.3 Test procedure . 23
7.2.4 Acceptance criteria . 23
7.3 Torque characteristics test at motor cold . 23
7.3.1 Test objective . 23
7.3.2 Test conditions . 23
7.3.3 Test procedure . 24
7.3.4 Acceptance criteria . 24
7.4 Starting torque at zero speed . 24
7.4.1 Test objective . 24
7.4.2 Test conditions . 24
7.4.3 Test procedure . 24
7.4.4 Acceptance criteria . 24
8 Efficiency and energy consumption test . 24
8.1 General . 24
8.2 Efficiency characteristics . 25
8.2.1 Test objective . 25
8.2.2 Test conditions . 25
8.2.3 Test procedure . 25
8.2.4 Acceptance criteria . 25
8.3 Energy consumption on route profile . 26
8.3.1 Test objective . 26

IEC 61377:2016 © IEC 2016 – 3 –
8.3.2 Test conditions . 26
8.3.3 Test procedure . 26
8.3.4 Acceptance criteria . 26
9 Temperature rise test . 27
9.1 General . 27
9.2 Temperature rise test at constant load . 27
9.2.1 Test objective . 27
9.2.2 Test conditions . 27
9.2.3 Test procedure . 27
9.2.4 Acceptance criteria . 28
9.3 Temperature rise on route profile . 28
9.3.1 Test objective . 28
9.3.2 Test conditions . 28
9.3.3 Test procedure . 28
9.3.4 Acceptance criteria . 28
9.4 Test with wheel diameter differences for paralleled asynchronous motors . 29
9.4.1 General . 29
9.4.2 Test objective . 29
9.4.3 Test conditions . 29
9.4.4 Test procedure . 30
10 System function test . 31
10.1 Start from backward/reverse motion . 31
10.1.1 Test objective . 31
10.1.2 Test conditions . 31
10.1.3 Test procedure . 31
10.1.4 Acceptance criteria . 31
10.2 Motoring-braking transition. 31
10.2.1 Test objective . 31
10.2.2 Test conditions . 31
10.2.3 Test procedure . 32
10.2.4 Acceptance criteria . 32
11 Variation of line voltage . 32
11.1 Test objective . 32
11.2 Test conditions . 32
11.3 Test procedure . 33
11.4 Acceptance criteria . 34
12 System protection test . 34
12.1 General . 34
12.2 Rapid voltage changes test . 34
12.2.1 Test objective . 34
12.2.2 Test conditions . 34
12.2.3 Test procedure . 35
12.2.4 Acceptance criteria . 36
12.3 Traction supply voltage interruption . 36
12.3.1 Test objective . 36
12.3.2 Test conditions . 36
12.3.3 Test procedure . 36
12.3.4 Acceptance criteria . 36

– 4 – IEC 61377:2016 © IEC 2016
12.4 Traction supply contact loss . 36
12.4.1 Test objective . 36
12.4.2 Test conditions . 36
12.4.3 Test procedure . 37
12.4.4 Acceptance criteria . 37
12.5 Sudden loss of regeneration capability . 37
12.5.1 Test objective . 37
12.5.2 Test conditions . 37
12.5.3 Test procedure . 38
12.5.4 Acceptance criteria . 38
12.6 Traction inverter stop . 38
12.6.1 Test objective . 38
12.6.2 Test conditions . 38
12.6.3 Test procedure . 38
12.6.4 Acceptance criteria . 38
12.7 Temperature calculation functions . 39
12.7.1 General . 39
12.7.2 Test objective . 39
12.7.3 Test conditions . 39
12.7.4 Test procedure . 39
12.7.5 Acceptance criteria . 39
12.8 Over-current and over-voltage protection . 39
12.9 Control battery supply interruption . 39
12.9.1 Test objective . 39
12.9.2 Test conditions . 39
12.9.3 Test procedure . 39
12.9.4 Acceptance criteria . 40
13 Fault management test . 40
13.1 General . 40
13.2 Loss of sensor function . 40
13.3 Loss of command and feedback signals . 40
13.4 Fault in cooling systems . 40
13.5 Earth and short-circuit faults . 41
Annex A (normative) List of combined tests . 42
Annex B (informative) List of clauses with agreements between the user and
manufacturer . 43
Annex C (normative) Special test items and conditions for DC motors . 44
C.1 General . 44
C.2 Test bench architecture . 44
C.2.1 Test setup . 44
C.2.2 Load system . 44
C.3 Commutation test . 45
Bibliography . 46

Figure 1 – Overview of traction system architecture . 8
Figure 2 – Example of relationship between the “traction system under test” and the
“traction system” . 9
Figure 3 – Traction system – relationship between user, suppliers and manufacturer . 11

IEC 61377:2016 © IEC 2016 – 5 –
Figure 4 – Example of peak temperatures on route profile . 13
Figure 5 – Example of test bench architecture with speed controlled load system . 15
Figure 6 – Example of test bench architecture with back to back method . 16
Figure 7 – Examples of simulating auxiliary load and traction load power supply . 17
Figure 8 – Example of measurement using summation of losses method . 18
Figure 9 – Example of measurement using comparison of power method . 20
Figure 10 – Example of measurement using comparison of current method . 21
Figure 11 – Example of measurement using back to back method. 21
Figure 12 – Torque characteristics of a traction system . 23
Figure 13 – Effect of wheel diameter mismatch on the torque characteristic of
asynchronous motor . 29
Figure 14 – Test conditions for motoring-braking transition . 32
Figure 15 – Test conditions in traction system range of voltage . 33
Figure 16 – Test conditions for variation of the voltage . 33
Figure 17 – Rapid voltage change with DC line voltage . 35
Figure 18 – Rapid voltage change with AC line voltage . 35
Figure 19 – Example of method to create a rapid voltage change . 36
Figure 20 – Example of method to simulate the traction supply contact loss. 37
Figure 21 – Example of method to create loss of regenerative capability. 38
Figure C.1 – Example of braking configuration for a traction system under test with
separately excited DC motor . 44
Figure C.2 – Test bench arrangement for back to back test of the traction system
under test with a DC motor . 45

Table A.1 – List of combined tests . 42
Table B.1 – List of subclauses including agreements between the user and
manufacturer . 43

– 6 – IEC 61377:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS – ROLLING STOCK –
COMBINED TEST METHOD FOR TRACTION SYSTEMS

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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
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
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
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
members of its technical committees and IEC National Committees for any personal injury, property damage or
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 61377 has been prepared by IEC technical committee 9: Electrical
equipment and systems for railways.
This edition cancels and replaces IEC 61377-1 (2006), IEC 61377-2 (2002) and IEC 61377-3
(2002). It constitutes a technical revision.
This edition includes the following main technical changes with regard to the previous
editions: it includes updates as necessary in order to meet the current technical state of the
art, to improve clarity and to create an edition that considers all types of motors part of a
traction system.
IEC 61377:2016 © IEC 2016 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
9/2078/FDIS 9/2113/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.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.
– 8 – IEC 61377:2016 © IEC 2016
RAILWAY APPLICATIONS – ROLLING STOCK –
COMBINED TEST METHOD FOR TRACTION SYSTEMS

1 Scope
This International Standard applies to the traction system consisting (when it applies) of
traction motor(s), converter(s), traction control equipment including software, transformer,
input filters, brake resistors, main circuit-breaker, cooling equipment, transducers, contactors,
etc.
Figure 1 is just an overview and is not representative of all traction system architectures.
Current collector, mechanical braking systems and gearbox are not in the scope of this
standard.
Types of motors applicable in this standard are asynchronous, or synchronous including
permanent magnet (PMM), or direct current (DC).
The auxiliary converter(s) is (are) part of the scope when the auxiliary converter is enclosed
within the traction converter. Otherwise, when the traction system feeds an auxiliary system
outside the traction converter, the auxiliary system can be replaced by an equivalent load.
NOTE 1 Energy storage system is not considered in this standard since there is no specific type test standard for
energy storage system.
NOTE 2 Auxiliary loads validation is not part of this standard.
NOTE 3 The gearbox can be part of test set-up, but it is not a part of traction system.
Power input side
Transformer
AC voltage from
AC voltage DC voltage
diesel generator
Main circuit-breaker
Auxiliary converter Transformer Input filter
Pre-charge
Traction control
equipment
Rectifer
Intermediate DC link
Inverter
Chopper
Traction
Disconnect
auxiliary
switches
Auxiliary output
loads
voltages
Braking resistor
Asynchronous or
synchronous
M
motor(s)
Output side – motor torque
IEC
Figure 1 – Overview of traction system architecture

IEC 61377:2016 © IEC 2016 – 9 –
The objective of this standard is to specify the type test of a traction system, mainly
comprising of:
– test of performance characteristics;
– test methods of verifying these performance characteristics.
This standard does not specify the type test of each individual component.
The traction system under test incorporates at least one complete traction conversion line (at
least one traction converter and its related loads, one transformer in the case of AC supply or
input filter in the case of DC supply). The representativeness of the traction system under test
versus the actual traction system is agreed between the user and manufacturer.
Figure 2 gives one example of the relationship between the traction system under test and the
whole traction system.
Traction system under test
M
M
M
M
M
M
M
M
Traction system
IEC
Figure 2 – Example of relationship between the “traction system under test”
and the “traction system”
The traction system under test is equipped with components that are representative of the
production series.
Deviations may be permitted by agreement between user and manufacturer, and are justified
from an impact stand point in advance of the test. Using equivalent components or parts is
permitted if no significant influence on the test result is expected.

– 10 – IEC 61377:2016 © IEC 2016
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050 (all parts): International Electrotechnical Vocabulary (available at
http://www.electropedia.org)
IEC 60349-1, Electric traction – Rotating electrical machines for rail and road vehicles –
Part 1: Machines other than electronic converter-fed alternating current motors
IEC 60349-2, Electric traction – Rotating electrical machines for rail and road vehicles –
Part 2: Electronic converter-fed alternating current motors
IEC TS 60349-3, 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 60349-4, Electric traction – Rotating electrical machines for rail and road vehicles – Part
4: Permanent magnet synchronous electrical machines connected to an electronic converter
IEC 60850, Railway applications – Supply voltages of traction systems
IEC 61133, Railway applications – Rolling stock – Testing of rolling stock on completion of
construction and before entry into service
IEC 61287-1, Railway applications – Power converters installed on board rolling stock –
Part 1: Characteristics and test methods
IEC 62313, Railway applications – Power supply and rolling stock – Technical criteria for the
coordination between power supply (substation) and rolling stock
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-411,
IEC 60050-551, IEC 60050-811, and the following apply:
3.1
traction system
system which provides traction torque, converting the input supply energy into mechanical
energy in motoring and the mechanical energy into electrical or thermal energy in braking (if
applicable), comprising of the entire conversion equipment located between the current
collector (excluded) and the motor shaft(s) and including all associated auxiliary equipment
needed to operate the system
3.2
traction system under test
representative traction system for combined test, according to Clause 1
3.3
component
constituent of traction system

IEC 61377:2016 © IEC 2016 – 11 –
3.4
user
organization which orders the traction system (see Figure 3)
Note 1 to entry: The user is normally an organization which operates the vehicle equipped with the traction
system, unless the responsibility is delegated to a main contractor or consultant.
3.5
manufacturer
organization which has the technical responsibility for the supply of the traction system (see
Figure 3)
Note 1 to entry: The manufacturer can be the supplier of one or more components of traction system, or of none
of them.
3.6
supplier
organization which has the responsibility of one or more of the components
User
Manufacturer
Supplier (traction Supplier
Supplier (motor) Supplier (converter)
control equipment) (component)
IEC
Figure 3 – Traction system – relationship between user, suppliers and manufacturer
3.7
duty
load to which the traction system is subjected, including motoring, coasting, and, if applicable,
electrical braking
3.8
duty cycle
specified sequence of operation conditions, e.g. the speed and torque over the time on an
elementary route
Note 1 to entry: Some examples of elementary route are:
• Main line train: route between two cities back and forth;
• Tramway: route between two stops;
• Metro: route between two stations.
Note 2 to entry: Typical duty cycle is defined as an agreement between the user and manufacturer.
3.9
route profile
repetition or combination of typical duty cycles in order to achieve steady temperature
(repetitive peak temperatures over successive duty cycles are within a given tolerance) or to
represent the daily operation of the vehicle
3.10
constant load
load applied at constant operating conditions (e.g. speed, voltage)

– 12 – IEC 61377:2016 © IEC 2016
Note 1 to entry: Several loads can be specified.
3.11
route profile load
load based on route profile on which the traction system under test is operated
3.12
speed
motor speed in r/min
Note 1 to entry: Motor speed (r/min) is convertible from vehicle speed (km/h) based on specified wheel diameter
and gear ratio.
3.13
maximum working speed
motor speed which corresponds to the maximum vehicle design speed at fully worn wheels or
the minimum rolling diameter of rubber tyres
3.14
test plan
list of all tests to be undertaken by the manufacturer that includes the mandatory and optional
tests to be agreed with the user
Note 1 to entry: In the test plan it is recommended to describe the components used in the traction system under
test.
3.15
test specification
all information, requirements and parameters to be applied to carry out and assess the test,
including e.g. scope of test, test objective, test conditions, test method, test procedure,
evaluation method, measurements, acceptance criteria with tolerances
3.16
test result
final assessment of test
3.17
optional test
test that is not mandatory and subject to agreement between the user and manufacturer
4 Traction system characteristics
Traction system specifications shall, as a general rule, include characteristic curves. These
curves are defined as the specified characteristics. They shall be plotted to the designed
operating limits of each variable. They shall generally be drawn for the AC or DC supply
voltage of the traction system at its specified nominal value. They may also be drawn for the
lower and higher voltage of the supply of the traction system if agreed between the user and
manufacturer.
These characteristics shall be drawn for a reference temperature of the motor (winding or
magnet) and the design temperature of the parts of the converter, transformer and line filter,
etc., expected by the supplier.
The reference temperature of the motor (winding or magnet) shall be according to the values
as in IEC 60349 series or subject to agreement between the user and manufacturer.
The following characteristics are defined:

IEC 61377:2016 © IEC 2016 – 13 –
a) Specified characteristics: values defined in order to fulfil the user contractual
requirements. They are the reference values for measurement and shall be validated on
the test bench.
b) Internal characteristics: internal design values which shall be measured and used to
prove the design but do not have an influence on the acceptance of the combined test,
such as root-mean-square value of current/voltage of traction motor for example.
Provided that the measurement results are compliant with the specified characteristics, the
test results remain valid, even if the internal characteristics are not exactly the same as the
ones specified. The difference should be agreed between the user and manufacturer.
The set of specified characteristics on fixed operating points over the speed-torque curve, at
given line voltages (according to IEC 60850 or otherwise specified if outside the scope of
IEC 60850) and given wheel diameter is:
• torque versus speed;
• efficiency of the traction system versus speed at maximum torque reference along the
curve.
Specified and internal characteristics can be measured during a speed sweep test or a test at
constant speed .
NOTE 1 In the case of speed sweep the inertia mass of the motor rotor considerably influences measurement of
the motor shaft torque.
The set of specified characteristics on the route profile at a specific line voltage is:
• torque reference value and speed versus time at the given wheel diameter;
• line current and voltage;
• all relevant peak temperatures (see Figure 4);
• input electrical energy consumption in kWh (integrated value over entire route profile).
NOTE 2 Specified and internal characteristics except those listed above are described in the following clauses for
each test.
Time
Duty cycle
Route profile
IEC
Figure 4 – Example of peak temperatures on route profile
5 General test requirements
The combined test gives the opportunity to run the components of the traction system under
test with operating conditions close to service.
Temperature
– 14 – IEC 61377:2016 © IEC 2016
All components shall be previously type-tested according to their relevant standards (except
some specific tes
...