SIST EN 62520:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektrische Zugförderung - Elektrische Maschinen für Schienen- und Straßenfahrzeuge - Umrichtergespeiste Asynchron-Linearmotoren des Kurzstatortyps (CEI 62520:2011)Applications ferroviaires - Traction électrique - Moteurs à induction linéaires (LIM) du type à primaire court alimentés par des convertisseurs de puissance (IEC 62520:2011)Railway applications - Electric traction - Short-primary type linear induction motors fed by power converters (IEC 62520:2011)45.060.01Železniška vozila na splošnoRailway rolling stock in general29.280Electric traction equipmentICS:Ta slovenski standard je istoveten z:EN 62520:2011SIST EN 62520:2011en01-oktober-2011SIST EN 62520:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 62520 NORME EUROPÉENNE
EUROPÄISCHE NORM August 2011
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. EN 62520:2011 E
ICS 45.060
English version
Railway applications -
Electric traction -
Short-primary type linear induction motors (LIM) fed by power converters (IEC 62520:2011)
Applications ferroviaires -
Traction électrique -
Moteurs à induction linéaires (LIM) du type à primaire court alimentés par des convertisseurs de puissance (CEI 62520:2011)
Elektrische Zugförderung -
Elektrische Maschinen für Schienen- und Straßenfahrzeuge -
Umrichtergespeiste Asynchron-Linearmotoren des Kurzstatortyps (IEC 62520:2011)
This European Standard was approved by CENELEC on 2011-06-29. 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 Central Secretariat 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 Central Secretariat 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, 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.
at national level by publication of an identical
national standard or by endorsement
(dop)
2012-03-29 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2014-06-29 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 62520:2011 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 60034-5 NOTE
Harmonized as EN 60034-5. IEC 61672-1 IEC 61260 IEC 61287-1 IEC 61377-1 NOTE
Harmonized as EN 61672-1. NOTE
Harmonized as EN 61260. NOTE
Harmonized as EN 61287-1. NOTE
Harmonized as EN 61377-1. __________ SIST EN 62520:2011

- 3 - EN 62520:2011 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 60034-8 - Rotating electrical machines -
Part 8: Terminal markings and direction of rotation EN 60034-8 -
IEC 60050-131 - International Electrotechnical Vocabulary (IEV) -
Part 131: Circuit theory - -
IEC 60050-151 - International Electrotechnical Vocabulary (IEV) -
Part 151: Electrical and magnetic devices - -
IEC 60050-411 - International Electrotechnical Vocabulary (IEV) -
Chapter 411: Rotating machinery - -
IEC 60050-811 - International electrotechnical
vocabulary (IEV) - Chapter 811: Electric traction - -
IEC 60085 - Electrical insulation - Thermal evaluation and designation EN 60085 -
IEC 60349-2 2010 Electric traction - Rotating electrical machines for rail and road vehicles - Part 2: Electronic converter-fed alternating current motors EN 60349-2 2010
IEC 60850 - Railway applications - Supply voltages of traction systems - -
IEC 61133 2006 Railway applications - Rolling stock - Testing of rolling stock on completion of construction and before entry into service - -
IEC 61373 - Railway applications - Rolling stock equipment - Shock and vibration tests EN 61373 -
IEC 62520 Edition 1.0 2011-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Railway applications – Electric traction – Short-primary type linear induction motors (LIM) fed by power converters
Applications ferroviaires – Traction électrique – Moteurs à induction linéaires (LIM) du type à primaire court alimentés par des convertisseurs de puissance
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE V ICS 45.060 PRICE CODE CODE PRIX ISBN 978-2-88912-490-9
– 2 – 62520  IEC:2011 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 8 4 Environmental conditions . 12 5 Characteristics . 13 5.1 Exchange of information . 13 5.2 Reference temperature . 14 5.3 Specified characteristics . 14 5.4 Declared characteristics . 14 5.5 Efficiency characteristics . 15 5.6 Traction motor characteristics . 15 6 Marking . 15 6.1 Primary nameplate . 15 6.2 Secondary marking. 15 7 Test categories . 16 7.1 Test categories . 16 7.1.1 General . 16 7.1.2 Type tests . 16 7.1.3 Routine tests . 17 7.1.4 Investigation tests . 17 7.2 Summary of tests . 17 8 Type tests . 18 8.1 Temperature-rise tests . 18 8.1.1 General . 18 8.1.2 Ventilation during temperature-rise tests . 18 8.1.3 Measurement of temperature . 18 8.1.4 Judgement of results . 18 8.1.5 Limits of temperature rise . 18 8.2 Characteristic tests and tolerances . 19 8.2.1 General . 19 8.2.2 Tolerances . 20 8.3 Shock and vibration tests . 20 9 Routine tests . 20 9.1 Routine tests of primary . 20 9.1.1 General . 20 9.1.2 Characteristic tests and tolerance . 21 9.1.3 Dielectric tests . 21 9.1.4 Structural tests . 22 9.2 Routine tests of secondary . 23 9.2.1 Dimension test. 23 9.2.2 Chemical composition test . 23 9.2.3 Tension test. 23 9.2.4 Bending test . 23 SIST EN 62520:2011

62520  IEC:2011 – 3 – 9.2.5 Shear test . 23 9.2.6 Ultrasonic flaw detection . 23 9.2.7 Friction test . 23 9.2.8 Electrical conductivity test . 23 10 Investigation tests . 24 10.1 General . 24 10.2 Noise test . 24 Annex A (normative)
Measurement of temperature . 25 Annex B (informative)
Test method using a rotary test facility of a LIM. 27 Annex C (normative)
Supply voltages of traction systems . 29 Annex D (normative)
Agreement between user and manufacturer . 30 Bibliography . 31
Figure B.1 – Rotary test facility for LIM . 28
Table 1 – Technical items transferred and requested between the manufacturer of the primary and his counterparts . 14 Table 2 – Summary of tests for the primary . 17 Table 3 – Summary of tests for secondary . 18 Table 4 – Limits of temperature rise for continuous and other ratings . 19 Table 5 – Dielectric test voltages . 22
– 4 – 62520  IEC:2011 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
RAILWAY APPLICATIONS –
ELECTRIC TRACTION –
SHORT-PRIMARY TYPE LINEAR INDUCTION
MOTORS (LIM) FED BY POWER CONVERTERS
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 62520 has been prepared by IEC technical committee 9: Electric equipment and systems for railways. The text of this standard is based on the following documents: FDIS Report on voting 9/1531/FDIS 9/1544/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. SIST EN 62520:2011

62520  IEC:2011 – 5 – 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
• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended.
– 6 – 62520  IEC:2011 INTRODUCTION This International Standard is introduced because there are significant differences between the rotary induction motor and the linear induction motor (LIM). These differences necessitate a different testing standard to ensure consistency, repeatability and dependability of the test results. For clarification, the significant differences are listed below: a) The LIM has a power factor and an electric efficiency substantially lower than those of rotary motors, because its magnetic gap length is several times that of the rotary motors. As such, the assumption made for the rotary induction motor that the primary leakage reactance is significantly less than the mutual reactance is no longer valid. b) The traction efficiency of a LIM does not include the mechanical transmission, typical of rotary motor propulsion. c) LIMs produce direct thrust between the primary and secondary without the need for mechanical contact. Therefore, there are no adhesion limits due to the rail and wheels contact of the typical rotary drive. No spin/slide controls are needed with LIMs and thus there is no need for testing of this function. d) LIMs produce not only thrust (which is in the longitudinal direction) but also normal and lateral forces which are effectively eliminated in the rotary induction motor, due to the symmetrical geometry of rotary motor. The normal force is either an attraction or a repulsion between the primary and secondary. The effect of these forces should be considered on deflection of primary and secondary and for their mechanical strength and rigidity, particularly as the deflection will affect the gap between primary and secondary and thereby change the LIM performance. e) The normal force mentioned in d) has a direct effect on the design of magnetically levitated vehicles. Depending on whether the normal force is attractive or repulsive, this force will either assist the suspension of the vehicle or oppose it. Thus testing of the LIM must ensure that the force occurs in the appropriate part of the LIM operating range. f) Information in Table 1 should be shared with subsystem component designers. Particular attention is drawn to the need for collaboration between the designers of the LIM and its associated converter as detailed in 5.1. SIST EN 62520:2011

62520  IEC:2011 – 7 – RAILWAY APPLICATIONS –
ELECTRIC TRACTION –
SHORT-PRIMARY TYPE LINEAR INDUCTION
MOTORS (LIM) FED BY POWER CONVERTERS
1 Scope This International standard applies to short-primary type linear induction motors (LIM) for propelling rail and road vehicles.
This standard applies to a specific configuration of LIM that has the primary mounted on either the vehicle body or trucks and a secondary that is fixed to the track and that is connected only by a magnetic field with the primary.
The object of this standard is to allow the performance of a LIM to be confirmed by tests and to provide a basis for assessment of its suitability for a specified duty. The rating of LIMs fed in parallel by a common converter should take into account the effect on load-sharing due to differences of gap length and of LIM characteristics. The user should be informed of the maximum permissible difference in gap length for the particular application. The electrical input to LIMs covered by this standard
should come from an electronic converter. NOTE At the time of drafting, only the following combination of LIMs and converters had been used for traction applications, but it may also apply to other combinations which may be used in the future: – LIMs fed by voltage source converters. 2 Normative references 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. IEC 60034-8, Rotating electrical machines – Part 8: Terminal markings and direction of rotation IEC 60050-131, International Electrotechnical Vocabulary – Part 131: Circuit theory IEC 60050-151, International Electrotechnical Vocabulary – Part 151: Electrical and magnetic devices IEC 60050-411, International Electrotechnical Vocabulary – Part 411: Rotating machinery IEC 60050-811, International Electrotechnical Vocabulary – Part 811: Electric traction IEC 60085, Electrical insulation – Thermal evaluation and designation IEC 60349-2:2010, Electric traction – Rotating electrical machines for rail and road vehicles – Part 2: Electronic convertor-fed alternating current motors IEC 60850, Railway applications – Supply voltages of traction systems SIST EN 62520:2011

– 8 – 62520  IEC:2011 IEC 61133:2006, Railway applications – Rolling stock – Testing of rolling stock on completion of construction and before entry into service IEC 61373, Railway applications – Rolling stock equipment – Shock and vibration tests 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-131, IEC 60050-151, IEC 60050-411 and IEC 60050-811, apply, as do the following. 3.1
LIM rating combination of simultaneous values of electrical and mechanical quantities, with their duration and sequence assigned to the LIM by the manufacturer 3.2
rated value numerical value of any quantity included in a rating 3.3
continuous rating mechanical output that the LIM can deliver on the test bed for an unlimited time under the conditions specified in 8.1 without exceeding the limits of temperature rise given in Table 4, all other appropriate requirements in this part also being satisfied NOTE Several continuous ratings may be specified. 3.4
short-time rating (for example, one hour) mechanical output that the LIM can deliver on the test bed for the stated time without exceeding the limits of temperature rise given in Table 4 NOTE The test being carried out as specified in 8.1 starting with the LIM cold, all other appropriate requirements in this part being also satisfied. 3.5
intermittent duty rating duty cycle in which the LIM may be operated without the temperature rises exceeding the limits given in Table 4 at any point 3.6
equivalent rating continuous rating with constant values of voltage, current and speed that, as far as temperature rise is concerned, is equivalent to the intermittent duty cycle which the LIM has to withstand in service NOTE This rating should be agreed between user and manufacturer. 3.7
guaranteed rating rating assigned by the manufacturer for test purposes NOTE Normally this is continuous rating but in special cases the user and manufacturer may agree that it be a short-time or intermittent rating. 3.8
rated voltage root-mean-square value of the fundamental component of the line-to-line voltage applied to a LIM when it is operating at a guaranteed rating SIST EN 62520:2011

62520  IEC:2011 – 9 – NOTE For LIMs fed directly or indirectly from a contact system, it is normally the highest voltage (excluding transients) which can be applied to the LIM when it is drawing the rated current with the contact system at its nominal voltage as defined in Annex C. 3.9
rated speed speed at a guaranteed rating 3.10
maximum voltage highest root-mean-square value of the fundamental component of the line-to-line supply voltage which can be applied to the LIM in service 3.11
repetitive peak voltage peak value of the waveform of the converter output voltage, any random transient peaks arising from line voltage transients or other causes being disregarded 3.12
maximum current maximum current shown on the specified characteristic as defined in 5.3 3.13
maximum output
maximum value of output in an operation 3.14
thrust longitudinal accelerating or decelerating force produced when a LIM is in operation 3.15
maximum thrust maximum value of thrust in an operation 3.16
efficiency ratio of measured/calculated output power to measured/calculated input power 3.17
linear induction motor LIM type of electrical machine which operates on the same principles as the classical rotary induction motor NOTE Similar to the rotary motor, the LIM’s primary and secondary are magnetically coupled and the magnetic field from the primary induces eddy current in the secondary. This magnetic interaction produces a thrust/braking force between the primary and the secondary. 3.18
single-sided linear induction motor SLIM LIM whose primary exists only on one side of the secondary side 3.19
end effect performance deterioration and three-phase asymmetry which appear in high-speed operation of an LIM due to the finite longitudinal length of primary NOTE The primary core has finite length. The travelling magnetic field at both longitudinal ends is zero. When there is motion between the primary and secondary there is a non-uniform distribution of the flux density in the air SIST EN 62520:2011

– 10 – 62520  IEC:2011 gap. This non-uniform magnetic flux density causes an asymmetry among three-phase currents and a reduction of thrust that increase with high speed. 3.20
transverse edge effect
phenomena caused by the finite lateral width of the primary and secondary sides 3.21
primary the primary comprises three parts; a three-phase winding, a slotted laminated ferromagnetic core and a mechanical support structure 3.22
short primary type short primary type has the primary installed on board the vehicle and the secondary fixed to the track or guideway; the secondary is essentially almost continuous along the track 3.23
secondary reaction plate, reaction rail conductor and ferromagnetic iron core distanced more than several millimetres from the primary 3.24
cladding reaction plate method of bonding or securing the conductive reaction plate to the surface of the secondary core 3.25
secondary conductor non-magnetic conductive reaction plate secured to the surface of the secondary ferromagnetic iron core 3.26
secondary overhangs additional width of secondary reaction plate in comparison with primary core width 3.27
secondary supporting structure steel fabricated structure which secures the conductive reaction plate and secondary ferromagnetic iron core to the guideway surface and provides for any adjustment 3.28
mechanical gap physical vertical separation between the bottom surface of the primary and the top surface of the secondary 3.29
nominal gap length mechanical gap applicable to LIM-rated performance design 3.30
magnetic gap gap length in a magnetic circuit; the physical distance between the primary and the secondary ferro-magnetic cores SIST EN 62520:2011

62520  IEC:2011 – 11 – 3.31
travelling magnetic field magnetic field produced by primary windings of a LIM, which corresponds to the rotating field in a rotary AC-machine 3.32
pole pitch τ longitudinal distance between two adjacent poles of the magnetic field 3.33
synchronous speed
speed of the fundamental wave of travelling magnetic field of LIMs vs=2f2
(m/s) where f is the frequency of a power supply, i.e., primary frequency
(Hz); 2 is the pole pitch (m). 3.34
slip difference between the synchronous speed and speed of the primary divided by the synchronous speed: spsννν–=s where vp is the primary speed (m/s). 3.35
slip frequency frequency of the secondary currents : fs = s f 3.36
normal force vertical force between primary and secondary and which is perpendicular to the direction of motion and to the surface of the primary 3.37
electric braking means of decelerating the vehicle by means of electric energy transfer NOTE There are two different methods as described below. 3.38
regenerative braking braking force caused by converting mechanical power to electrical power that is returned to the electric power supply system used to power onboard vehicle electrical systems or dissipated in a braking resistor SIST EN 62520:2011

– 12 – 62520  IEC:2011 3.39
reversing-phase braking electric braking method produced by reversing the longitudinal direction of the
magnetic field in the air-gap thereby creating a slip greater than 1 and dissipating the power in the secondary conductor as eddy currents 3.40
electromagnetic suspension magnetic levitation method achieved by using attractive magnetic force between electromagnets onboard and ferromagnetic rails 3.41
magnetic levitation force net vertical repulsive or attractive reactive forces generated between the LIM primary on the vehicle and the LIM secondary
3.42
magnetic lateral guidance force net horizontal repulsive reactive forces generated between the LIM primary on the vehicle and the LIM secondary 3.43
space-harmonic analysis electromagnetic analysis method for calculating the characteristics of a LIM NOTE The method uses the space harmonic spectrum derived by a Fourier series representation of the current sheets produced by a periodic sequence of virtual primaries. 3.44
user agency responsible for defining the operational requirements of the LIM and for signing the acceptance certificate 3.45
manufacturer company responsible for validating that the LIM meets the user’s performance requirements NOTE It is possible that a number of different companies may be involved in the design, manufacture and test of the components of the LIM. 4 Environmental conditions Unless otherwise specified by the user, the following environmental conditions apply: a) altitude: height above sea level not exceeding 1 200 m; b) temperature: air temperature in the shade not exceeding 40 °C. Whenever LIMs are intended to operate where one or both of these limits will be exceeded, special requirements may be agreed between user and manufacturer. Furthermore, the user shall inform the manufacturer of any particularly severe environmental condition such as dust, humidity, temperature, snow, dynamic effects, etc. to which the LIMs will be subjected. SIST EN 62520:2011

62520  IEC:2011 – 13 – 5 Characteristics 5.1 Exchange of information The LIM and converter designers shall collaborate to produce all the technical information necessary to ensure that the combined unit will meet the requirements of this standard. To fulfil this requirement, the LIM designer shall provide the converter designer with all information necessary to fully evaluate the interaction between the LIM and the converter. The converter designer shall also provide the LIM designer with the characteristics showing, for example, the converter line-to-line output voltage (including the repetitive voltage peaks), current, fundamental frequency, harmonics and power over the whole range of the application, including operation at the maximum and minimum values of the contact-system voltage. The documents recording this exchange of information shall form an integral part of the specification of the LIM and of the converter. NOTE 1 This requirement for the exchange of information is also included in IEC 61287-1. NOTE 2 The length of cable run between LIM and converter and the effect on peak voltages seen at the LIM terminals should be considered. In addition, the designer of the primary of a LIM, the designer of the secondary, the fastening device of the secondary, and the system integrator should coordinate all the necessary technical items so that the LIM fulfills the requests described in this standard.
The designer of the primary of the LIM shall supply necessary technical information to the designer of the secondary and fastening devices of the secondary, the system integrator, for sufficient investigation on interaction between the primary and the secondary.
Also the designer of the secondary shall supply all the necessary technical information to the primary and the fastening devices of the secondary and the system integrator.
Technical items transferred and requested between the manufacturer of the primary and his counterparts are shown in Table 1. The documents recording this exchange of information shall form an integral part of the specification of the LIM. SIST EN 62520:2011

– 14 – 62520  IEC:2011 Table 1 – Technical items transferred and requested between the manufacturer of the primary and his counterparts
Items
Manufacturer of primary
Manufacturer of secondary
Manufacturer of secondary fastening device System integratora
Nominal gap length O
O
v
LIM type Technical data on primary v
O
O
Technical data on secondary (type and form including its base) O
v
O
O
Dimension and material of conductor Dimension and material of core v
O
O
Maximum thrust v
O
O
O
Maximum normal force v
O
O
O
Distribution of the normal force v
O
O
O
Maximum deflection
Primary v
O
Secondary
v
O
Secondary fastening device
v
O
Strength Primary v
O
Secondary
v
O
Secondary fastening device
v
O
Stress of support by secondary fastening device
O
O
v
v
Primary information supplier. O
Information sharer. a
System integrator may be either a system supplier or a transport authority. 5.2 Reference temperature All characteristics, irrespective of the class of insulation used on the LIM to which they apply, shall be drawn for a winding reference temperature of 150 °C which shall be stated in the characteristics. 5.3 Specified characteristics LIM specifications shall, as a general rule, include characteristic curves in accordance with the relevant clauses of this standard. These curves, defined as the “specified characteristics”, shall be plotted to the designed operating limits of each variable. Unless otherwise agreed between user and manufacturer, the characteristics shall show the LIM performance at the nominal voltage of the supply system as defined in Annex C, and shall be submitted to the user before the order for the LIMs is placed. 5.4 Declared characteristics Declared characteristics are derived from the results of type tests carried out in accordance with 8.2.1 and shall meet the requirements of 8.2.2. SIST EN 62520:2011

62520  IEC:2011 – 15 – Unless previously agreed, the declared characteristics of LIMs electromagnetically identical with any previously manufactured for the same user or application shall be those of the existing LIMs, in which case, the compliance with the characteristics shall be demonstrated by routine tests only. 5.5 Efficiency characteristics Efficiency characteristics shall take into account losses arising from the harmonics in the supply from the converter. 5.6 Traction motor characteristics The specified and declared characteristics of a traction motor shall be for the converter-supplied variable frequency characteristics, which show LIM line-to-line voltage, current, frequency, slip frequency, mean thrust and efficiency as a function of speed over the whole range of application of the LIM at the nominal gap length. Voltage curves shall show the root-mean-square value of the fundamental component. Current curves shall show the root-mean-square value of the fundamental component and the total root-mean-square value. For LIMs used in the braking mode, similar characteristics shall be produced showing the thrust input and the electrical output as a function of motor speed. NOTE 1 The system integrator determines the nominal gap length considering tolerance of the attachment of primary and secondary, abrasion of wheel and rail, the deflection of gap length according to vibration and shocks in running. NOTE 2 Subclause 5.1 refers to the need for the exchange of information between the designers of the LIM and of the converter. 6 Marking 6.1 Primary nameplate All LIM primaries covered by this standard shall carry a nameplate. The nameplate will include at least the following information:
a) manufacturer’s name; b) primary type designation; c) primary serial number; d) year of manufacture. Furthermore, a serial number shall be punched on the primary of every LIM. Those LIMs designed for unidirectional motion shall carry an arrow indicating the direction of motion. NOTE 1 The primary serial number and direction arrow should be easily readable when the primary is installed in the vehicle. Terminal and lead markings shall be in accordance with IEC 60034-8 unless otherwise agreed. If the standard direction is not easily determined by the appearance of the LIM, it shall be indicated by the manufacturer. NOTE 2 Example of marking for windings having 6 terminals: – U1; U2; V1; V2; W1; W2.
6.2 Secondary marking All LIM secondaries shall be permanently marked with an identification serial number. The marking will be placed on both sides of the support frame and have the following information: a) secondary type; SIST EN 62520:2011

– 16 – 62520  IEC:2011 b) length; c) manufacturer sequence number; d) special features. 7 Test categories 7.1 Test categories 7.1.1 General There are three categories of tests: a) type tests; b) routine tests; c) investigation tests.
7.1.2 Type tests 7.1.2.1 General Type tests are intended to prove the ratings, characteristics and performance of new types of LIM. They shall be carried out as specified in Clause 8 and on one primary of the LIM of every new design. Unless otherwise agreed, the LIM shall be one of the first ten manufactured. Where there is a change in place and/or method of manufacture, requirements of 7.1.2.3 apply. Before testing commences, the manufacturer shall provide the user with a test specification outlining the tests to be undertaken to demonstrate compliance with this standard. Following completion of the type tests, the manufacturer shall supply the user with a full test report. 7.1.2.2 Type tests on converter supply If each LIM is fed by its own converter, the type test shall preferably be carried out using the converter to be employed in service, but, as an alternative, a supply which closely resembles the supply from the vehicle converter in the magnitude and harmonics may be employed. If several LIMs are fed in parallel from a single converter, the type test shall be carried out on a single primary of the LIM using a supply closely resembling the supply from the vehicle converter in magnitude and harmonic content of the waveform.
7.1.2.3 Type tests on sinusoidal supply This test is to provide a reference for the characteristics of a LIM. The test shall include a temperature rise test at a rating determined by the manufacturer. Voltage, frequency, thrust, ventilation and test duration can be at the manufacturer’s discretion, but the duration of the test shall be at least 1 h and at values that do not over-stress the LIM above those normally seen in service. The test parameters shall be retained for any subsequent test on that design of LIM. The temperature-rise measurements shall be carried out as detailed in 8.1. 7.1.2.4 Repeat type test Subject to agreement, and to the results of both the type test on sinusoidal supply (refer to 7.1.2.3), and the routine test for the new LIM being within the tolerances established on the previous LIM’s, a full type test is not required
for the new LIM provided that the manufacturer SIST EN 62520:2011

62520  IEC:2011 – 17 – has produced a full type test report for a previous LIM of the same electromagnetic design at the same or higher rating. This also applies to repeat orders, and where there is a change of place and/or method of manufacture. 7.1.3 Routine tests Routine tests are intended to demonstrate that the primary of a LIM has been assembled correctly, is able to withstand the appropriate dielectric tests and is in sound working order both mechanically and electrically. The tests listed in Table 2 shall be carried out on all LIM primaries. The routine test on the secondary will demonstrate that the secondary conforms to the design configuration, meets the dimensional tolerances and other specific requirements agreed in advance by the user and manufacturer. The routine tests for the secondary are listed in Table 3. The test quantities for the secondary may be agreed between the user and manufacturer. The routine tests specified in Clause 9 shall normally be carried out on all LIMs but, before placing an order, the user and manufacturer may agree to adopt an alternative test procedure (e.g. in the case of LIMs produced in large quantities under a strict quality assurance procedure). This may permit reduced routine testing of all LIMs or may require the full tests on a proportion of LIMs chosen at random from those produced on the order. Any such agreement shall require the dielectric tests specified in 9.1.3 to be carried out on all LIMs. 7.1.4 Investigation tests
Investigation tests are optional special tests performed to obtain additional information. They shall be carried out only if agreement between user and manufacturer has been reached before placing the order for manufacture of the LIMs. The results of these tests shall not influence acceptance of LIMs. 7.2 Summary of tests Tables 2 and 3 list the tests required for compliance with this standard. Table 2 – Summary of tests for the primarya
Test category
Type Routine Investigation Temperature rise
8.1
Short-time thermal test /heat run 7.1.2.3 9.1.1b
Characteristics
8.2 9.1.2
Dielectric
9.1.3
Shock and vibration
8.3
Structural tests
9.1.4
Noise
10.2 a All primaries, including those type tested, shall be routine tested. b Optional tests are subject to agreement between user and manufacturer.
– 18 – 62520  IEC:2011 Table 3 – Summary of tests for secondary Test item Type test Routine test Investigation test Dimension test
9.2.1
Chemical composition test
9.2.2
Tension test
9.2.3
Bending test
9.2.4
Shear test
9.2.5
Ultrasonic flaw detection
9.2.6
Friction test
9.2.7
Electrical conductivity test
9.2.8
8 Type tests 8.1 Temperature-rise tests
8.1.1 General The tests shall be carried out at the guaranteed ratings of the primary. In the case of continuous rating tests of primary current and frequency, the time to reach a steady temperature may be shortened by commencing the test at an increased load or reduced ventilation, provided that the rated conditions are subsequently maintained for at least 2 h or until it is demonstrated by appropriate means that steady temperatures have been reached. The tests may be carried out without using the secondary. NOTE Steady temperature is defined as a change in temperature of less than 2 K during the final hour of the test 8.1.2 Ventilation during temperature-rise tests
If cooling is by forced ventilation, the static pressure and the airflow specified by the manufacturer shall be used for testing. In general, no cooling corresponding to that produced by the movement of the vehicle shall be provided but, where th
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