CLC/TS 50535:2010

SLOVENSKI STANDARD
01-junij-2011
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Railway applications - Onboard auxiliary power converter systems
Bahnanwendungen - Hilfsbetriebeumrichtersystem für Schienenfahrzeuge
Applications ferroviaires - Convertisseur auxiliaire pour les véhicules ferroviaires
Ta slovenski standard je istoveten z: CLC/TS 50535:2010
ICS:
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.

TECHNICAL SPECIFICATION
CLC/TS 50535
SPÉCIFICATION TECHNIQUE
April 2010
TECHNISCHE SPEZIFIKATION
ICS 45.060.01
English version
Railway applications -
Onboard auxiliary power converter systems

Applications ferroviaires -  Bahnanwendungen -
Convertisseur auxiliaire pour les véhicules Hilfsbetriebeumrichtersystem
ferroviaires für Schienenfahrzeuge

This Technical Specification was approved by CENELEC on 2010-03-26.

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, 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.

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

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 50535:2010 E
Foreword
This Technical Specification was prepared by SC 9XB, Electromechanical material on board rolling
stock, of Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways.
It was circulated for voting in accordance with the Internal Regulations, Part 2, Subclause 11.3.3.3 and
was accepted as a CENELEC Technical Specification on 2010-03-26.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following date was fixed:
– latest date by which the existence of the CLC/TS

has to be announced at national level
(doa) 2010-06-26
This standardization project was derived from the EU-funded Research project MODTRAIN
(MODPOWER). It is part of a series of standards, referring to each other. The hierarchy of the
standards is intended to be as follows:

Annexes defined to be normative belong to the content of this Technical Specification; annexes
defined as informative are used only for information.
Annex A is normative and Annexes B, C and D are informative.

– 3 – CLC/TS 50535:2010
Contents
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations .11
4 Onboard auxiliary power converter systems .11
4.1 Definitions for onboard auxiliary power converter systems .11
4.2 Classification of onboard auxiliary power converter systems .13
5 General requirements .15
5.1 Environmental conditions .15
5.2 Protection class .15
5.3 Shock and vibration .16
5.4 Reliability, availability, maintainability and lifetime .16
5.5 Material .16
5.6 Fire protection .16
5.7 Nameplate .17
5.8 Documentation .17
6 Electrical Interfaces .18
6.1 Electric power interface of the auxiliary power converter .18
6.2 Electric power interface of the battery charger .23
7 Control interface of the onboard auxiliary power converter system (APCS) .25
8 Tests .26
Annex A (normative) Single pole train line voltages (RIC train line) .27
Annex B (informative) Train configurations .28
B.1 Train types .28
B.2 Typical ratings of auxiliary power converters and battery chargers .28
Annex C (informative) Type code .29
Annex D (informative) Example of the APCS communication interface .31
D.1 Signal groups .31
D.2 General APCS data .31
D.3 Input circuit and/or power conversion data.33
D.4 Auxiliary converter output data .35
D.5 Battery charger and LVDC output data .37
Bibliography .40

Figures
Figure 1 – Typical interfaces of an onboard auxiliary power converter system .12
Figure 2 – Example of auxiliary power converter system (Train class A) .12
Figure 3 – Example of auxiliary power converter system (Train class C0 and C1) .13
Figure 4 – Interface between battery and battery charger .25
Figure 5 – Control interface between the train communication and monitoring system (TCMS) and
the onboard auxiliary power system (APCS) .26
Figure B.1 – Train types for the development of generic system architectures .28
Figure C.1 – Example of onboard auxiliary power converter system (Train class A) .29

Tables
Table 1 – Classification of power inputs of onboard auxiliary power converters .13
Table 2 – Classification of functionalities of onboard auxiliary power converters .13
Table 3 – Classification of power outputs of onboard auxiliary power converters .14
Table 4 – Classification of basic attributes of onboard auxiliary power converters .14
Table 5 – Type code definition of onboard auxiliary power converters with a single output .14
Table 6 – Type code definition of onboard auxiliary power converters with multiple outputs .14
Table 7 – Specification of input power interface.18
Table 8 – Specification of output 3 AC voltage .20
Table 9 – Specification of input supply voltage .23
Table 10 – Specification of output 1 DC voltage .24
Table A.1 – Nominal voltages and tolerances of the single pole train line voltage .27
Table A.2 – Frequencies of the single pole power supply train line voltage systems .27
Table C.1 – Classification of the onboard auxiliary power converter system .30
Table C.2 – Type code definition of the onboard auxiliary power converter system.30
Table D.1 – Data exchange from APCS to TCMS .32
Table D.2 – Data exchange from TCMS to APCS .33
Table D.3 – Data exchange from APCS to TCMS .34
Table D.4 – Data exchange from TCMS to APCS .35
Table D.5 – Data exchange from APCS to TCMS .36
Table D.6 – Data exchange from TCMS to APCS .37
Table D.7 – Data exchange from APCS to TCMS .38
Table D.8 – Data exchange from TCMS to APCS .39

– 5 – CLC/TS 50535:2010
Introduction
This Technical Specification defines characteristics and interfaces for electric onboard auxiliary power
converter systems. This includes auxiliary power converters and battery chargers. The following
European Standards and Technical Specifications refer to the defined target energy supply system in
this present Technical Specification:
CLC/TS 50534 Railway applications – Generic system architectures for onboard electric
auxiliary power systems
(Characteristics and interface of generic system architectures for onboard
electric auxiliary power systems)
1)
EN 50533 Railway applications – Three-phase train line voltage characteristics
(Characteristics of the voltage system used for auxiliary power supply)
2)
EN 50546 Railway applications – Shore (external) supply system for rail vehicles
(Interface description of the shore supply including protection functions)
2)
EN 50547 Railway applications – Batteries for rail vehicles
(Standardized batteries for rail vehicles and charging characteristics)
CLC/TS 50537 (series) Railway applications – Mounted parts of the traction transformer and
cooling system
(Standardized products used in conjunction with traction transformers and
traction cooling systems)
CLC/TS 50535 has to be understood as a basic document of a set of hierarchically structured
specifications as illustrated in the foreword. This set of European Standards and Technical
Specifications defines a consistent technical framework beginning on an architectural level, followed
by standards belonging to important system interfaces and concluding this hierarchy with Technical
Specifications on component level. The diagram in the foreword points up these different system
integration levels and shows the dependencies between the documents.
One main objective of this standardisation initiative is to simplify the cooperation between concerned
railway stakeholders in charge of operating onboard auxiliary power systems, designing systems able
to cope with the operational requirements and stakeholders manufacturing auxiliary power system
components, which provide the requested services.
———————
1)
At draft stage.
2)
Under development.
1 Scope
This Technical Specification defines the classification of the electric onboard auxiliary power converter
system and defines its basic characteristics and interfaces. The onboard auxiliary power converter
system consists of the auxiliary converter and the battery charger function.
This Technical Specification applies to locomotive hauled passenger trains and electric multiple units
with distributed power as well as trains with concentrated power heads. Relevant train configuration
and concerned energy supply subsystems are defined in CLC/TS 50534. This Technical Specification
provides a technical base for implementation of onboard auxiliary power systems on different trains.
The objective of this specification is to define the required interfaces and characteristics of the
onboard auxiliary power converter system in order to enable further standardisation:
• interface between onboard auxiliary power converter system and onboard traction power system;
• interface of the onboard auxiliary power supply system to the low voltage grid and to a shore
supply (stationary workshop supply or external supply);
• interfaces of the auxiliary converter and the battery charger;
• characteristics of the onboard auxiliary power converter system.
The electrical operational behaviour is defined by requirements. Requirements for the type tests as
well as the routine test are referred.
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.
3)
TS 45545 (series) 2009 Railway applications – Fire protection on railway vehicles
CLC/TS 50534 Railway applications – Generic system architectures for onboard
electric auxiliary power systems
EN 12663 2000 Railway applications – Structural requirements of railway vehicle
bodies
4)
EN 50121-3-2 2000 Railway applications – Electromagnetic compatibility –
Part 3-2: Rolling stock – Apparatus
EN 50125-1 1999 Railway applications – Environmental conditions for equipment –
Part 1: Equipment on board rolling stock
EN 50163 2004 Railway applications – Supply voltages of traction systems
+ A1 2007
EN 50238 Railway applications – Compatibility between rolling stock and train
detection systems
———————
3)
Part 5 is of CENELEC origin – Other parts are from CEN.
4)
Superseded by EN 50121-3-2:2006, Railway applications – Electromagnetic compatibility – Part 3-2: Rolling stock –
Apparatus.
– 7 – CLC/TS 50535:2010
EN 50272-2 2001 Safety requirements for secondary batteries and battery
installations – Part 2: Stationary batteries
EN 50388 Railway applications – Power supply and rolling stock – Technical
criteria for the coordination between power supply (substation) and
rolling stock to achieve interoperability
5)
EN 50533 Railway applications – Three-phase train line voltage characteristics
6)
EN 50547 Railway applications – Batteries for rail vehicles
EN 60077-1 2002 Railway applications – Electric equipment for rolling stock –
Part 1: General service conditions and general rules
(IEC 60077-1:1999, mod.)
EN 60529 Degrees of protection provided by enclosures (IP Code) (IEC 60529)
EN 60721-3-5 Classification of environmental conditions – Part 3: Classification of
groups of environmental parameters and their severities –
Section 5: Ground vehicle installations (IEC 60721-3-5)
EN 61287-1 2006 Railway applications – Power convertors installed on board rolling
stock – Part 1: Characteristics and test methods (IEC 61287-1:2005)
EN 61373 1999 Railway applications – Rolling stock equipment – Shock and
vibration tests (IEC 61373)
7)
IEC 60038 2002 IEC standard voltages
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
customer
buyer of the train, where the auxiliary power converter system is integrated
3.1.2
operator
responsible party for providing the transportation service
3.1.3
system integrator
responsible party for integrating the auxiliary power converter products or units into the overall system.
This includes electrical and mechanical integration aspects
3.1.4
manufacturer
the manufacturer designs and manufactures the on-board auxiliary power converter products
———————
5)
At draft stage.
6)
Under development.
7 )
IEC 60038:2002 (Ed. 6.2) combines IEC 60038:1983 (Ed. 6) + A1:1994 + A2:1997. It is superseded by IEC 60038:2009
(Ed. 7), IEC standard voltages.

3.1.5
system architectures
system architectures describe basic designs of systems consisting of several subsystems and
functions. The description is precise in concern of essential interfaces and functions. The internal
design of the subsystems itself is not part of the architecture description
3.1.6
Train Control and Monitoring System (TCMS)
overriding control and monitoring system on the train
3.1.7
active front-end converters
converters with turn-off semiconductor, which can actively control their current waveforms and their
power factor
3.1.8
onboard Auxiliary Power Converter System (APCS)
onboard subsystem, which transforms converts electric energy for traction auxiliary loads and comfort
loads
3.1.9
Auxiliary Converter Unit (ACU)
part of the onboard auxiliary power converter system and includes multiple power conversion
functionality to supply the auxiliary converter intermediate circuit voltage (Aux DC-Link) and the 3 AC
train lines
3.1.10
auxiliary converter intermediate circuit voltage
DC Link Auxiliary (DCLA)
intermediate circuit voltage in a voltage range of typically 600 V to 800 V used in auxiliary converters
e.g. with 3 AC FF output
3.1.11
auxiliary power interface on coaches for international rulement
RIC interface
defines the input voltage for auxiliary converter on coaches for international rulement. The voltage and
frequencies for RIC are defined in Annex B
3.1.12
auxiliary winding interface on main traction transformer (TRAF)
TRAF interface derived from the auxiliary winding on the main traction transformer
3.1.13
traction converter intermediate circuit voltage
DC Link Traction (DCLT)
intermediate circuit voltage of the traction converter
3.1.14
power train line
electric energy distribution facility (e.g. bus bars, cables) used for the distribution of auxiliary power in
a train and coaches
3.1.15
3 AC FF train line voltage systems
voltage systems applied in conjunction with 3 AC power train lines using fixed frequency and
consequently fixed voltage amplitude (3 AC 400 V 50 Hz or 3 AC 480 V 60 Hz in accordance with
IEC 60038)
– 9 – CLC/TS 50535:2010
3.1.16
3 AC VF train line voltage systems
voltage systems applied in conjunction with 3 AC power train lines using variable frequency and
consequently variable voltage amplitude. Variation of frequency and voltage is used e.g. for power
control and noise reduction purposes
3.1.17
traction auxiliary loads
loads installed in subsystems, which are needed for the operation of the traction system and driving
operation of the train or locomotive. Pumps and fans in cooling systems for traction components are
representative examples of this load group. Compared to other auxiliary loads (comfort loads) a high
availability is required
3.1.18
comfort loads
loads connected to the auxiliary power supply system, which are used for the provision of a
comfortable environment and climate e.g. in the passenger coach interior, vestibule or other
compartments for passengers and train crew. Compared to traction auxiliary loads the requested
availability for comfort loads is lower and a reduced performance in degraded mode might be
accepted
3.1.19
HVAC unit
facility installed in coaches or locomotives used for heating, ventilation and air-conditioning (HVAC)
3.1.20
linear load
loads with a linear dependency between supply voltage and current producing negligible harmonic
content compared to rated values, e.g. heating resistors and induction motors are regarded as linear
loads
3.1.21
non-linear load
in contrast to linear loads, non-linear loads generate significant harmonic current or voltage content.
This kind of loads connected to a supply system with significant internal impedance will produce
significant harmonic voltages, e.g. uncontrolled rectifiers and active front-end converters belong to this
load group
3.1.22
unbalanced load
loads, which will cause unsymmetrical phase currents, i.e. currents that have different amplitudes
and/or phase angles in the three phases of a 3 AC supply system. Single phase loads connected to a
3 AC system are a representative example of unbalanced loads
3.1.23
Power Factor (PF)
under periodic conditions, ratio of the absolute value of the active power P to the apparent power S
P
λ =
S
3.1.24
Displacement Power Factor (DPF)
under periodic conditions, ratio of the absolute value of the active power of the P to the apparent
power S, but only calculated for the fundamental values
P
DPF =cos(ϕ ) =
S
3.1.25
Total Harmonic Distortion (THD)
ratio of the r.m.s. value of the harmonic content of an alternating quantity to the r.m.s. value of the
fundamental component of the quantity
h=40
U
∑
h
h=2
THD =
U
where
U represents a voltage;
U is the r.m.s. value of the fundamental voltage component;
h is the harmonic order;
U is the r.m.s. value of the harmonic voltage component of order h
h
NOTE The total harmonic ratio may be restricted to a certain harmonic order. This is to be stated.
3.1.26
Total Distortion Content (TDC)
quantity remaining when the fundamental component is subtracted from an alternating quantity, all
being treated as functions of time
2 2
TDC = Q − Q
where
Q is the r.m.s. value of the fundamental component;
Q is the total r.m.s. value;
Q can represent either current or voltage. It includes both harmonic and interharmonic
components
3.1.27
Total Distortion Ratio (TDR)
ratio of the r.m.s. value of the total distortion content of an alternating quantity to the r.m.s. value of the
fundamental component of the quantity
2 2
Q − Q
TDC
TDR = =
Q Q
1 1
3.1.28
Battery Charger (BC)
power electronic converter (AC-DC or DC-DC) used to supply low voltage loads and to charge
rechargeable batteries in the low voltage grid
3.1.29
low voltage supply systems
LV-DC system
low voltage supply system encompasses DC voltage supplies for control units, lighting and other
loads, which need an uninterruptible, and highly available electric energy supply. In most applications,
the low voltage supply system is fed by the auxiliary power supply system and supported e.g. by a
rechargeable battery
– 11 – CLC/TS 50535:2010
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
3 AC Three-phase Alternative Current or voltage
ACU Auxiliary Converter Unit
APCS onboard Auxiliary Power Converter System
BC Battery Charger
DC Direct Current
DCCA DC CAtenary
DCLA DC Link Auxiliary
DCLT DC Link Traction
DPF displacement power factor
EMC Electro-Magnetic Compatibility
IC Common Isolation
IS Separate Isolation
FF Fixed Frequency
HVAC Heating, Ventilation and Air Conditioning
LV-DC Low voltage supply system
N Neutral
NO No galvanic isolation
PF Power Factor
PWM Pulse Width Modulated
r.m.s. Root Mean Square
RIC Regolamento Internazionale delle Carrozze
SIN Sinusoidal waveform
TCMS Train Control and Monitoring System
TDC Total Distortion Content
TDR Total Distortion Ratio
THD Total Harmonic Distortion
TLI Train Line Interconnection
TRAF Auxiliary winding of the main transformer
U Common mode voltage at star point
CM
VF Variable Frequency
4 Onboard auxiliary power converter systems
4.1 Definitions for onboard auxiliary power converter systems
General requirements of the electronics systems installed in the rail vehicles are defined in
EN 61287-1. Onboard auxiliary power converter systems are an integral part of the electrical system in
trains. They are a collection of power components that convert, manage and distribute electrical power
from the input source(s) to the auxiliary loads.

Figure 1 describes in a generic manner the onboard auxiliary power converter systems. It combines all
possible configurations of supply systems in one figure and shows the relevant power interfaces within
the electrical on-board power system.

Figure 1 – Typical interfaces of an onboard auxiliary power converter system
Depending on the train class defined in Annex B, different configurations of onboard auxiliary power
systems exist.
Figure 2 – Example of auxiliary power converter system (Train class A)

– 13 – CLC/TS 50535:2010
TRAF DCCA DCLT
AC DC
DC DC
DC DC
3 AC 3 AC
traction auxiliary
3AC FF
loads
Figure 3 – Example of auxiliary power converter system (Train class C0 and C1)
See Clause 6 for the detailed definitions of the electrical power interfaces.
4.2 Classification of onboard auxiliary power converter systems
The classification of onboard auxiliary power converters systems is done based on their input,
functionality, output and basic attributes.
Table 1 – Classification of power inputs of onboard auxiliary power converters
Definition Values
TRAF Supplied by an auxiliary winding of the main transformer See 6.1.1
DCLT Supplied by the DC-link of the traction converter controlled by an input converter See 6.1.1
DCCA Supplied by the DC catenary voltage according to EN 50163 See 6.1.1
RIC Supplied by a train line according to RIC See Annex A
DCLA Supplied by the intermediate Aux DC-Link (within the auxiliary converter) See 6.2.1
3 AC 3 AC FF Trainline See EN 50533
LVDC Supplied by the low-voltage DC battery voltage See EN 60077-1

Table 2 – Classification of functionalities of onboard auxiliary power converters
Definition
ACU Auxiliary Converter Unit
BC Battery Charger, i.e. power conversion and battery charging functionality

Table 3 – Classification of power outputs of onboard auxiliary power converters
Definition Values
DCLA Intermediate Aux DC-Link (within the auxiliary converter) See 6.2.1
3 AC 3 AC FF or 3 AC VF output See 6.1.2
3 AC FF 3 AC fixed frequency output See 6.1.2
3 AC VF 3 AC variable frequency output See 6.1.2
LVDC Low-voltage DC output See 6.2.2

Table 4 – Classification of basic attributes of onboard auxiliary power converters
Definition Remarks
IC Output sharing a common isolation with another output See EN 50153 for needed preventive
measures to avoid high voltage reaching
IS Separate isolation of the output
the low voltage potentials
NO No galvanic isolation of the output
FF Fixed frequency output
VF Variable frequency output
DC DC output
PWM PWM waveform output PWM stands for Pulse Width Modulated
SIN Sinusoidal waveform output
DC DC waveform output
Rating Output power in kVA for auxiliary converter
in kW for battery charger
Based on the classifications given in Tables 1 to 4 the following type code definitions (see Table 5 and
Table 6) are introduced, which shall be used to classify onboard auxiliary power converters.
Table 5 – Type code definition of onboard auxiliary power converters with a single output
Input Functionality Output Basic attributes
Isolation Frequency Waveform Rating
Type code RIC ACU 3 AC IS FF SIN 40 kVA

Table 6 – Type code definition of onboard auxiliary power converters with multiple outputs
Input Functionality Output Basic attributes
Isolation Frequency Waveform Rating
Type code RIC ACU 3 AC IC VF PWM 30 kVA
ACU 3 AC IC FF SIN 40 kVA
BC LVDC IS DC DC 10 kVA
A further explanation of the type code can be found in Annex C.

– 15 – CLC/TS 50535:2010
5 General requirements
5.1 Environmental conditions
In general environmental conditions are as per EN 50125-1. The following specific requirements from
EN 50125-1 define operational parameters under which the auxiliary power system has to fulfil its
proper function.
Class AX (Maximum height shall be 1 600 m, unless
• Operational height above sea level:
otherwise specified)
• Cooling medium: Air, water (including additives to avoid freezing of the
cooling fluid at low temperatures)
• Acoustics: N1, see EN 61287-1:2006, 4.2.10.1
The auxiliary power system has to ensure an appropriate function at the given requirements in the list
below, according to EN 50125-1 and EN 60721-3-5.

• Temperature class:
T3
• Ambient temperature:
Deviations should be agreed between customer and
manufacturer, e.g. ambient temperature linked with
operational height.
-30 °C to -70 °C
• Transport and storage:
0 % to 100 % humidity
• Humidity:
5K2
• Climate class:
• Biological classification: 5B2
• Chemical classification: 5C2
5F2
• Contamination:
5S2
• Mechanical-active matters:
5K3
• Rain:
5K3
• Solar radiation:
5.2 Protection class
The definition of the IP classes is according to EN 60529.
The housing of the auxiliary power system has to be manufactured in that way to reach a protection
degree of at least IP54 for clean areas (e.g. for power semiconductors and control unit) for under floor
and roof installations.
Devices mounted in electrical compartments of locomotives, power heads or motor cars shall provide
protection class at least IP20, provided appropriate measures against dust and water are taken at
compartment level.
5.3 Shock and vibration
The auxiliary power system has to be able to operate under the conditions of shock and vibration
according to category 1, class A, EN 61373 and EN 12663.
5.4 Reliability, availability, maintainability and lifetime
According EN 61287-1:2006, 4.1.4 and 4.1.5.
5.5 Material
The operator shall provide to the manufacturer of the auxiliary power converter a list of materials,
which are forbidden or controlled by national law. The manufacturer shall specify for the operator a list
of material and the method of disposal of any components which contains toxic material.
5.6 Fire protection
The operator or the customer shall classify the rolling stock according to fire category A or B of the TSI
High Speed.
The TSI High Speed gives the following national standards dealing with the fire safety properties of the
used materials:
NF F 16-101:1988 and NF F 16-102:1992
• France
• Germany DIN 5510-1:1988 and DIN 5510-2:2003 with additional
measurement of toxicity
• Italy UNI CEI 11170-1:2005 and UNI CEI 11170-3:2005
• Poland PN-K-02511:2000, PN-K-02502:1992
BS 6853, GM/RT2120 issue 2 and AV/ST9002 issue 1.
• United Kingdom
Secondly the fire protection shall be ensured by appropriate test procedures for the used materials
and the construction according to the TS 45545 series:
dealing with the general approach,
• CEN/TS 45545-1
dealing with materials and components,
• CEN/TS 45545-2
dealing with fire resistance,
• CEN/TS 45545-3
• CEN/TS 45545-4 dealing with constructive fire protection design,
• CLC/TS 45545-5 dealing with electrical equipment,
dealing with fire detection and fire extinguishing and
• CEN/TS 45545-6
dealing with flammable liquids and equipment gases.
• CEN/TS 45545-7
The operator or customer shall classify the rolling stock considering the operation category and the
type of the rolling stock according to CEN/TS 45545-1. This classification determines the “Hazard
Level” with the requirements for the materials in CEN/TS 45545-1, e.g. if the rolling stock is
characterised with category B of the TSI then the operation category 3 of the TS 45545 series should
be chosen.
– 17 – CLC/TS 50535:2010
According to which of the above mentioned standards applies, the fire safety properties of the used
materials have to be certified and shall be agreed between the system integrator and the
manufacturer.
5.7 Nameplate
Design of the nameplate shall be according to EN 61287-1 and shall include the following additional
information:
– function of the converter including type code according 4.2;
– rated values (e.g. power, voltage, frequency, …).
The nameplate in the requested languages by the customer shall be screwed or riveted on the
auxiliary converter equipment.
5.8 Documentation
All documentation shall be in accordance with EN 61287-1:2006, 4.1.3.

6 Electrical Interfaces
6.1 Electric power interface of the auxiliary power converter
6.1.1 Electric input interface
The requirements for the parameters of the input power interface of the auxiliary power converter are
defined in Table 7. The classes are according to the definitions in Clause 4.
Table 7 – Specification of input power interface
Class Parameter Requirement Remark
TRAF Rated r.m.s. voltage Typically 350 V to 400 V Range of secondary voltage of the
auxiliary winding
Rated frequency 16,7 Hz or 50 Hz According to EN 50163
Voltage tolerance According to EN 50163 Static and dynamic voltage
tolerances shall be agreed between
the system integrator and the
manufacturer including e.g.
additional voltage drop over
common input impedance.
Frequency tolerance According to EN 50163
Displacement power > 0,95 for P ≥ 0,2 x P
n
factor (DPR)
For small power levels exceptions
to be agreed between system
integrator and manufacturer.
Input transformer Project-dependent Shall be agreed between the
impedance system integrator and the
manufacturer
EMC requirements According to EN 50121-3-2 Consideration of EMC emissions
Signalling compatibility According to EN 50238 Shall be agreed between the
requirements system integrator and the
manufacturer
Line voltage stability According to EN 50388 Shall be agreed between the
requirements system integrator and the
manufacturer
DCLT Rated DC voltage Typically 750 V to 3 600 V According to DC link of the traction
converter
Voltage tolerance Project-dependent Static and dynamic voltage
tolerances shall be agreed between
the system integrator and the
manufacturer including e.g.
additional voltage drop over
common input impedance.
Interface impedance Project-dependent Shall be agreed between the
and interactions system integrator and the
manufacturer
EMC requirements According to EN 50121-3-2 Consideration of EMC emissions
Signalling compatibility According to EN 50238 Shall be agreed between the
requirements system integrator and the
manufacturer
– 19 – CLC/TS 50535:2010
Table 7 – Specification of input power interface (continued)
Class Parameter Requirement Remark
DCCA Rated DC voltage 1 500 V According to EN 50163
3 000 V
Voltage tolerance according to EN 50163 Static and dynamic voltage
tolerances shall be agreed between
the system integrator and the
manufacturer including e.g.
additional voltage drop over
common input impedance.
Input impedance and Project-dependent Shall be agreed between the
interactions system integrator and the
manufacturer
EMC requirements According to EN 50121-3-2 Consideration of EMC emissions
Signalling compatibility According to EN 50238 Shall be agreed between the
requirements system integrator and the
manufacturer
AC 1 000 V 16,7 Hz or 50 Hz
RIC Rated voltage and According to Annex A
frequency
AC 1 500 V 50 Hz
DC 1 500 V
DC 3 000 V
Voltage tolerance According to Annex A
Frequency tolerance According to Annex A
Input impedance and Project-dependent Shall be agreed between the
interactions system integrator and the
manufacturer
EMC requirements According to EN 50121-3-2 Consideration of EMC emissions
Signalling compatibility According to EN 50238 Shall be agreed between the
requirements system integrator and the
manufacturer
Line voltage stability According to EN 50388 Shall be agreed between the
requirements system integrator and the
manufacturer
Typically 600 V to 800 V
DCLA Rated voltage DC-Link of auxiliary power
converter
For values above 800 V the DC
stability of the used power
semiconductors shall be confirmed.
Project-dependent
Voltage tolerance Static and dynamic voltage
tolerances shall be agreed between
the system integrator and the
manufacturer including e.g.
additional voltage drop over
common input impedance.
Project-dependent
Interface impedance Shall be agreed between the
and interactions system integrator and the
manufacturer
6.1.2 Electric output interface (3 AC FF and 3 AC VF)
The requirements for the parameters of the output power interface of the auxiliary power converter are
defined in Table 8.
Table 8 – Specification of output 3 AC voltage
Parameter Requirement Remark
Type A Type B
Rated values
Voltage Line-to-Line 400 V 480 V Fundamental r.m.s. value
Voltage Phase to Neutral 230 V n.a. Fundamental r.m.s. value
Only applicable to
3 AC FF 400 V + N
Frequency for 3 AC FF 50 Hz 60 Hz
Voltage and Frequency range 200 V to 400 V 240 V to 480 V The frequency range shall be
for 3 AC VF agreed with system integrator and
25 Hz to 50 Hz 30 Hz to 60 Hz
manufacturer and with the auxiliary
load suppliers in regards of multiple
issues, like lubrication, mechanical
resonances, cooling, etc.
The voltage / frequency ratio
should be kept constant
Output power Project-dependant Items should be agreed between
system integrator and
manufacturer, for winter and
summer conditions:
– converter ambient
temperatures;
– rated apparent power (kVA);
– rated power (kW);
– power factor;
– rated current;
– list of loads including duties
and starting sequence.
A process to define above require-
ments can be found in IEEE 1476.
Static tolerances and characteristics
Voltage tolerance + 10 % / - 5 % Of rated voltage value:
– line-to-line and
– line-to-neutral, if applicable
For normal operation at 0 % to
100 % rated current
+ 10 % / - 30 % For overload operation above
100 % of rated current up to the
defined short-time output current
Frequency tolerance ± 2 % Of rated value
Allowed output current 10 % of rated output current Difference between any two phase
unbalance currents in relation to the rated
current
Voltage unbalance ± 2 % sliding average over 10 min According EN 50533
± 5 % instantaneous
– 21 – CLC/TS 50535:2010
Table 8 – Specification of output 3 AC voltage (continued)
Parameter Requirement Remark
Type A Type B
TDR of the voltage
≤ 8 % with 100 % linear loads According EN 50533
TDR related to rated voltage
≤ 10 % with 10 % non-linear loads,

i.e. 6-pulse diode rectifier with

infinite DC choke or active front-

end converters
In case of use of non-linear loads
If the total of non-linear loads
of different kind or higher power
connected to the auxiliary power
rating, the system integrator shall
converters is above 10 % of
analyze how the defined
nominal power, the following
requirements will be met.
harmonic current limits shall not be

exceeded by the connected loads:
– THD of current: ≤ 8 %;
Suppliers of auxiliary loads shall
provide for agreed operational
– I = nominal fundamental
conditions system interface
current of connected load;
characteristics for their products,
– I and I    ≤ 7,0 % of I ;
5 7 1
e.g. harmonic current content.
– I and I   ≤ 3,5 % of I ;
11 13 1
– I and I   ≤ 2,5 % of I ;
17 19 1
– I and I   ≤ 1,0 % of I ;
23 25 1
– I above I25  ≤ 0,5 % of I .
v 1
Dynamic characteristics – Start-up
Start-up methods of the train Method 1: Establish nominal Selection of method depends on
line voltage voltage and frequency before AC load characteristics and system
connecting auxiliary converter to architecture (e.g. parallel operation
train line of auxiliary converters).
Method 2: Fixed frequency with Dynamic voltage reduction may
voltage ramp occur in case of current limitation).
Duration of voltage ramp 5 s max. In normal operation mode (without
current limitation)
Dynamic characteristics – load steps
Dynamic voltage variations
± 40 % up to 0,1 s
- 30 % / + 25 % up to 1 s For any load steps, i.e. from 0 % to
100 % or 100 % to 0 %.
Rate of rise of and relevant ≤ 10 V/µs Line-to-line voltage
voltage amplitudes
Line to starpoint voltage
≤ 10 V/µs
DCLA L1
≤ 250 V/µs Line-to-earth voltage and
L2
DC
starpoint-to-earth
AC
L3
Line-to-earth voltage and
≤ 1 000 V peak
starpoint-to-earth
Starpoint
Remark: 250 V/µs corresponds to
PE
Earth
typically 3 µs rise time, which limits

overvoltage at motor terminals.

Table 8 – Specification of output 3 AC voltage (continued)
Parameter Requirement Remark
Type A Type B
Short-time output current 130 % to 200 % of rated current for Rated current is r.m.s. value
5 s
Current rating shall allow t
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