SIST EN 50463-2:2018

SLOVENSKI STANDARD
01-januar-2018
1DGRPHãþD
SIST EN 50463-2:2013
Železniške naprave - Merjenje energije na vlaku - 2. del: Merjenje energije
Railway applications - Energy measurement on board trains - Part 2: Energy measuring
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen - Teil 2: Energiemessung
Applications ferroviaires - Mesure d'énergie à bord des trains - Partie 2 : Mesure
d'énergie
Ta slovenski standard je istoveten z: EN 50463-2:2017
ICS:
45.060.10 9OHþQDYR]LOD Tractive stock
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50463-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 45.060.10 Supersedes EN 50463-2:2012
English Version
Railway applications - Energy measurement on board trains -
Part 2: Energy measuring
Applications ferroviaires - Mesure d'énergie à bord des Bahnanwendungen - Energiemessung auf Bahnfahrzeugen
trains - Partie 2 : Mesure d'énergie - Teil 2: Energiemessung
This European Standard was approved by CENELEC on 2017-05-08. 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, Serbia, 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
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50463-2:2017 E
Contents Page
European foreword . 7
Introduction . 8
1 Scope .11
2 Normative references .12
3 Terms, definitions, abbreviations and symbols .13
3.1 Terms and definitions .13
3.2 Abbreviations .16
3.3 Symbols .17
4 Requirements .17
4.1 General .17
4.2 Energy Measurement Function (EMF) .18
4.2.1 General .18
4.2.2 Electrical requirements .18
4.2.3 Accuracy requirements .19
4.2.4 Traction system change .21
4.2.5 Re-verification .21
4.3 Sensors .21
4.3.1 General .21
4.3.2 General requirements .22
4.3.3 Voltage sensors .23
4.3.4 Current sensors .28
4.4 Energy Calculation Function (ECF) .34
4.4.1 General .34
4.4.2 General requirements .34
4.4.3 Electrical requirements .36
4.4.4 Accuracy requirements .37
4.4.5 Effect of temperature on error limits .38
4.4.6Limits of additional error due to influence quantities.41
4.4.7 Electromagnetic compatibility .43
4.4.8 Data transfer from ECF to DHS .44
5 Conformity assessment .45
5.1 General .45
5.1.1 Introduction .45
5.1.2 Applicability .45
5.1.3 Methodology .45
5.2 Testing framework .46
5.2.1 General .46
5.2.2 Reporting .46
5.3 Design review .47
5.3.1 General .47
5.3.2 Device design review .47
5.3.3 EMF design review .48
5.4 Type testing .48
5.4.1 General .48
5.4.2 Common type testing .48
5.4.3 Sensor type test .52
5.4.4 ECF type test .59
5.5 Routine test .70
5.5.1 General .70
5.5.2 Visual Inspection .70
5.5.3 Insulation test .70
5.5.4 Accuracy tests .71
Annex A (normative) Test with magnetic induction of external origin .73
A.1 General .73
A.2 Test method 1 .73
A.3 Test method 2 .73
Annex B (normative) EMF Configurations .75
B.1 Background .75
B.2 General .75
B.3 EMF with several CMF’s in parallel .75
B.4 EMF with several VMF’s connected to one ECF .76
B.5 EMF with several pairs of VMF and CMF .76
B.6 Several EMF’s in parallel .77
B.7 One VMF or CMF connected to several ECFs .77
B.8 EMF without VMF .78

Annex C (informative) Expressing EMF accuracy .79
C.1 Summary .79
C.2 Error limits or uncertainty .79
C.3 Presentation of error limits .79
C.4 Uncertainty calculations .80
C.4.1 AC active power .80
C.4.2 Primary values .81
C.4.3 Uncertainty in the measurement of active power (Watts) .81
C.4.4 Relative uncertainty .82
C.4.5 Uncertainty in the measurement of reactive power (var) .83
C.4.6 Relative uncertainty .84
Annex D (informative) Recommendations for re-verification and defining of its regime .85
D.1 Re-verification .85
D.1.1 Introduction and background.85
D.1.2 Approaches to re-verification.85
D.2 Recommendations for defining the re-verification regime .86
D.2.1 General approach .86
D.2.2 Testing regime .87
Annex E (informative) Durability test .88
E.1 General .88
E.2 Initial measurements .88
E.3 Conditioning .88
E.4 Intermediate measurements .89
E.5 Final temperature ramp .90
E.6 Final measurements and acceptance criteria .90
E.7 Information to be given in the test report .90
Annex ZZ (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2008/57/EC .92
Bibliography . 93

Figures
Figure 1 — EMS functional structure and dataflow diagram .10
Figure 2 — EMF functional block diagram.11
Figure 3 — Example of energy index value .14
Figure 4 — Example of maximum percentage error for a VMF of class 0,5 R and a VMF of class
1,0 R with input signal in the range U ≤ U ≤ U .26
min1 max2
Figure 5 — Example of maximum percentage error for a CMF class 1,0 R AC with input signals
in the range 10 % I ≤ I ≤ 120 % I , 5 % I ≤ I < 10 % I and 1 % I ≤ I < 5 % I .32
n n n n n n
Figure 6 — Primary current and voltage ranges .38
Figure 7 — Example of maximum percentage error for an ECF of class 0,5 R and an ECF of
class 1,0 R with input signals in Area 1 and Area 2 .40
Figure 8 — Test point matrix for ECF accuracy tests (type test) .61
Figure 9 — Test point matrix for tests of ambient temperature variation and influence quantities62
Figure 10 — Test circuit diagram for determining the influence on accuracy of odd harmonics
or sub-harmonics in the current circuit .65
Figure 11 — Phase-fired waveform (shown for 50 Hz) .65
Figure 12 — Analysis of harmonic content of phase-fired waveform (shown for 50 Hz) .66
Figure 13 — Burst fire waveform (shown for 50 Hz) .66
Figure 14 — Analysis of harmonics (shown for 50 Hz) .67
Figure 15 — Test point matrix for ECF Accuracy Tests (type test) .72
Figure A.1 — Test configuration for test method 1 .73
Figure A.2 — Test configuration for test method 2 .74
Figure B.1 — EMF with several CMF’s in parallel .75
Figure B.2 — EMF with several VMF’s connected to one ECF .76
Figure B.3 — EMF with several pairs of VMF and CMF .77
Figure B.4 — EMF with several ECF’s .77
Figure B.5 — One VMF connected to two ECF’s .78
Figure B.6 — EMF without VMF .78

Tables
Table 1 — Nominal traction system voltages .19
Table 2 — Reference conditions .20
Table 3 — EMF percentage error limits .21
Table 4 — Percentage error limits - VMF .25
Table 5 — Maximum percentage error for a VMF including ambient temperature variation .26
Table 6 — Temperature coefficient for VMF .27
Table 7 — Influence quantities for voltage sensors .28
Table 8 — Percentage error limits — AC CMF .30
Table 9 — Percentage error limits – DC CMF .30
Table 10 — Maximum percentage error for a CMF including ambient temperature variation .31
Table 11 — Temperature coefficient for CMF .32
Table 12 — Percentage error limits with harmonics — AC current sensor .33
Table 13 — Influence quantities for current sensors .33
Table 14 — Variations due to short-time overcurrents .37
Table 15 — Variations due to self-heating .37
Table 16 — ECF percentage error limits for active energy .38
Table 17 — Maximum percentage error for an ECF including ambient temperature variation .39
Table 18 — Temperature coefficient for the ECF .40
Table 19 — Influence quantities for the ECF .42
Table 20 — Test current for harmonics .54
Table ZZ.1 — Correspondence between this European Standard, the TSI “Locomotives and
Passenger Rolling Stock” (REGULATION (EU) No 1302/2014 of 18 November 2014) and
Directive 2008/57/EC amended by Directive 2011/18/EU .92

European foreword
This document (EN 50463-2:2017) has been prepared by CLC/TC 9X “Electrical and electronic
applications for railways”.
The following dates are fixed:
• latest date by which this document has (dop) 2018-04-06
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-10-06
standards conflicting with this document
have to be withdrawn
This document supersedes EN 50463-2:2012.
EN 50463-2:2012:
— updated requirements for events, quality codes, flags and logs (Clause 4);
— updated for consistency between Table 16 and Figure 6 regarding “Area 2” (Clause 4).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
This document is Part 2 of the EN 50463 series which consists of the following parts, under the
common title Railway applications — Energy measurement on board trains:
— Part 1: General;
— Part 2: Energy measuring;
— Part 3: Data handling;
— Part 4: Communication;
— Part 5: Conformity assessment.
This series of European Standards follows the functional guidelines description in
EN ISO/IEC 17000:2004, Annex A “Principles of conformity assessment”, tailored to the Energy
Measurement System (EMS).
The requirements for Energy Measurement Systems in the relevant Technical Specifications for
Interoperability are supported by this series of European Standards.
Introduction
The Energy Measurement System provides measurement and data suitable for billing and may also
be used for energy management, e.g. energy saving.
This series of European Standards uses the functional approach to describe the Energy Measurement
System and on-ground Data Collecting System. These functions are implemented in one or more
physical devices. The user of this series of standards is free to choose the physical implementation
arrangements.
a) Structure and main contents of the EN 50463 series:
This series of European Standards is divided into five parts. The titles and brief descriptions of
each part are given below:
1) EN 50463-1 — General:
The scope of EN 50463-1 is the Energy Measurement System (EMS).
EN 50463-1 provides system level requirements for the complete EMS and common
requirements for all devices implementing one or more functions of the EMS.
2) EN 50463-2 — Energy measuring:
The scope of EN 50463-2 is the Energy Measurement Function (EMF).
The EMF provides measurement of the consumed and regenerated active energy of a
traction unit. If the traction unit is designed for use on AC traction systems, the EMF also
provides measurement of reactive energy. The EMF provides the measured quantities via an
interface to the Data Handling System.
The EMF consists of the three functions: Voltage Measurement Function, Current
Measurement Function and Energy Calculation Function. For each of these functions,
accuracy classes are specified and associated reference conditions are defined. This part
also defines all specific requirements for all functions of the EMF.
The Voltage Measurement Function measures the voltage of the Contact Line system and
the Current Measurement Function measures the current taken from and returned to the
Contact Line system. These functions provide signal inputs to the Energy Calculation
Function.
The Energy Calculation Function inputs the signals from the Current and Voltage
Measurement Functions and calculates a set of values representing the consumed and
regenerated energies. These values are transferred to the Data Handling System and are
used in the creation of Compiled Energy Billing Data (CEBD).
The standard has been developed taking into account that in some applications, the EMF
may be subjected to legal metrological control. All relevant metrological aspects are covered
in this part of EN 50463.
EN 50463-2 also defines the conformity assessment of the EMF.
3) EN 50463-3 — Data handling:
The scope of EN 50463-3 is the Data Handling System (DHS) and the associated
requirements of Data Collecting System (DCS).
The on board DHS receives, produces and stores data, ready for transmission to any
authorized receiver of data on board or on ground. The main goal of the DHS is to produce
Compiled Energy Billing Data and transfer it on an interoperable basis to an on-ground Data
Collecting System (DCS). The DHS can support other functionality on board or on-ground
with data, as long as this does not conflict with the main goal.
The DCS on-ground receives Compiled Energy Billing Data and transfer it to settlement
system.
EN 50463-3 also defines the conformity assessment of the DHS and for the transfer of CEBD
to an on-ground Data Collecting System (DCS).
4) EN 50463-4 — Communication:
The scope of EN 50463-4 is the communication services.
This part of EN 50463 gives requirements and guidance regarding the data communication
between the functions implemented within EMS as well as between such functions and other
on board units where data are exchanged using a communications protocol stack over a
dedicated physical interface or a shared network.
It includes the reference to the on board to ground communication service and covers the
requirements necessary to support data transfer between DHS and DCS including the
transfer of CEBD on an interoperable basis.
EN 50463-4 also defines the conformity assessment of the communications services.
5) EN 50463-5 — Conformity assessment:
The scope of EN 50463-5 is the conformity assessment procedures for the EMS.
EN 50463-5 also covers re-verification procedures and conformity assessment in the event of
the replacement of a device of the EMS.
b) EMS functional structure and dataflow:
Figure 1 illustrates the functional structure of the EMS, the main sub-functions and the structure of
the dataflow and is informative only. Only the main interfaces required by this standard are
displayed by arrows.
Since the communication function is distributed throughout the EMS, it has been widely omitted
for clarity, except for the train to ground communication. Not all interfaces are shown.
Figure 1 — EMS functional structure and dataflow diagram
1 Scope
This European Standard covers the requirements applicable to the Energy Measurement Function
(EMF) of an Energy Measurement System (EMS) for use on board traction units for measurement of
energy supplied directly from/to the Contact Line system.
This European Standard also gives requirements for the Current Measurement Function (e.g. current
sensor), the Voltage Measurement Function (e.g. voltage sensor) and the Energy Calculation Function
(e.g. energy meter).
The Conformity Assessment arrangements for the Voltage Measurement Function, Current
Measurement Function, the Energy Calculation Function and a complete Energy Measurement
Function are also specified in this document.
The standard has been developed taking into account that in some applications the EMF can be
subjected to legal metrological control. All relevant metrological aspects are covered in this part.
Figure 2 shows the flow between the functional blocks of the EMF. Only connections between the
functional blocks required by this standard are displayed.

Figure 2 — EMF functional block diagram
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.
EN 45545-2:2013+A1:2015, Railway applications — Fire protection on railway vehicles — Part 2:
Requirements for fire behaviour of materials and components
EN 45545-5:2013+A1:2015, Railway applications — Fire protection on railway vehicles — Part 5: Fire
safety requirements for electrical equipment including that of trolley buses, track guided buses and
magnetic levitation vehicles
EN 50121-1:2017, Railway applications — Electromagnetic compatibility — Part 1: General
EN 50121-3-2:2015, Railway applications — Electromagnetic compatibility — Part 3-2: Rolling stock -
Apparatus
EN 50123-1:2003, Railway applications — Fixed installations — D.C. switchgear — Part 1: General
EN 50124-1:2001, Railway applications — Insulation coordination — Part 1: Basic requirements —
Clearances and creepage distances for all electrical and electronic equipment
EN 50125-1:2014, Railway applications — Environmental conditions for equipment — Part 1: Rolling
stock and on-board equipment
EN 50155:2017, Railway applications — Rolling stock — Electronic equipment
EN 50163:2004, Railway applications — Supply voltages of traction systems (IEC 60850:2000, not
equivalent)
EN 50388:2012, Railway Applications — Power supply and rolling stock — Technical criteria for the
coordination between power supply (substation) and rolling stock to achieve interoperability
EN 50463-1:2017, Railway applications — Energy measurement on board trains — Part 1: General
EN 50463-3:2017, Railway applications — Energy measurement on board trains — Part 3: Data
handling
EN 50463-4:2017, Railway applications — Energy measurement on board trains — Part 4:
Communication
EN 50463-5:2017, Railway applications — Energy measurement on board trains — Part 5: Conformity
assessment
EN 60044 (all parts), Instrument transformers (IEC 60044, all parts)
EN 60068-2-1:2007, Environmental testing — Part 2-1: Tests — Test A: Cold (IEC 60068-2-1:2007)
EN 60068-2-2:2007, Environmental testing — Part 2-2: Tests — Test B: Dry heat (IEC 60068-2-
2:2007)
EN 60068-2-30:2005, Environmental testing — Part 2-30: Tests — Test Db: Damp heat, cyclic (12 h +
12 h cycle) (IEC 60068-2-30:2005)
EN 60077-4:2003, Railway applications — Electric equipment for rolling stock — Part 4:
Electrotechnical components — Rules for AC circuit-breakers (IEC 60077-4:2003)
EN 60085:2008, Electrical insulation — Thermal evaluation and designation (IEC 60085:2007)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN 61000 (all parts), Electromagnetic compatibility (EMC) (IEC 61000, all parts)
EN 61373:2010, Railway applications — Rolling stock equipment — Shock and vibration tests
(IEC 61373:2010)
EN 61869-3:2011, Instrument transformers — Part 3: Additional requirements for inductive voltage
transformers (IEC 61869-3:2011)
IEC 60028:1925, International standard of resistance for copper
IEC 60121:1960, Recommendation for commercial annealed aluminium electrical conductor wire
3 Terms, definitions, abbreviations and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50463-1:2017 and the
following apply.
Note 1 to entry: When possible, the following definitions have been taken from the relevant chapters of the
International Electrotechnical Vocabulary (IEV), IEC 60050–311, IEC 60050–312, IEC 60050–313, IEC 60050–
314, IEC 60050–321 and IEC 60050–811. In such cases, the appropriate IEV reference is given. Certain new
definitions or modifications of IEV definitions have been added in this standard in order to facilitate understanding.
Expression of the performance of electrical and electronic measuring equipment has been taken from EN 60359.
3.1.1
accuracy class
designation that identifies a set of error limits for measured quantities under reference conditions and
the additional percentage errors due to influence quantities
Note 1 to entry: An individual accuracy class is associated with each metrological function of the EMF.
Note 2 to entry: The suffix “R” is used to differentiate classes according to this standard from other technical
standards.
3.1.2
consumed active energy
active energy taken from the Contact Line by the traction unit on which the EMF is installed
3.1.3
consumed reactive energy
reactive energy taken from the Contact Line by the traction unit on which the EMF is installed
3.1.4
electronic sensor
device in which electronic circuits are used to process a measured signal
Note 1 to entry: Electronic circuits for processing the measurement signal include items such as analogue to
digital converters, signal amplifiers, etc.
3.1.5
energy delta value
energy consumed and/or regenerated during a time period
Note 1 to entry: See Figure 3 for example.
3.1.6
energy index value
total accumulated energy consumption and/or energy regeneration at the end of a time period
Note 1 to entry: See Figure 3 for example.
2350 2360 2372 2379 2393 2404
energy index value:
10 12 7 14 11
energy delta value:
Timeline:
10:35 10:40 10:45 10:50 10:55 11:00

Figure 3 — Example of energy index value
3.1.7
flag
code indicating information relevant to the functioning of the EMS
Note 1 to entry: Examples include operational status, etc.
3.1.8
index value overrun
return to zero of the index value after reaching the maximum value allowed by the register
3.1.9
influence quantity
external condition which affects metrological performance
3.1.10
k-factor
multiplicand necessary to convert a secondary value into a primary value
Note 1 to entry: Each Voltage Measurement Function and/or Current Measurement Function can have a
specific k-factor. If the k-factor is applied to Energy Data, this factor is the product of the k-factors of the Voltage
Measurement Function and/or Current Measurement Function used.
3.1.11
percentage error
value given by the following formula:
measured quantity−true quantity
Percentage error ×100
true quantity
Note 1 to entry: Since the true quantity cannot be determined, it is approximated by a quantity with a stated
uncertainty that can be traced to standards agreed upon between supplier and purchaser or to national standards.
=
3.1.12
phase influence function
function of the real or apparent phase angle between a measured voltage and a measured current
Note 1 to entry: Phase influence function expressed as a Power Factor refers to measurements of real and
apparent powers and energies, while sin φ refers to reactive powers and energies.
Note 2 to entry: For DC measurements the requirements for a phase influence function of 1 need to be used.
3.1.13
Power Factor (cos φ)
PF
ratio of the absolute value of the active power P to the apparent power S
[SOURCE: IEC 60050-131:2002, IEV 131-11-46, modified — The original definition was shortened
and the original NOTE was not reproduced here.]
3.1.14
primary value
value referred to the measuring inputs of an EMF
3.1.15
rated continuous thermal current
I
CMF,cth
value of current which can be permitted to flow continuously into the primary input of a current sensor
3.1.16
rated dynamic current
I
CMF,dyn
peak value of the primary current which a current sensor will withstand without being damaged
3.1.17
rated primary current of the EMF
I
n,EMF
value of current which is used to define the relevant performance of the EMF
Note 1 to entry: The term current refers to rms-value for AC unless otherwise specified.
3.1.18
rated primary voltage of the EMF
U
n,EMF
value of voltage which is used to define the relevant performance of the EMF
Note 1 to entry: The term voltage refers to rms-value for AC unless otherwise specified.
3.1.19
rated short-time thermal current
I
CMF,th
value of the primary current which a current sensor will withstand for a specified time period without
being damaged
3.1.20
rated traction unit current
maximum current that the traction unit is designed to draw from the Contact Line when operating
under normal conditions and with a voltage in the range from U to U according to EN 50163
min1 max2
3.1.21
reference conditions
set of influence quantities, with reference values and tolerances, with respect to which the error limits
are specified for an input quantity range
[SOURCE: IEV 311-06-02, modified — The wording of the definition was fully modified.]
3.1.22
regenerated active energy
active energy fed back into the Contact Line by the traction unit on which the EMF is installed
3.1.23
regenerated reactive energy
reactive energy fed back into the Contact Line by the traction unit on which the EMF is installed
3.1.24
register
electronic device which stores the information representing the measured energy and associated
quality code
Note 1 to entry: Registers can also be accessed and displayed locally via a service tool and if available via a
local display.
[SOURCE: IEC 60050-314:2001, IEV 314-07-09, modified]
3.1.25
response time
t
S,r
duration between the instant of a step change in the measured quantity and the instant when the
output signal reaches 90 % of the intended value
3.1.26
secondary value
value of current, voltage, power or energy which is equal to a primary value when multiplied by a
specific k-factor
3.1.27
temperature coefficient
ratio between the temperature change and the resulting change in measurement error
3.1.28
time period
period of time for which energy data is produced
3.1.29
Time Reference Period
TRP
period of time for which CEBD is produced
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
CEBD Compiled Energy Billing Data
CMF Current Measurement Function
DHS Data Handling System
ECF Energy Calculation Function
EMF Energy Measurement Function
EMS Energy Measurement System
EUT Equipment under test
PF Power Factor
RAMS Reliability, Availability, Maintenance and Safety
TRP Time Reference Period
VMF Voltage Measurement Function
3.3 Symbols
For the purposes of this document, the following symbols apply.
fa maximum frequency without aliasing
f
n rated frequency
ICMF,cth rated continuous thermal current
ICMF,dyn rated dynamic current
I rated short-time thermal current
CMF,th
I
n,CMF rated primary current of the CMF
In,ECF rated primary current of the ECF
I
n,EMF rated primary current of the EMF
ts,r response time
Umax1 highest permanent voltage according to EN 50163
U highest non permanent voltage according to EN 50163
max2
U
max3 highest long term overvoltage according to EN 50163
Umin1 lowest permanent voltage according to EN 50163
U
min2 lowest non permanent voltage according to EN 50163
Un, rated primary voltage of the EMF
EMF
Un,VMF rated primary voltage of the VMF
ε maximum percentage (ratio) error allowed in accordance with the selected accuracy class for
CMF
the CMF
ε maximum percentage error allowed in accordance with the selected accuracy class for the
ECF
ECF
ε calculated maximum percentage error of the EMF
EMF
εVMF maximum percentage (ratio) error allowed in accordance with the selected accuracy class for
the VMF
4 Requirements
4.1 General
The requirements in EN 50463-1:2017, Clause 4, apply to any device containing one or more
functions of the Energy Measurement Function (EMF), where applicable. EN 50463-2 defines
additional requirements for a complete EMF and to any device comprising one or more functions of
the EMF.
4.2 Energy Measurement Function (EMF)
4.2.1 General
4.2.1.1 Introduction
The Energy Measurement Function (EMF) is made up of the following functions, which can be
contained in one or more devices:
• Voltage Measurement Function (VMF);
• Current Measurement Function (CMF);
• Energy Calculation Function (ECF).
NOTE 1 In this document, the voltage sensor and current sensor are used as terms for the device
implementing measurement functions. It is possible that one or more devices may be used to fulfil the role of one
function. It is also possible that different functions are combined in one device.
NOTE 2 Multiple CMFs and VMFs can be used with a single ECF (see Annex B).
The purpose of the EMF is to measure the voltage and current, calculate the energy and produce
energy data.
The EMF provides energy data through an interface to the Data Handling System (DHS).
4.2.1.2 General requirements
If functions are grouped together in a single device, such grouping shall not degrade the performance
(including accuracy) of the system.
4.2.1.3 Marking of the EMF
Devices containing the EMF will have the marking as specified in EN 50463-1:2017, 4.3.1.1. In
addition, all devices that include functions which are subject to legal metrological control shall include
a metrological mark.
If different functions are included in one device marking need not to be duplicated.
4.2.1.4 Essential information
For all devices containing the EMF the essential information as specified in EN 50463-1:2017, 4.3.1.2
shall be available in a format (e.g. hardcopy or electronic) agreed between supplier and purchaser.
The k-factor of the EMF shall also be stated.
NOTE Further requirement regarding the additional information requirement for sensors and the ECF can be
found in 4.3.2.4 and 4.4.2.5 of this standard.
4.2.2 Electrical requirements
4.2.2.1 Rated voltages
The characteristics of the voltage systems to which the EMF can be connected are specified in
EN 50163.
The rated primary voltage of the EMF (U ) shall be equal to the nominal voltage of the traction
n,EMF
system as detailed in EN 50163 and listed in Table 1.
Table 1 — Nominal traction system voltages
Nominal voltages
U
n
System
V
25 000 50 Hz AC
15 000 16,7 Hz AC
3 000 DC
1 500 DC
750 DC
600 DC
If the EMF is designed to be used on more than one traction system it shall have a rated primary
voltage assigned for each traction system.
4.2.2.2 Rated current
The standard values of rated primary current of the EMF (I ) are:
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