SIST EN 50463:2008

SLOVENSKI STANDARD
SIST EN 50463:2008
01-februar-2008
Železniške naprave - Merjenje energije na vlaku
Railway applications - Energy measurement on board trains
Bahnanwendungen - Energiemessung auf Bahnfahrzeugen
Applications ferroviaires - Mesure d'énergie a bord des trains
Ta slovenski standard je istoveten z: EN 50463:2007
ICS:
45.060.10
SIST EN 50463:2008 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 50463

NORME EUROPÉENNE
November 2007
EUROPÄISCHE NORM

ICS 45.060.10


English version


Railway applications -
Energy measurement on board trains



Applications ferroviaires -  Bahnanwendungen -
Mesure d'énergie à bord des trains Energiemessung auf Bahnfahrzeugen





This European Standard was approved by CENELEC on 2007-07-01. 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, 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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50463:2007 E

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EN 50463:2007 - 2 -
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 9X, Electrical
and electronic applications for railways.
The text of the draft was submitted to the formal vote and was approved by CENELEC as
EN 50463 on 2007-07-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-07-01
__________

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- 3 - EN 50463:2007
Contents
Introduction. 5
1 Scope. 6
2 Normative references . 6
3 Definitions . 7
3.1 General definitions.8
3.2 Definitions related to the functional elements. 8
3.3 Definitions of mechanical elements . 9
3.4 Definitions of insulations. 10
3.5 Definitions of meter quantities . 11
3.6 Definitions of external factors . 12
4 Requirements. 13
4.1 Standard electrical input values. 13
4.2 Functional requirements.14
4.3 Mechanical requirements.15
4.4 Climatic conditions.17
4.5 Electrical requirements.18
4.6 Electromagnetic compatibility (EMC) . 19
4.7 Accuracy requirements.20
5 Tests and test conditions. 21
5.1 General testing procedures . 21
5.2 Visual inspection.22
5.3 Tests of mechanical requirements. 22
5.4 Tests of climatic influences. 23
5.5 Tests of electrical requirements. 23
5.6 Tests for electromagnetic compatibility (EMC). 24
5.7 Tests of accuracy requirements . 25
Annex A (informative) Block diagram of meter device. 28
Annex B (informative) Test diagrams and configurations - Test circuit diagram for d.c. even
harmonics, odd harmonics and sub-harmonics . 30
Bibliography. 38
Figure B.1 – Test circuit diagram for half-wave rectification . 30
Figure B.2 – Half-wave rectified waveform. 31
Figure B.3 – Informative distribution of half-wave harmonic content
(the Fourier analysis is not complete) . 32
Figure B.4 – Test circuit diagram (informative). 33
Figure B.5 – Phase fired waveform. 34

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EN 50463:2007 - 4 -
Figure B.6 – Informative distribution of harmonic content of phase fired waveform
(the Fourier analysis is not complete) . 34
Figure B.7 – Burst fired waveform. 35
Figure B.8 – Informative distribution of harmonics (the Fourier analysis is not complete). 36
Figure B.9 – Voltage waveform for the tests of the effect of voltage dips
and short interruptions . 37
Table 1 Rated voltages. 13
–
Table 2 – Rated currents. 14
Table 3 – Variations due to short-time overcurrents. 19
Table 4 – Variations due to self-heating. 19
Table 5 – Percentage uncertainty limits . 20
Table 6 – Temperature coefficient over the entire operational temperature range (TX). 20
Table 7 – Reference conditions. 25

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- 5 - EN 50463:2007
Introduction
This European Standard has been prepared using EN 62053 as reference standard. As many
new requirements and tests had to be added, this new standard has been split into five clauses,
namely
1 Scope
2 Normative references
3 Definitions
4 Requirements
5 Tests and test conditions.
For all tests which are not specified in this standard, the existing IEC publications apply.
This standard covers the "standard meter", which may be used for energy metering on board
trains. It does not deal with special features (such as solution with the section that perform the
measure in separate housing respect to display). These might be covered in separate
International Standards.
This standard considers accuracy class 1.
The test levels are regarded as minimum values to ensure the proper functioning of the meter
under normal working conditions. For special application, alternative test levels might be
necessary and should be agreed by the user and the manufacturer.
A static meter faces the same general environmental conditions as the other electronic devices
on board trains. Therefore, the specification will implement all the requirements set by EN 50155
for class TX.
Regarding the influence of harmonics, special test procedures had to be incorporated. These
tests check the functionality of the meter when the meter is exposed to large distortions in the
current circuit and the accuracy of the meter with 5th harmonic in the current and voltage circuit
(see Annex B).
To test accurate operation of the meter under practical conditions have been specified
(see 5.7.2.2):
half-wave rectification (d.c. and even harmonics);
•
• phase-fired control (odd harmonics);
• burst control (sub-harmonics).
To check if a meter accurately measures total energy in the presence of harmonics, a test with
5th harmonic in both the current and voltage circuits has been specified. It is assumed that
correct measurement of 5th harmonic energy indicates that measurement for other harmonics will
be good.
The reliability aspects of equipment for electrical energy measurement and load control will be
handled separately.
For tests and test conditions, existing tests and test levels have been taken from EN 62053 and
IEC or EN standards as appropriate.
The IEC and EN publications referred to in this standard are listed in Clause 2.

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EN 50463:2007 - 6 -
1 Scope
This European Standard applies only to newly manufactured static energy meters of accuracy
class 1, for the measurement on board, of alternating current electrical energy or direct current
electrical energy used for traction applications operating at the following supply voltages:
• 25 kV (single phase) at 50 Hz,
• 15 kV (single phase) at 16,7 Hz,
• 3 kV, 1,5 kV and 0,75 kV d.c.
It applies only to static meters consisting of a measuring element and register(s) enclosed
together in a meter enclosure.
It does not apply to:
a) portable meters;
b) data interfaces with on board systems;
c) data management system;
d) data interfaces with telecommunication system;
e) on-board global measurement systems; additionally, if voltage and current transducers are
considered of accuracy class 0,5. If these transducers are multi-service, specific and
separate outputs will be considered.
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.
CLC/TS 45545-5 2004 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 50121-3-2 2006 Railway applications - Electromagnetic compatibility (EMC) –
Part 3-2: Rolling stock - Apparatus
EN 50155 2001 Railway applications – Electronic equipment used on rolling
stock
EN 50163 2004 Railway applications - Supply voltages of traction systems
EN 55022 2006 Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement
(CISPR 22:2005, mod.)
EN 60085 2004 Electrical insulation - Thermal classification (IEC 60085:2004)

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- 7 - EN 50463:2007
EN 60359 2002 Electrical and electronic measurement equipment - Expression
of performance (IEC 60359:2001)
EN 60387 1992 Symbols for alternating current electricity meters
(IEC 60387:1992)
EN 60514 1995 Acceptance inspection of Class 2 alternating-current watthour
meters (IEC 60514:1975, mod.)
EN 60529 1991 Degrees of protection provided by enclosures (IP Code)
+ corr. May 1993 (IEC 60529:1989)
EN 60870-5-2 - Telecontrol equipment and systems – Part 5-2: Transmission
protocols - Link transmission procedures (IEC 60870-5-2)
EN 60999-1 2000 Connecting devices - Safety requirements for screw-type and
screwless-type clamping units for electrical copper conductors –
Part 1: General requirements and particular requirements for
conductors from 0,5 mm² up to 35 mm² (included)
(IEC 60999-1:1999)
EN 61010-1 - Safety requirements for electrical equipment for measurement,
control and laboratory use – Part 1: General requirements
(IEC 61010-1)
EN 61373 1999 Railway applications – Rolling stock equipment – Shock and
vibration tests (IEC 61373:1999)
EN 62053 Series Electricity metering equipment (a.c.) – Particular requirements
(IEC 62053 series)
EN 62056 Series Electricity metering – Data exchange for meter reading, tariff
and load control (IEC 62056 series)
IEC 60050-300 2001 International Electrotechnical Vocabulary - Electrical and
electronic measurements and measuring instruments –
Part 311: General terms relating to measurements –
Part 312: General terms relating to electrical measurements –
Part 313: Types of electrical measuring instruments –
Part 314: Specific terms according to the type of instrument
IEC/TR 60736 1982 Testing equipment for electrical energy meters
3 Definitions
For the purposes of this European Standard, the following definitions apply.
The majority of the following definitions have been taken from the relevant parts of the
International Electrotechnical Vocabulary (IEV), IEC 60050-311, IEC 60050-312, IEC 60050-313
and IEC 60050-314. 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.

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EN 50463:2007 - 8 -
3.1 General definitions
3.1.1
energy meter
instrument intended to measure electrical energy by integrating power with respect to time
[IEV 313-01-35]
Where the display and/or the memory/ies is/are external or where other elements are enclosed in
the meter enclosure (such as maximum demand indicators, telemetering, time switches or remote
control, etc.) this standard applies only to the metering section
3.1.2
static energy meter
meter in which current and voltage act on solid-state (electronic) elements to produce an output
proportional to energy consumption
3.1.3
meter type
particular design of meter, manufactured by one manufacturer, having:
a) similar metrological properties;
b) the same uniform construction of parts determining these properties;
c) the same ratio of the maximum current to the rated current
NOTE 1 The type may have several values of reference current and reference voltage.
NOTE 2 Meters are designated by the manufacturer by one or more groups of letters or numbers, or a combination of
letters and numbers. Each type has one designation only.
NOTE 3 The type is represented by the sample meter(s) intended for the type tests and whose characteristics (rated
current and reference voltage) are chosen from the values given in the tables proposed by the manufacturer.
[IEV 314-07-07, modified]
3.1.4
transducer
apparatus (or device) in a.c. or d.c. needed for feeding the meter inputs with suitable electrical
quantities
3.2 Definitions related to the functional elements
3.2.1
measuring element
part of the meter which produces an output proportional to the energy
3.2.2
data storage
meter capability to record data
3.2.3
internal messaging
meter capability of generating messages for autodiagnosis functions, alarms and other working
information

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3.2.4
train location data
input data to give the position of the train
3.2.5
local downloading port
optical and/or electrical serial port that is used for local data downloading
3.2.6
on board train system port
port that is used for connecting the meter to the on-board train communication system
3.2.7
test output port
port that is used for testing the meter
3.2.8
operation indicator
device which gives a visible signal of the operation of the meter
[IEV 314-07-13]
3.2.9
current circuit
internal connections of the meter and part of the measuring element through which the current in
to which the meter is connected flows
3.2.10
voltage circuit
internal connections of the meter, part of the measuring element and, in certain meters, also the
power supply for the meter, supplied with the voltage of the circuit to which the meter is
connected
3.2.11
constant
value expressing the relation between the active energy registered by a meter and the
corresponding value of the test output
NOTE If this value is a number of pulses, the constant should be either pulses per kilowatt-hour (imp/kWh) or watt-
hours per pulse (Wh/imp).
[IEV 314-07-08]
3.3 Definitions of mechanical elements
3.3.1
base (of an energy meter)
part on which the meter is generally fixed and to which are attached the measuring element, the
terminals or the terminal block, and the cover
NOTE For a flush-mounted meter, the meter base may include the sides of the enclosure.
[IEV 314-07-14, modified]

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EN 50463:2007 - 10 -
3.3.2
socket
basic element with jaws to accommodate terminals of a detachable watt-hour meter and which
has terminals for connection to the supply line. It may be a single-position socket for one meter or
a multiple-position socket for two or more meters
[IEV 314-07-15, modified]
3.3.3
cover
enclosure for the meter, made either wholly of transparent material or opaque material provided
with window(s) through which the operation indicator and the display (if fitted) can be read
[IEV 314-07-16, modified]
3.3.4
enclosure
comprises the base and the cover
3.3.5
accessible conductive part
refer to EN 61010-1
3.3.6
protective earth terminal
refer to EN 61010-1
3.3.7
terminal block
support made of insulating material on which all or some of the terminals of the meter are
grouped together
[IEV 314-07-18]
3.3.8
terminal cover
cover which covers the meter terminals and, generally, the ends of the external wires or cables
connected to the terminals of the meter. It shall provide a sealing system
[IEV 314-07-19, modified]
3.3.9
clearance and creepage distance
definitions are referred to EN 61010-1
3.4 Definitions of insulations
Refer to EN 61010-1.

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3.5 Definitions of meter quantities
3.5.1
rated current (I )
n
value of current in accordance with which the relevant performance of a transformer (or
transducer) operated meter is set
NOTE  The term current indicates r.m.s. value unless otherwise specified.
[IEV 314-07-02, modified]
3.5.2
maximum current (I )
max
highest value of current at which the meter will meet the accuracy requirements of this standard
NOTE  The term current indicate r.m.s. value unless otherwise specified.
[IEV 314-07-03, modified]
3.5.3
minimum current (I )
min
lowest value of current at which the meter purports to meet the accuracy requirements of this
standard
NOTE  The term current indicate r.m.s. value unless otherwise specified.
3.5.4
U
rated voltage ( )
n
value of the voltage in accordance with which the relevant performance of the meter is set
NOTE  The term voltage indicate r.m.s. value unless otherwise specified.
3.5.5
maximum voltage (U )
max
highest value of voltage at which the meter purports to meet the accuracy requirements of this
standard
NOTE  The term voltage indicates r.m.s. value unless otherwise specified.
3.5.6
minimum voltage (U )
min
lowest value of voltage at which the meter purports to meet the accuracy requirements of this
standard
NOTE  The term voltage indicates r.m.s. value unless otherwise specified.
3.5.7
rated frequency
value of the frequency (for a.c. meters) in accordance with which the relevant performance of the
meter is set
3.5.8
class index
number which gives the limits of the permissible percentage uncertainty for all values of external
factors for specified ranges

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EN 50463:2007 - 12 -
3.5.9
percentage uncertainty
percentage uncertainty is given by the following formula:
energy registered by the meter - true energy
Percentage uncertainty =
X 100
true energy
NOTE  Refer to EN 60359.
3.6 Definitions of external factors
3.6.1
external factors
any quantity, generally external to the meter, which may affect its working performance
3.6.2
reference conditions
appropriate set of external factors and performance characteristics, with reference values, their
tolerances and reference ranges, with respect to which the accuracy class is specified
3.6.3
variation of error due to an external factor
difference between the percentage uncertainty of the meter when only one influence quantity
assumes successively two specified values, one of them being the reference value
3.6.4
distortion factor
ratio of the r.m.s. value of the harmonic content to the r.m.s. value of measured quantity. The
r.m.s. value of the harmonic content can be obtained by the following: substracting from a non
sinusoidal alternating quantity its fundamental term, substracting from a measured quantity its
d.c. term. The distortion factor is usually expressed in percentage
3.6.5
electromagnetic disturbance
conducted or radiated electromagnetic interferences which may affect the operation of the meter
functionally or metrologically
3.6.6
reference temperature
ambient temperature specified for reference conditions
3.6.6.1
mean temperature coefficient
ratio of the variation of the percentage uncertainty to the change of temperature which produces
this variation
3.6.7
rated operating conditions
set of specified measuring ranges for performance characteristics and specified operating ranges
for influence quantities, within which the variations or operating errors of a meter are specified
and determined
3.6.8
specified measuring range
set of values of a measured quantity for which the uncertainty of a meter is intended to lie within
specified limits

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- 13 - EN 50463:2007
3.6.9
specified operating range
range of values of a single external factor which forms a part of the rated operating conditions
3.6.10
limit range of operation
extreme conditions which an operating meter can withstand without damage and without
degradation of its metrological characteristics when it is subsequently operated under its rated
operating conditions
3.6.11
storage and transport conditions
extreme conditions which a non-operating meter can withstand without damage and without
degradation of its metrological characteristics when it is subsequently operated under its rated
operating conditions
3.6.12
thermal stability
thermal stability is considered to be reached when the change in uncertainty as a consequence of
thermal effects is less than 0,1 times the accuracy class for the measurement under
consideration when measured over a period of 20 min
4 Requirements
4.1 Standard electrical input values
4.1.1 Rated voltages
Table 1 – Rated voltages
Meters for Standard values Exceptional values
Connection through voltage
57,7 V – 63,5 V – 100 V – According to manufacturer and
transformer(s) (a.c.)
end-user agreement
110 V – 115 V –

120 V – 200 V
Connection through transducer(s) 5 V – 10 V According to manufacturer and

(d.c.) end-user agreement
(0 – 20) mA, (4 – 20) mA
100 mA – 300 mA

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EN 50463:2007 - 14 -
4.1.2 Rated currents
Table 2 – Rated currents
Meters for Standard values Exceptional values
Connection through current
40 mA – 100 mA – 500 mA According to manufacturer and
transformer(s) (a.c.)
end-user agreement
1 A – 2 A – 5 A
Connection through 0 – 5 V, 0 – 10 V According to manufacturer and

transducer(s)(d.c.) end-user agreement
(0 – 20) mA, (4 – 20) mA
100 mA – 300 mA

4.1.3 Maximum overload current
The meter shall be able to function correctly with a continuous = 1,5 .
I I
max n
4.1.4 Maximum over voltage
The meter shall be able to function correctly with a continuous U = 1,5 U .
max n
4.2 Functional requirements
4.2.1 Input messages and signals
Electrical parameters as voltage and current, time synchronization, train location data (optional),
switching signal (optional).
4.2.2 Output data
• Minimum data: identification code, time-energy, date;
• Optional data: peak power in a defined time, train location-time, continuous or discontinuous
data, autodiagnosis alarms and service messages.
4.2.3 List of interfaces
The following meter interfaces shall be present:
• input parameters,
• output,
• impulses for localization (optional),
local feeding,
•
• local downloading,
output test.
•

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4.2.4 Integration time for energy calculation
The meter shall be capable of recording the load profile choosing among 5 min, 10 min, 15 min
and 1 h.
4.2.5 Data storage
The memory capacity of the meter shall be sufficient to retain 60 days a load profile when
recorded at 5 min interval. Division on memory registers of energy should be possible.
This standard does not cover the acceptance tests and the conformity tests; both kinds of testing
procedures are connected with legal requirements in different Member States and could only be
considered partially. Regarding acceptance tests, a basic guideline is given in EN 60514.
The reliability aspect is covered by other existing standards.
4.2.6 Radio Data Transmission
The meter shall be supplied prepared for data transmission via GSM or GSM-R. For transmission
interfaces, refer to EN 60870-5-2, EN 62056-21, EN 62056-62.
Other solutions are allowed.
4.3 Mechanical requirements
4.3.1 General mechanical requirements
Meters shall be designed and manufactured in such a way as to avoid introducing any danger in
normal use and under normal conditions, so as to ensure especially:
personal safety against electric shock;
•
• personal safety against effects of excessive temperature;
protection against spread of fire;
•
• protection against penetration of solid objects, dust and water.
4.3.2 Enclosure
The meter shall have a enclosure which can be sealed in such a way that the internal parts of the
meter are accessible only after breaking the seal(s).
The cover shall not be removable without the use of a tool.
The enclosure shall be so constructed and arranged that any non-permanent deformation cannot
prevent the satisfactory operation of the meter.
4.3.3 Window
If the cover is not transparent, one or more windows shall be provided for reading the display and
observation of the operation indicator, if fitted. These windows shall be of transparent material
which cannot be removed undamaged without breaking the seal(s).

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EN 50463:2007 - 16 -
4.3.4 Terminals - Terminal block(s)
Refer to EN 60999-1.
4.3.5 Terminal cover(s)
The terminals of a meter, if grouped in a terminal block and if not protected by any other means,
shall have a separate cover which can be sealed independently of the meter cover.
The terminal cover shall enclose the actual terminals, the conductor fixing screws and, unless
otherwise specified, a suitable length of the external conductors and their insulation.
Wh
...