EN 50152-3-2:2016

SLOVENSKI STANDARD
01-april-2017
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Railway applications - Fixed installations - Particular requirements for a.c. switchgear -
Part 3-2: Measurement, control and protection devices for specific use in a.c. traction
systems - Current transformers
Bahnanwendungen - Ortsfeste Anlagen - Besondere Anforderungen an Wechselstrom-
Schalteinrichtungen - Teil 3-2: Meß-, Steuerungs- und Schutzeinrichtungen für
Wechselstrom-Bahnanlagen - Einphasen-Stromwandler
Applications ferroviaires - Installations fixes - Exigences particulières pour appareillage à
courant alternatif - Partie 3-2: Dispositifs de mesure, de commande et de protection pour
usage spécifique dans les systèmes de traction à courant alternatif - Transformateurs de
courant monophasés
Ta slovenski standard je istoveten z: EN 50152-3-2:2016
ICS:
29.130.99 Druge stikalne in krmilne Other switchgear and
naprave controlgear
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50152-3-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2016
ICS 29.130.20; 29.280 Supersedes EN 50152-3-2:2001
English Version
Railway applications - Fixed installations - Particular
requirements for a.c. switchgear - Part 3-2: Measurement,
control and protection devices for specific use in a.c. traction
systems - Current transformers
Applications ferroviaires - Installations fixes - Spécifications Bahnanwendungen - Ortsfeste Anlagen - Besondere
particulières pour appareillage à courant alternatif - Partie Anforderungen an Wechselstrom-Schalteinrichtungen - Teil
3-2: Dispositifs de mesure, de commande et de protection 3-2: Mess-, Steuerungs- und Schutzeinrichtungen für
pour usage spécifique dans les systèmes de traction à Wechselstrom-Bahnanlagen - Stromwandler
courant alternatif - Transformateurs de courant
This European Standard was approved by CENELEC on 2016-04-25. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50152-3-2:2016 E
Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 6
3.1 Terms and definitions . 6
3.2 Abbreviations . 7
4 Service conditions . 8
5 Rating . 8
5.1 General . 8
5.2 Nominal voltage (U ) . 8
n
5.3 Rated voltage (U ) . 8
Ne
5.4 Insulation coordination . 8
5.4.1 General . 8
5.4.2 Rated insulation level . 8
5.5 Rated frequency . 9
5.6 Rated accuracy classes . 9
6 Design and construction . 9
6.1 General . 9
6.2 Transformer construction . 9
6.3 Requirements for the external insulation . 10
6.4 Electromagnetic compatibility (EMC) . 10
6.5 Nameplates . 10
7 Tests . 10
7.1 General . 10
7.2 Electromagnetic compatibility tests (EMC) . 10
7.3 Partial discharge test . 10
8 Rules for transport, storage, erection, operation and maintenance . 10
9 Safety . 11
10 Influence of the product on the environment . 11
11 Information to be given with enquiries, tenders and orders . 11
Bibliography . 12
Tables
Table 1 - Nominal voltages (U ), rated voltages (U ), rated impulse voltages (U ) and
n Ne Ni
power-frequency withstand voltage (U ) for circuits connected to the contact line . 9
d
Table 2 – Partial discharge test voltages and permissible levels for current transformers
with solid insulation . 10
European foreword
This document (EN 50152-3-2:2016) has been prepared by SC 9XC “Electric supply and earthing systems
for public transport equipment and ancillary apparatus (Fixed installations)” of CLC/TC 9X “Electrical and
electronic applications for railways”.
The following dates are fixed:
• latest date by which the existence of (doa) 2016-10-25
this document has to be announced
at national level
• latest date by which this document has to be (dop) 2017-04-25
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2019-04-25
conflicting with this document have to

be withdrawn
This document supersedes EN 50152-3-2:2001.
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 standard was revised to reflect the latest versions of standards referenced and to remove text already
included in the EN 61869 Series. The structure of the document was adapted to that of EN 50152-1 and
EN 50152-2. Ratings have been added to provide designations in line with other railway standards e.g.
EN 50124. Tests requirements have been detailed to meet operating conditions of railway applications.
Partial discharge voltages have been specified in Table 2.
This standard has to be read in conjunction with EN 61869-1:2009 and EN 61869-2:2012.
Where a particular clause/subclause of EN 61869-2 is not mentioned in this standard, that clause/subclause
applies as far as reasonable. Where requirements relate exclusively to three-phase systems or to voltages
outside those in use in traction systems, they are not applicable. Where this standard states “addition” or
“replacement”, the relevant text of EN 61869-2 is to be adapted accordingly.
The numbering of clauses in EN 61869 Series is similar to that in the EN 50152 Series.
Where terms defined in EN 61869-1 and EN 61869-2 conflict with definitions of the same terms as given in
IEC 60050-811:1991 or of the other railway applications documents listed in the normative references, the
definitions in EN 61869-1 and EN 61869-2 are to be used.
NOTE The suffix N which appears in this standard for rated values is not present in EN 61869–1 and EN 61869–2.
References in subclauses of EN 61869-1 and EN 61869-2 have to be replaced by references to applicable
subclauses in this standard as far as reasonably possible.
EN 50152 Series under the generic title “Railway applications - Fixed installations - Particular requirements
for a.c. switchgear” is divided as follows:
— Part 1: Circuit-breakers with nominal voltage above 1 kV;
— Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV;
— Part 3-1: Measurement, control and protection devices for specific use in a.c. traction systems –
Devices;
— Part 3-2: Measurement, control and protection devices for specific use in a.c. traction systems – Current
transformers;
— Part 3-3: Measurement, control and protection devices for specific use in a.c. traction systems – Voltage
transformers.
1 Scope
This EN 50152-3-2 is applicable to new current transformers which are:
— intended for use in indoor or outdoor fixed installations in tractions systems, and
— operated with an a.c. line voltage and frequency as specified in EN 50163.
NOTE 1 EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz.
NOTE 2 As rails of a.c. traction systems are typically connected to earth and included in the return current path, all
phase to earth voltages are subject to the limits as given in EN 50163. Nevertheless conductor to conductor voltages are
some times higher e.g. in autotransformer systems.
Current transformers are mainly used with:
— measuring instruments,
— protective devices.
This EN 50152-3-2 also applies to current transformers other than inductive types as far as reasonably
possible. Requirements of this EN 50152-3-2 have priority.
NOTE 3 Combined current and voltage transformers are typically not used in fixed installations in traction systems.
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 50121-5:2006, Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of
fixed power supply installations and apparatus
EN 50124-1:2001, Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances
and creepage distances for all electrical and electronic equipment
EN 50125-2:2002, Railway applications - Environmental conditions for equipment - Part 2: Fixed electrical
installations
EN 50152 Series, Railway applications - Fixed installations - Particular requirements for a.c. switchgear
EN 50163:2004, Railway applications - Supply voltages of traction systems
EN 61869-1:2009, Instrument transformers - Part 1: General requirements (IEC 61869-1:2007, mod.)
EN 61869-2:2012, Instrument transformers - Part 2: Additional requirements for current transformers (IEC
61869-2:2012)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms a
...