SIST EN 50633:2016
(Main)Railway applications - Fixed installations - Protection principles for AC and DC electric traction systems
Railway applications - Fixed installations - Protection principles for AC and DC electric traction systems
This standard
– defines protection principles,
– describes the railway specific protection functions,
– defines minimum functional requirements and informative examples of their application,
– describe technical limits,
– identify residual risks,
– describes principles for conformity assessment,
for AC and DC electric traction systems.
It applies to
– railways,
– guided mass transport systems, such as tramways, elevated and underground railways, mountain railways, trolleybus systems, and magnetically levitated systems which use a contact line system.
This standard may also be applied to electrified road traffic with contact line, such as truck-trolley systems.
This standard applies to new electric traction systems and to all significant changes of existing systems.
It does not apply to
– underground mine traction systems,
– cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the traction power supply system,
– suspended cable cars,
– funicular railways,
– magnetic levitated systems (without contact line system),
– railways with inductive power supply without contact system,
– railways with buried contact system that is required to be energized only below the train to ensure safety.
This standard does not cover
– technical requirements for products,
– rules for maintenance of protection systems.
Bahnanwendungen - Ortsfeste Anlagen - Schutzprinzipien für Wechselstrom- und Gleichstrom-Bahnenergieversorgungssysteme
Diese Norm
– definiert Schutzprinzipien,
– beschreibt die bahnspezifischen Schutzfunktionen,
– definiert funktionale Mindestanforderungen und informative Beispiele für deren Anwendung,
– beschreibt technische Grenzen,
– identifiziert Restrisiken,
– beschreibt Prinzipien für die Konformitätsbewertung,
für AC und DC Bahnenergieversorgungssysteme.
Diese Europäische Norm gilt für:
– Eisenbahnen;
– spurgeführte Nahverkehrssysteme wie Straßenbahnen, Hoch- und Untergrundbahnen, Berg¬bahnen, Obus-Anlagen und Magnetbahnen die ein Fahrleitungssystem nutzen.
Diese Europäische Norm kann auch für elektrifizierten Straßenverkehr mit Fahrleitung angewendet werden, wie z. B. Elektrifizierter Minenlastkraftwagentransport.
Diese Europäische Norm gilt für alle neuen Bahnenergieversorgungsanlagen und alle größeren Änderungen an vorhandenen Systemen.
Diese Europäische Norm gilt nicht für:
– Grubenbahnen unter Tage;
– Krananlagen, Schiebebühnen u. ä. Transportgeräte auf Schienen, fliegende Bauten (z. B. Schau-stelleranlagen), sofern sie nicht unmittelbar oder über Transformatoren aus Fahrleitungsanlagen gespeist werden und nicht durch das Energieversorgungssystem elektrischer Bahnen gefährdet sind;
– Luftseilbahnen;
– Standseilbahnen;
– Magnetbahnen (ohne Fahrleitungssystem);
– Eisenbahnen mit induktiver Leistungsübertragung ohne Fahrleitungssystem;
– Eisenbahnen mit unterirdischem Fahrleitungssystem, das aus Sicherheitsgründen immer nur unter dem Zug unter Spannung gesetzt wird.
Diese Europäische Norm legt keine Arbeitsvorschriften für Instandhaltungsarbeiten fest.
Diese Europäische Norm deckt nicht ab:
– technische Anforderungen an Produkte,
– Instandhaltungsregeln für Schutzsysteme.
Applications ferroviaires - Installations fixes - Principes de protection pour les réseaux de traction électrique à courant alternatif et à courant continu
La présente Norme européenne s'applique au système de protection électrique qui équipe les réseaux de traction électrique en courant alternatif et en courant continu. Elle:
- établit les principes de protection spécifiques au domaine ferroviaire;
- décrit la fonctionnalité du système de protection spécifique au domaine ferroviaire;
- spécifie les exigences fonctionnelles minimales et les exemples informatifs de leur application;
- établit les limites du système de protection et l'acceptabilité des risques résiduels;
- spécifie les principes d'évaluation de la conformité.
Elle s'applique aux:
- chemins de fer;
- aux réseaux de transport en commun guidés tels que les tramways, les chemins de fer aériens et souterrains, les chemins de fer de montagne, les trolleybus et les systèmes à sustentation magnétique qui utilisent un système de ligne de contact.
La présente Norme européenne peut également être appliquée au trafic routier électrifié avec une ligne de contact (les systèmes de lorry, par exemple).
La présente Norme européenne s'applique également aux nouveaux réseaux de traction électrique et peut être appliquée aux modifications des systèmes existants.
Elle ne s’applique pas aux:
– systèmes de traction miniers souterrains;
- grues, plateformes transportables et matériels de transport similaires sur rails, structures temporaires (dans les foires et expositions, par exemple) dans la mesure où elles ne sont pas alimentées par les lignes de contact, directement ou par des transformateurs, ni affectées par le réseau d'alimentation de traction;
- téléphériques;
- funiculaires;
- systèmes à sustentation magnétique (sans système de ligne de contact);
- chemins de fer équipés d'une alimentation inductive sans système de contact;
- chemins de fer équipés d’un système de contact enterré qui ne doit être alimenté que sous le train afin de garantir la sécurité.
La présente Norme européenne ne couvre pas:
- les exigences techniques pour les produits (les dispositifs de protection, par exemple);
- les règles de maintenance des systèmes de protection.
Železniške naprave - Stabilne naprave električne vleke - Načela zaščite za sisteme izmeničnih ali enosmernih električnih vlek
Ta standard:
– določa načela zaščite;
– opisuje zaščitne funkcije, povezane z železnico;
– določa minimalne funkcionalne zahteve in informativne primere njihove uporabe;
– opisuje tehnične omejitve;
– opredeljuje ostala tveganja;
– opisuje načela za oceno skladnosti za električne sisteme izmeničnih ali enosmernih električnih vlek.
Uporablja se za:
– železnice;
– vodene sisteme javnega prevoza, kot so tramvaji, dvignjene in podzemne železnice, gorske železnice, trolejbusne sisteme in sisteme na magnetni blazini, ki uporabljajo sistem kontaktnega vodnika.
Ta standard se lahko uporablja tudi za elektrificiran cestni promet s kontaktnim vodnikom, na primer za sistem tovornih vozičkov.
Ta standard se uporablja za nove električne vlečne sisteme in za vse bistvene spremembe obstoječih sistemov.
Ne uporablja se za:
– vlečne sisteme za podzemne rudnike;
– žerjave, premične ploščadi in podobno transportno opremo na tirih, začasne konstrukcije (npr. razstavne konstrukcije) pod pogojem, da se ne napajajo neposredno ali prek transformatorjev iz sistema kontaktnega vodnika ter jih ne ogroža vlečni napajalni sistem;
– obešene nihalne žičnice;
– tirne vzpenjače;
– sisteme na magnetni blazini (brez sistema kontaktnega vodnika);
– železnice z induktivnim napajanjem brez kontaktnega sistema;
– železnice s podzemnim kontaktnim sistemom, za katere se zaradi varnostnih razlogov zahteva napajanje tik pod vlakom.
Ta standard ne zajema:
– tehničnih zahtev za proizvode;
– pravil za vzdrževanje sistemov zaščite.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Railway applications - Fixed installations - Protection principles for AC and DC electric traction systems29.280Electric traction equipmentICS:Ta slovenski standard je istoveten z:EN 50633:2016SIST EN 50633:2016en01-september-2016SIST EN 50633:2016SLOVENSKI
STANDARD
SIST EN 50633:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 50633
August 2016 ICS 29.280
English Version
Railway applications - Fixed installations - Protection principles for AC and DC electric traction systems
Applications ferroviaires - Installations fixes - Principes de protection pour les réseaux de traction électrique à courant alternatif et à courant continu
Bahnanwendungen - Ortsfeste Anlagen - Schutzprinzipien für AC und DC Bahnenergieversorgungssysteme This European Standard was approved by CENELEC on 2016-04-18. 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 50633:2016 E SIST EN 50633:2016
EN 50633:2016 2 Contents Page European foreword . 4 1 Scope . 5 2 Normative references . 6 3 Terms and definitions . 6 4 System to be protected . 12 4.1 Description . 12 4.2 Interfaces . 14 4.2.1 Infeed . 14 4.2.2 Rolling stock . 14 4.2.3 Electrical installations fed by the electric traction system . 15 5 General principles . 15 5.1 Objectives . 15 5.2 System requirements . 16 5.2.1 General . 16 5.2.2 Protection reliability methods . 17 5.2.3 Load discrimination. 19 5.2.4 Speed of protection . 19 5.2.5 Selectivity . 20 5.2.6 Economic feasibility . 20 5.3 Description of the protection system . 20 5.4 Fault and abnormal conditions . 21 5.5 Protection concept . 22 6 Specific requirements of different systems . 23 6.1 General . 23 6.2 AC systems . 23 6.2.1 Power conversion infeed . 23 6.2.2 Busbar infeed . 24 6.2.3 Line feeder . 24 6.2.4 Switching station feeder . 27 6.2.5 Autotransformer . 28 6.3 DC systems . 28 6.3.1 Power conversion infeed . 28 6.3.2 DC Busbar infeed . 29 6.3.3 Line feeder . 30 6.3.4 Switching station feeder . 30 6.3.5 Frame leakage protection . 31 6.4 Overview of protection reliability methods . 31 7 Limitations and residual risks . 32 8 Conformity assessment . 34 Annex A (informative)
Examples of protection schemes . 35 A.1 General . 35 A.2 Description of the structure of the protection scheme examples . 35 A.3 Protection scheme examples . 36 Annex B (informative)
Example of a Protection Concept for a 25 kV line section . 39 B.1 Introduction . 39 B.2 Protection Concept. 39 SIST EN 50633:2016
EN 50633:2016 3 B.3 Interfaces. 40 B.4 Fault Conditions . 40 B.5 Clearance times . 40 B.6 Main protection functions . 40 B.7 Reliability methods . 40 B.8 Selectivity . 41 B.9 Grading time requirements . 41 B.10 Coordination requirements . 41 B.11 Maintenance requirements . 41 B.12 Protection device structure . 41 B.13 Operating sequence . 43 Bibliography . 45
Figures Figure 1 — Electric traction system and its interfaces . 14 Figure 2 — Example of a protection system . 21 Figure 3 — Example for single protected line sections . 25 Figure 4 — Example for a grouped protected line section . 26 Figure 5 — Example for an extended protected section of an additional line feeder of a short section by bridged section insulation . 27 Figure A.1— Key for protection scheme, example of protected section ‘busbar’ . 35 Figure A.2 — Example of a protection scheme for AC 50 Hz electric traction systems without busbar infeed circuit breaker . 36 Figure A.3 — Example of a protection scheme for AC 16,7 Hz electric traction systems with busbar infeed circuit breaker . 37 Figure A.4 — Example of a protection scheme for DC electric traction systems with busbar infeed circuit breaker . 38 Figure B.1 — System single line diagram . 39 Figure B.2 — Scheme functional diagram of feeder breakers A1 and A2 . 43 Figure B.3 — Typical scheme sequence diagram – Fault on Feeder A . 44
Tables Table 1 — Overview of reliability methods . 31 Table 2 — Limitations of protection systems and generic residual risks . 33
SIST EN 50633:2016
EN 50633:2016 4 European foreword This document (EN 50633:2016) has been prepared by CLC/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 this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017–04–18 • latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2019–04–18 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights. SIST EN 50633:2016
EN 50633:2016 5 1 Scope This European Standard applies to the electrical protection system, provided for AC and DC electric traction systems. It: – establishes railway specific protection principles; – describes the railway specific protection system functionality; – specifies minimum functional requirements and informative examples of their application; – establishes limitations of the protection system and the acceptability of residual risks; – specifies principles for conformity assessment. It applies to: – railways; – guided mass transport systems, such as tramways, elevated and underground railways, mountain railways, trolleybus systems, and magnetically levitated systems which use a contact line system. This European Standard may also be applied to electrified road traffic with a contact line, such as truck-trolley systems. This European Standard applies to new electric traction systems and may be applied to changes of existing systems. It does not apply to: – underground mine traction systems; – cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the traction power supply system; – suspended cable cars; – funicular railways; – magnetic levitated systems (without a contact line system); – railways with an inductive power supply without contact system; – railways with a buried contact system that is required to be energized only below the train to ensure safety. This European Standard does not cover: – technical requirements for products, e.g. protection devices; – rules for maintenance of protection systems. SIST EN 50633:2016
EN 50633:2016 6 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 50122-1:2011, Railway applications — Fixed installations — Electrical safety, earthing and the return circuit — Part 1: Protective provisions against electric shock EN 50122-3, Railway applications — Fixed installations — Electrical safety, earthing and the return — Part 3: Mutual Interaction of a.c. and d.c. traction systems EN 50123-1, Railway applications — Fixed installations — D.C. switchgear — Part 1: General EN 50123-7-1, Railway applications — Fixed installations — D.C. switchgear — Part 7-1: Measurement, control and protection devices for specific use in d.c. traction systems — Application guide EN 50153, Railway applications — Rolling stock — Protective provisions relating to electrical hazards EN 50327, Railway applications — Fixed installations — Harmonisation of the rated values for converter groups and tests on converter groups 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 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE When possible, the following definitions have been taken from the relevant chapters of the International Electrotechnical Vocabulary (IEV), IEC 60050. In such cases, the appropriate IEV reference is given. 3.1 contact line system support network for supplying electrical energy from substations to electrically powered traction units, which covers overhead contact line systems and conductor rail systems, and whose electrical limits are the feeding point and the contact point to the current collector Note 1 to entry: The mechanical system may comprise: – the contact line; – structures and foundations; – supports and any components supporting or registering the conductors; – head and cross spans; – tensioning devices; – along-track feeders, reinforcing feeders, and other lines like earth wires and return conductors as far as they are supported from contact line system structures; – any other equipment necessary for operating the contact line; – conductors connected permanently to the contact line for supply of other electrical equipment such as lights, signal operation, point control and point heating. SIST EN 50633:2016
EN 50633:2016 7 [SOURCE: EN 50119:2009, 3.1.1, modified — The former sentence that began with "The electrical limits are…" was attached to the definition with the pronoun "whose".] 3.2 electric traction system railway electrical distribution network used to provide energy for rolling stock Note 1 to entry: The system may comprise: – contact line systems; – return circuit of electric traction systems; – electrical installations in substations, which are utilized solely for distribution of power directly to the contact line; – electrical installations of switching stations. [SOURCE: EN 50122-1:2011, 3.4.1, modified — Running rails of non-electrified lines in the vicinity of, and conductively connected to the running rails of an electric traction system, and electrical installations which are supplied from contact lines either directly or via a transformer have been excluded from Note 1 to entry.] 3.3 (traction) substation substation the main function of which is to supply a traction system [SOURCE: IEC 60050-811:1991, 811-36-02] 3.4 (traction) switching station installation from which electrical energy can be distributed to different feeding sections or from which different feeding sections can be switched on and off or can be interconnected [SOURCE: IEC 60050-811:2015 (CDV), 811-36-22] 3.5 feeding section electrical section of the route fed by individual track feeder circuit-breakers within the area supplied by the substation [SOURCE: EN 50119:2009, 3.3.2] 3.6 electrical safety freedom from unacceptable risk of harm caused by electrical hazards [SOURCE: EN 50122-1:2011, 3.1.1] 3.7 electric shock physiological effect resulting from an electric current through a human or animal body [SOURCE: IEC 60050-826:2004, 826-12-01] SIST EN 50633:2016
EN 50633:2016 8 3.8 return circuit all conductors which form the intended path for the traction return current EXAMPLE The conductors may be: – running rails; – return conductor rails; – return conductors; – return cables. [SOURCE: EN 50122-1:2011, 3.3.1] 3.9 switchgear switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures, intended in principle for use in connection with generation, transmission, distribution and conversion of electric energy [SOURCE: IEC 60050-441:2000, 441-11-02] 3.10 protection operating time interval of time between the fault inception and the instant of initiation of the opening operation of a switching device, e.g. circuit breaker Note 1 to entry: This time includes measurement, communication and protection device operation. 3.11 opening time (of a mechanical switching device) interval of time between the specified instant of initiation of the opening operation and the instant when the arcing contacts have separated in all poles Note 1 to entry: The instant of initiation of the opening operation, i.e. the application of the opening command (e.g. energizing the release, etc.), is given in the relevant specifications. [SOURCE: IEC 60050-441:2000, 441-17-36] 3.12 break-time interval of time between the beginning of the opening time of a mechanical switching device (or the pre-arcing time of a fuse) and the end of the arcing time [SOURCE: IEC 60050-441:2000, 441-17-39] 3.13 fault clearance time time interval between the fault inception and the fault clearance Note 1 to entry: This time is the longest fault current interruption time of the associated circuit-breaker(s) for elimination of fault current on the faulty item of plant. Note 2 to entry: Fault clearance time is the total of the protection operating time, the (mechanical) opening time and the arc extinction time. The latter two are included in break-time, IEC 60050-441–17–39. [SOURCE: IEC 60050-448:1995, 448-13-15] SIST EN 50633:2016
EN 50633:2016 9 3.14 (effective) touch voltage
Ute voltage between conductive parts when touched simultaneously by a person or an animal Note 1 to entry: The value of the effective touch voltage can be appreciably influenced by the impedance of the person or the animal in electric contact with these conductive parts. [SOURCE: IEC 60050-195:1998, 195-05-11] 3.15 fault condition non intended condition caused by short-circuit, whilst the time duration is terminated by the correct function of the protection devices and circuit breakers Note 1 to entry: For the relevant fault duration the correct operation of protection devices and circuit breakers is taken into account. [SOURCE: EN 50122-1:2011, 3.4.5, modified — "Whilst" was added so as to link the sentence "The time duration…" with the rest of the definition.] 3.16 low resistance fault fault condition where the resistance of the fault is sufficiently low that the fault current is of a similar magnitude to that which would flow if the fault resistance were zero Note 1 to entry: The resistance of the fault is typically dominated by the resistance of the power arc. Note 2 to entry: In this definition, resistance will be understood as also being impedance for AC fault currents. 3.17 high resistance fault fault condition where the resistance of the fault is sufficiently high that the fault current is of a substantially different magnitude to that which would flow with a low resistance fault Note 1 to entry: In this definition, resistance will be understood as also being impedance for AC fault currents. 3.18 abnormal operating condition condition where the system is operated beyond its intended capabilities such that damage or reduced life expectancy can be anticipated 3.19 short-circuit accidental or intentional conductive path between two or more conductive parts forcing the electric potential differences between these conductive parts to be equal to or close to zero [SOURCE: IEC 60050-195:1998, 195-04-11] 3.20 current collector equipment fitted to a vehicle and intended to collect current from a contact wire or conductor rail [SOURCE: IEC 60050-811:2015 (CDV), 811-32-01] SIST EN 50633:2016
EN 50633:2016 10 3.21 protection provisions for detecting faults or other abnormal operating conditions in a power system, for enabling fault clearance, for terminating abnormal operating conditions, and for initiating signals or indications Note 1 to entry: The term “protection” is a generic term for protection equipment or protection systems. Note 2 to entry: The term “protection” may be used to describe the protection of a complete power system or the protection of individual plant items in a power system e.g. transformer protection, line protection, generator protection. Note 3 to entry: Protection does not include items of power system plant provided, for example, to limit overvoltages on the power system. However, it includes items provided to control the power system voltage or frequency deviations such as automatic reactor switching, load-shedding, etc. [SOURCE: IEC 60050-448:1995, 448-11-01, modified — Abnormal condition becomes abnormal operating conditions.] 3.22 protection system arrangement of one or more protection equipments, and other devices intended to perform one or more specified protection functions Note 1 to entry: A protection system includes one or more protection equipment, intelligent electronic devices (IED), instrument transformer(s), wiring, tripping circuit(s), auxiliary supply(s) and, where provided, communication system(s). Depending upon the principle(s) of the protection system, it may include one end or all ends of the protected section and, possibly, automatic reclosing equipment. Note 2 to entry: The circuit-breaker(s) are excluded. Note 3 to entry: The circuit-breaker protection functions are included, e.g. direct over-current or falling voltage release of dc-circuit-breaker(s). [SOURCE: IEC 60050-448:1995, 448-11-04, modified – Note 3 to entry has been added.] 3.23 protection equipment equipment incorporating one or more protection relays and, if necessary, logic elements intended to perform one or more specified protection functions Note 1 to entry: A protection equipment is part of a protection system. [SOURCE: IEC 60050-448:1995, 448-11-03] 3.24 protection relay measuring relay which, either solely or in combination with other relays, is a constituent of a protection equipment [SOURCE IEC 60050-448:1995, 448-11-02] SIST EN 50633:2016
EN 50633:2016 11 3.25 protected section part of a power system network, or circuit within a network, to which specified protection has been applied Note 1 to entry: The protected section normally originates from a point of automatic disconnection to at least the next point of automatic disconnection or the end of the circuit. Note 2 to entry: An electric traction system is a form of power system network. [SOURCE: IEC 60050-448:1995, 448-11-05, modified — The Notes to entry were added.] 3.26 selectivity (of protection) ability of a protection to identify the faulty section and/or phase(s) of a power system [SOURCE: IEC 60050-448:1995, 448-11-06] 3.27 reliability of protection probability that a protection can perform a required function under given conditions for a given time interval [SOURCE: IEC 60050-448:1995, 448-12-05] 3.28 redundancy in an item, existence of more than one means for performing a required function [SOURCE: IEC 60050-448:1995, 448-12-08] 3.29 sensitivity (of protection) minimum operating level (e.g. current, voltage, frequency, temperature) in a process that can be detected for the purpose of protection EXAMPLE Sensitivity of a protection system can be expressed by minimum fault current or maximum fault impedance coverage. 3.30 main protection protection expected to have priority in initiating fault clearance or an action to terminate an abnormal condition in a power system [SOURCE: IEC 60050-448:1995, 448-11-13] 3.31 backup protection protection which is intended to operate when a system fault is not cleared, or abnormal condition not detected, in the required time because of failure or inability of other protection to operate or failure of the appropriate circuit-breaker(s) to trip [SOURCE: IEC 60050-448:1995, 448-11-14] SIST EN 50633:2016
EN 50633:2016 12 3.32 circuit local backup protection backup protection where the input is either from those transducers which are used by the main protection or from transducers associated with the same primary circuit as the main protection [SOURCE: IEC 60050-448:1995, 448-11-15 modified — "Instrument transformers" has been replaced with "transducers" and the definition was reworded to make it more generic.] 3.33 (substation) local backup protection backup protection where the input is taken from a transducer located within the same substation as the corresponding main protection and not associated with the same primary circuit
Note 1 to entry: Substation local backup also extends to switching station local backup where appropriate. [SOURCE: IEC 60050-448:1995, 448-11-16 modified — "Instrument transformers" has been replaced with "a transducer", the definition was reworded to make it more generic and the Note 1 to entry was added.] 3.34 remote backup protection backup protection located in a substation remote from that substation in which the corresponding main protection is located [SOURCE: IEC 60050-448:1995, 448-11-17] 3.35 circuit-breaker failure protection protection which is designed to clear a system fault by initiating tripping of other circuit-breaker(s) in the case of failure to trip of the appropriate circuit-breaker [SOURCE: IEC 60050-448:1995, 448-11-18] 3.36 tripping opening of a circuit-breaker by either manual or automatic control or by protective devices [SOURCE: IEC 60050-448:1995, 448-11-31] 3.37 direct over-current release over-current release directly energized by the current in the main circuit of a mechanical switching device [SOURCE: IEC 60050-441:2000, 441-16-36] 3.38 indirect over-current release over-current release energized by the current in the main circuit of a mechanical switching device through a current transformer or a shunt [SOURCE: IEC 60050-441:2000, 441-16-37] 4 System to be protected 4.1 Description The
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SLOVENSKI STANDARD
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01-september-2014
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Railway applications - Fixed installations - Protection principles for AC and DC electric
traction systems
Ta slovenski standard je istoveten z: prEN 50633:2014
ICS:
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
oSIST prEN 50633:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 50633:2014
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oSIST prEN 50633:2014
EUROPEAN STANDARD DRAFT
prEN 50633
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2014
ICS
English Version
Railway applications - Fixed installations - Protection principles
for AC and DC electric traction systems
To be completed To be completed
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2014-11-28.
It has been drawn up by CLC/SC 9XC.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
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
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 23349 Ref. No. prEN 50633:2014 E
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1 Contents Page
2 Foreword .4
3 1 Scope .5
4 2 Normative references .6
5 3 Terms and definitions .6
6 4 System to be protected . 11
7 4.1 Description . 11
8 4.2 Interfaces . 12
9 4.2.1 Infeed . 12
10 4.2.2 Rolling stock . 13
11 4.2.3 Auxiliaries fed by traction power . 13
12 5 General principles . 13
13 5.1 Objectives . 13
14 5.2 General requirements . 14
15 5.2.1 Introduction . 14
16 5.2.2 Protection reliability methods . 14
17 5.2.3 Load discrimination. 16
18 5.2.4 Speed of protection . 17
19 5.2.5 Selectivity . 17
20 5.2.6 Economic feasibility . 17
21 5.3 Protection system. 17
22 5.4 Fault and abnormal conditions . 18
23 5.5 Protection concept . 19
24 6 Specific requirements of different systems . 20
25 6.1 General . 20
26 6.2 AC systems . 20
27 6.2.1 Power conversion feeder . 20
28 6.2.2 Busbar feeder . 20
29 6.2.3 Line feeder . 21
30 6.2.4 Switching station feeder . 24
31 6.2.5 Autotransformer . 24
32 6.3 DC systems . 24
33 6.3.1 Power conversion feeder . 24
34 6.3.2 Busbar feeder . 25
35 6.3.3 Line feeder . 25
36 6.3.4 Switching station feeder . 26
37 6.3.5 Frame protection . 26
38 6.4 Overview of reliability methods . 27
39 7 Technical limits and residual risks . 29
40 8 Conformity assessment . 30
41 Annex A (informative) Examples of protection schemes . 31
42 A.1 General . 31
43 A.2 Description of the structure of the protection scheme examples . 31
44 A.3 Protection Schemes . 32
45 A.3.1 AC 50 Hz - Example . 32
46 A.3.2 AC 16,7 Hz - Example . 33
47 A.3.3 DC - Example . 34
48 Annex B (informative) Example of a Protection Concept for a 25 kV line section . 35
49 B.1 General . 35
50 B.2 Description of system . 35
51 B.3 Fault conditions . 36
52 B.4 Clearance times . 36
53 B.5 Main protection functions . 36
54 B.6 Reliability methods . 36
55 B.7 Selectivity . 36
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56 B.8 Grading time requirements . 36
57 B.9 Coordination requirements . 37
58 B.10 Maintenance requirements . 37
59 B.11 Protection device structure . 37
60 B.12 Operating sequence . 39
61 Bibliography . 40
62 Figures
63 Figure 1 — Scope of system to be protected and its interfaces . 12
64 Figure 2 — action scheme of a protection system . 18
65 Figure 3 — example for single protected sections . 22
66 Figure 4 — example for a grouped protected section . 22
67 Figure 5 — extended protection section by bridged section insulation . 23
68 Figure 6 — Legend for protection scheme . 31
69 Figure 7 — Example of a typical protection scheme for AC 50 Hz electric traction systems
70 without busbar feeder circuit breaker . 32
71 Figure 8 — Example of a typical protection scheme for AC 16,7 Hz electric traction systems
72 with busbar feeder protection . 33
73 Figure 9 — Example of a typical protection scheme for DC electric traction systems with
74 busbar feeder protection . 34
75 Figure B.1 — System single line diagram . 35
76 Figure B.2 — Scheme functional diagram . 38
77 Figure B.3 — Scheme sequence diagram – fault on Feeder A . 39
78 Tables
79 Table 1 — Overview of reliability methods . 28
80 Table 2 — Technical limits for generic residual risks . 30
81
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82 Foreword
83 This document (prEN 50633:2014) has been prepared by SC 9XC "Electric supply and earthing
84 systems for public transport equipment and ancillary apparatus (Fixed installations)" of CLC/TC 9X
85 “Electrical and electronic applications for railways”.
86 This document is currently submitted to the Enquiry.
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87 1 Scope
88 This standard
89 – defines protection principles,
90 – describes the railway specific protection functions,
91 – defines minimum functional requirements and informative examples of their application,
92 – describe technical limits,
93 – identify residual risks,
94 – describes principles for conformity assessment,
95 for AC and DC electric traction systems.
96
97 It applies to
98 – railways,
99 – guided mass transport systems, such as tramways, elevated and underground railways,
100 mountain railways, trolleybus systems, and magnetically levitated systems which use a
101 contact line system.
102 This standard may also be applied to electrified road traffic with contact line, such as truck-trolley
103 systems.
104 This standard applies to new electric traction systems and to all significant changes of existing
105 systems.
106
107 It does not apply to
108 – underground mine traction systems,
109 – cranes, transportable platforms and similar transportation equipment on rails, temporary
110 structures (e.g. exhibition structures) in so far as these are not supplied directly or via
111 transformers from the contact line system and are not endangered by the traction power
112 supply system,
113 – suspended cable cars,
114 – funicular railways,
115 – magnetic levitated systems (without contact line system),
116 – railways with inductive power supply without contact system,
117 – railways with buried contact system that is required to be energized only below the train to
118 ensure safety.
119
120 This standard does not cover
121 – technical requirements for products,
122 – rules for maintenance of protection systems.
123
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124 2 Normative references
125 The following documents, in whole or in part, are normatively referenced in this document and are
126 indispensable for its application. For dated references, only the edition cited applies. For undated
127 references, the latest edition of the referenced document (including any amendments) applies.
128 EN 50122-1, Railway applications – Fixed installations – Electrical safety, earthing and the return
129 circuit – Part 1: Protective provisions against electric shock
130 EN 50122-3, Railway applications – Fixed installations – Electrical safety, earthing and the return
131 circuit – Part 3: Mutual Interaction of a.c. and d.c. traction systems
132 EN 50123 (all parts), Railway applications – Fixed installations – D.C. switchgear
133 EN 50152 (all parts), Railway applications – Fixed installations – Particular requirements for AC
134 switchgear
135 EN 50153, Railway applications - Rolling stock - Protective provisions relating to electrical hazards
136 EN 50388, Railway applications – Power supply and rolling stock – Technical criteria for the
137 coordination between power supply (substation) and rolling stock to achieve interoperability
138 EN 60255 (all parts), Measuring relays and protection equipment (IEC 60255 (all parts))
139 EN 50327, Railway applications - Fixed installations - Harmonisation of the rated values for converter
140 groups and tests on converter groups
141
142 3 Terms and definitions
143 For the purposes of this document, the following terms and definitions apply.
144 NOTE When possible, the following definitions have been taken from the relevant chapters of the International Electrotechnical
145 Vocabulary (IEV), IEC 60050. In such cases, the appropriate IEV reference is given.
146 3.1
147 contact line system
148 support network for supplying electrical energy from substations to electrically powered traction units,
149 which covers overhead contact line systems and conductor rail systems; the electrical limits of the
150 system are the feeding point and the contact point to the current collector
151 Note 1 to entry: The mechanical system may comprise
152 – the contact line,
153 – structures and foundations,
154 – supports and any components supporting or registering the conductors,
155 – head and cross spans,
156 – tensioning devices,
157 – along-track feeders, reinforcing feeders, and other lines like earth wires and return conductors as far as they are supported
158 from contact line system structures,
159 – any other equipment necessary for operating the contact line,
160 – conductors connected permanently to the contact line for supply of other electrical equipment such as lights, signal
161 operation, point control and point heating.
162 [EN 50119:2009, 3.1.1]
163
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164 3.2
165 electric traction system
166 railway electrical distribution network used to provide energy for rolling stock
167 Note 1 to entry: The system may comprise
168 – contact line systems,
169 – return circuit of electric traction systems,
170 – electrical installations in substations, which are utilized solely for distribution of power directly to the contact line,
171 – electrical installations of switching stations.
172 [EN 50122-1:2011, 3.4.1, modified: running rails of non-electrified lines in the vicinity of, and
173 conductively connected to the running rails of an electric traction system, and electrical installations
174 which are supplied from contact lines either directly or via a transformer have been excluded from
175 Note 1 to entry.
176 3.3
177 (traction) substation
178 a substation the main function of which is to supply a traction system
179 [IEV811-36-03]
180 3.4
181 (traction) switching station
182 installation from which electrical energy can be distributed to different feeding sections or from which
183 different feeding sections can be switched on and off or can be interconnected
184 3.5
185 feeding section
186 electrical section of the route fed by individual track feeder circuit-breakers within the area supplied by
187 the substation
188 [EN 50119:2009, 3.3.2]
189 3.6
190 electrical safety
191 freedom from unacceptable risk of harm caused by electrical hazards
192 [EN 50122-1:2011, 3.1.1]
193 3.7
194 electric shock
195 pathophysiological effect resulting from an electric current passing through a human or animal body
196 [IEC 60050-826-12-01]
197 3.8
198 return circuit
199 all conductors which form the intended path for the traction return current
200 EXAMPLE The conductors may be
201 – running rails,
202 – return conductor rails,
203 – return conductors,
204 – return cables.
205 [EN 50122-1:2011, 3.3.1]
206 3.9
207 switchgear and controlgear
208 a general term covering switching devices and their combination with associated control, measuring,
209 protective and regulating equipment, also assemblies of such devices and equipment with associated
210 interconnections, accessories, enclosures and supporting structures
211 [IEC 60050-441-11-01]
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212 3.10
213 opening time (of a mechanical switching device)
214 the interval of time between the specified instant of initiation of the opening operation and the instant
215 when the arcing contacts have separated in all poles
216 Note 1 to entry: The instant of initiation of the opening operation, i.e. the application of the opening command (e.g. energizing
217 the release, etc.) is given in the relevant specifications.
218 [IEC 60050-441-17-36]
219 3.11
220 (effective) touch voltage
221 U
te
222 voltage between conductive parts when touched simultaneously by a person or an animal
223 Note 1 to entry: The value of the effective touch voltage can be appreciably influenced by the impedance of the
224 person or the animal in electric contact with these conductive parts.
225 [IEC 60050-195-05-11]
226 3.12
227 earth
228 conductive mass of the earth, whose electric potential at any point is conventionally taken as equal to
229 zero
230 [IEC 60050-826-04-01]
231 3.13
232 earthing
233 connection of conductive parts to an appropriate earth electrode
234 3.14
235 fault condition
236 non intended condition caused by short-circuit. The time duration is terminated by the correct function
237 of the protection devices and circuit breakers
238 Note 1 to entry: For the relevant fault duration the correct operation of protection devices and circuit breakers is taken into
239 account.
240 [EN 50122-1]
241 3.15
242 low resistance fault
243 short circuit fault condition where the resistance of the fault is sufficiently low that the fault current is of
244 a similar magnitude to that which would flow if the fault resistance were zero
245 Note 1 to entry: The resistance of the fault is typically dominated by the resistance of the power arc.
246 Note 2 to entry: In this definition, resistance is to understood as also being impedance for AC fault currents.
247 3.16
248 high resistance fault
249 short circuit fault condition where the resistance of the fault is sufficiently high that the fault current is
250 of a substantially different magnitude to that which would flow if the fault resistance were zero
251 Note 1 to entry: In this definition, resistance is to understood as also being impedance for AC fault currents.
252 3.17
253 abnormal operating condition
254 condition where the system is operated beyond its intended capabilities such that damage or reduced
255 life expectance can be anticipated
256 3.18
257 short-circuit
258 accidental or intentional conductive path between two or more conductive parts forcing the electric
259 potential differences between these conductive parts to be equal to or close to zero
260 [IEC 60050-195-04-11]
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261 3.19
262 current collector
263 equipment fitted to the vehicle and intended to collect current from a contact wire or conductor rail
264 [IEC 60050-811-32-01]
265 3.20
266 protection
267 provisions for detecting faults or other abnormal conditions in a power system, for enabling fault
268 clearance, for terminating abnormal conditions, and for initiating signals or indications
269 Note 1 to entry: The term "protection" is a generic term for protection equipment or protection systems.
270 Note 2 to entry: The term "protection" may be used to describe the protection of a complete power system or the protection of
271 individual plant items in a power system e.g. transformer protection, line protection, generator protection.
272 Note 3 to entry: Protection does not include items of power system plant provided, for example, to limit overvoltages on the
273 power system. However, it includes items provided to control the power system voltage or frequency deviations such as
274 automatic reactor switching, load-shedding, etc.
275 [IEC 60050- 448-11-01]
276 3.21
277 protection system
278 arrangement of one or more protection equipments, and other devices intended to perform one or
279 more specified protection functions
280 Note 1 to entry: A protection system includes one or more protection equipment, IEDs, instrument transformer(s), wiring, tripping
281 circuit(s), auxiliary supply(s) and, where provided, communication system(s). Depending upon the principle(s) of the protection
282 system, it may include one end or all ends of the protected section and, possibly, automatic reclosing equipment.
283 Note 2 to entry: The circuit-breaker(s) are excluded.
284 Note 3 to entry: The circuit-breaker protection functions are included, e.g. direct overcurrent release of dc-circuit-breakers(s). ,
285 [IEC 60050- 448-11-04, modified – Note 3 to entry has been added.]
286 3.22
287 protection equipmentequipment incorporating one or more protection relays and, if necessary, logic
288 elements intended to perform one or more specified protection functions
289 Note 1 to entry: A protection equipment is part of a protection system.
290 [IEC 60050- 448-11-03]
291 3.23
292 protection relay
293 measuring relay which, either solely or in combination with other relays, is a constituent of a protection
294 equipment
295 [IEC 60050-448-11-02]
296 3.24
297 protected section
298 that part of a power system network, or circuit within a network, to which specified protection has been
299 applied
300 [IEC 60050-448-11-05]
301 3.25
302 selectivity of protection
303 ability of a protection to identify the faulty section and/or phase(s) of a power system
304 [IEC 60050-448-11-06]
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305 3.26
306 reliability of protection
307 probability that a protection can perform a required function under given conditions for a given time
308 interval
309 [IEC 60050-448-12-05]
310 3.27
311 redundancy
312 in an item, existence of more than one means for performing a required function
313 [IEC 60050-448-12-08]
314 3.28
315 sensitivity of protection
316 ability to identify smallest process values outside the normal range
317 EXAMPLE: Sensitivity of a protection system might be expressed by minimum fault current or maximum fault impedance
318 coverage.
319 3.29
320 main protection
321 protection expected to have priority in initiating fault clearance or an action to terminate an abnormal
322 condition in a power system
323 [IEC 60050-448-11-13]
324 3.30
325 backup protection
326 protection which is intended to operate when a system fault is not cleared, or abnormal condition not
327 detected, in the required time because of failure or inability of other protection to operate or failure of
328 the appropriate circuit-breaker(s) to trip
329 [IEC 60050-448-11-14]
330 3.31
331 circuit local backup protection
332 backup protection which is energised either from those instrument transformers which energize the
333 main protection or from instrument transformers associated with the same primary circuit as the main
334 protection
335 [IEC 60050-448-11-15]
336 3.32
337 substation local backup protection
338 backup protection which is energized from instrument transformers located within the same substation
339 as the corresponding main protection and not associated with the same primary circuit
340 [IEC 60050-448-11-16]
341 3.33
342 remote backup protection
343 backup protection located in a substation remote from that substation in which the corresponding main
344 protection is located
345 [IEC 60050-448-11-17]
346 3.34
347 circuit-breaker fai
...
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