ENV 50123-7-1 : 1998

Superseded

Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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RAILWAY APPLICATIONS - FIXED INSTALLATIONS - D.C. SWITCHGEAR - MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN D.C. TRACTION SYSTEMS - APPLICATION GUIDE

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Superseded date: 28-03-2003

Language(s):

Published date: 12-01-2013

Publisher: Comite Europeen de Normalisation

Pure ENs are not available for sale, please purchase a suitable national adoption

Table of Contents - (Show below) - (Hide below)

Introduction
1. Scope
2. References
3. Definitions
    3.1 d.c. sensor
    3.2 d.c. shunt
    3.3 isolation transducer
    3.4 Hall effect sensor
    3.5 divider
4. Measurement
    4.1 General
    4.2 Current
    4.3 Voltage dividers
5. Control systems
    5.1 General
    5.2 Anti-pumping
    5.3 Auto-reclose with variable reclose time and final
         lock out
    5.4 Line test device
    5.5 Under voltage close inhibit
6. Protection systems
    6.1 General
    6.2 Protection system for line circuit breakers (L)
    6.3 Protection system for rectifier circuit breaker (R)
    6.4 Direct acting (series trip)
    6.5 Indirect acting
Annex A (informative) Electronic protection relay features
Annex B (informative) Rate of rise and delta I relay - Examples
                        for fault characteristic and setting
                        parameter selection
Annex C (informative) Bibliography on relays in use

Abstract - (Show below) - (Hide below)

Gives help, guidance and requirements for the design of protection, control and measuring systems in d.c. installations that are meant to give a power supply to traction systems. Identifies the characteristics and parameters of equipment which is used in the measurement, control and protection of d.c. traction systems.

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Committee	SC GEL/9/3
Document Type	Standard
ISBN
Pages
Published
Publisher	Comite Europeen de Normalisation
Status	Superseded
Superseded By	I.S. EN 50123-7-1:2003 EN 50123-7-1:2003

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Equivalent Standard(s)	Relationship
DIN V ENV 50123-7-1 : 1999	Identical
VDE V 0115-300-7-1 : 1999	Identical
CEI ENV 50123-7-1 : 1ED 2000	Identical
DD ENV 50123-7.1 : 1999	Identical

Standards Referenced By This Book - (Show below) - (Hide below)

DIN EN 50123-7-2 : 2003	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - D.C. SWITCHGEAR - PART 7-2: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN D.C. TRACTION SYSTEMS - ISOLATING CURRENT TRANSDUCERS AND OTHER CURRENT MEASURING DEVICES

Standards Referencing This Book - (Show below) - (Hide below)

EN 50123-1:2003	Railway applications - Fixed installations - D.C. switchgear - Part 1: General

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