• DIN EN 50123-7-1 : 2003

    Current The latest, up-to-date edition.

    RAILWAY APPLICATIONS - FIXED INSTALLATIONS - D.C. SWITCHGEAR - PART 7-1: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN D.C. TRACTIONS SYSTEMS - APPLICATIONS GUIDE

    Available format(s):  Hardcopy

    Language(s):  German

    Published date:  01-10-2003

    Publisher:  Verband Deutscher Elektrotechniker

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

    1 Scope
    2 Normative references
    3 Definitions
    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 Undervoltage 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
      A.1 Scope
      A.2 Failures
    Annex B (informative) Rate of rise and (delta)I relay
            Examples for fault characteristic and setting
            parameter selection
      B.1 Scope
      B.2 Rate of rise detection
      B.3 (delta)I Protection
      B.4 Combined di/dt and (delta)I protection
    Annex C (informative) Bibliography on relays in use
    Figures

    Abstract - (Show below) - (Hide below)

    Describes assistance, guidance and requirements for the design of protection, control and measuring systems in d.c. installations intended to provide a power supply to traction systems.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes DIN V ENV 50123-7-1. (10/2003)
    Document Type Standard
    Publisher Verband Deutscher Elektrotechniker
    Status Current
    Supersedes
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