NEN 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. TRACTION SYSTEMS - APPLICATION GUIDE
12-01-2013
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
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.
| DevelopmentNote |
Supersedes NEN NVN ENV 50123-7-1. (05/2003)
|
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS EN 50123-7-1:2003 | Identical |
| NF EN 50123-7-1 : 2004 | Identical |
| EN 50123-7-1:2003 | Identical |
| I.S. EN 50123-7-1:2003 | Identical |
| DIN EN 50123-7-1:2003-10 | Identical |
| UNE-EN 50123-7-1:2004 | Identical |