Enatel DC System Manual
Page 2 of 31
TABLE OF CONTENTS
1.0
Scope .............................................................................................................................. 4
2.0
System Overview ............................................................................................................. 5
3.0
Installation ....................................................................................................................... 6
3.1
Unpacking & Installing in 19” Rack ............................................................................... 6
3.2
Installing in ETSI Rack ................................................................................................. 6
3.3
AC Cabling ................................................................................................................... 7
3.3.1
Upstream Over-current Protection ......................................................................... 7
3.4
DC Cabling ................................................................................................................... 9
3.5
Alarm/Ancillary Cabling .............................................................................................. 10
4.0
Alarm Mapping to Volts-free Relays ............................................................................... 12
5.0
Circuit Breaker Fail Monitoring ....................................................................................... 13
6.0
LVD Operation ............................................................................................................... 14
7.0
DC Earthing ................................................................................................................... 15
8.0
Commissioning .............................................................................................................. 16
8.1
System Pre-check: ..................................................................................................... 16
8.2
Rectifier Start-up ........................................................................................................ 16
8.3
Battery Start-up .......................................................................................................... 16
8.4
Load Start-up ............................................................................................................. 16
8.5
DC System Commissioning Check-List ...................................................................... 18
9.0
Maintenance .................................................................................................................. 22
10.0
Appendix 1 - Rectifier Input Fuse Curves ....................................................................... 23
11.0
Appendix 2 - System Wiring Diagrams ........................................................................... 24
Appendix 3 - AC Input Transient Protection .............................................................................. 28
Appendix 4 - Model Specifications ............................................................................................ 30
11.1
System Part Numbers - 3 Rectifier ............................................................................. 30
11.2
System Naming Convention ....................................................................................... 31
