GENERAL INSTRUCTIONS FOR CTC
UNDER POLE COMPACT
TRANSFORMER SUBSTATION
IG-086-GB
version 02
11.07.2007
Page 3 of 20
INDEX
1.
OVERVIEW AND MAIN CHARACTERISTICS................................................................ 4
1.1. PREFABRICATED
ENCLOSURE ............................................................................. 5
1.2. TRANSFORMER....................................................................................................... 5
1.3. LOW
VOLTAGE
BOARD........................................................................................... 5
1.4. MECHANICAL
CHARACTERISTICS ........................................................................ 6
2.
TRANSPORT ................................................................................................................... 7
2.1. ACCESS.................................................................................................................... 7
2.2. ROAD
TRANSPORT ................................................................................................. 7
2.3. SEA
TRANSPORT .................................................................................................... 8
3.
INSTALLATION ............................................................................................................... 9
3.1. LOCATION ................................................................................................................ 9
3.2. PLANNING ................................................................................................................ 9
3.3. HANDLING................................................................................................................ 9
3.4. DIMENSIONS
OF
THE
EXCAVATION.................................................................... 10
3.5. LEVELLING
PROCESS .......................................................................................... 11
3.6. PROTECTION
AND
EARTHING
CIRCUIT.............................................................. 12
3.6.1.
Protection Earth Connection ............................................................................ 12
3.6.2.
Service Earth Connection ................................................................................ 12
3.7. POSITIONING
OF
THE
TRANSFORMER .............................................................. 14
3.8. ACCESS
TO
MV
AND
LV
CABLES ......................................................................... 16
3.8.1.
Connection of the MV Cables to the Transformer............................................ 16
3.8.2.
Connection between the Transformer and the LVB ......................................... 17
3.8.3.
Connection of the Cables to the LVB Outgoing ............................................... 17
3.9. ELECTRICAL
EQUIPMENT
REPLACEMENT ........................................................ 18
4.
MAINTENANCE ............................................................................................................. 19
5.
ADDITIONAL INFORMATION ....................................................................................... 19
5.1. ACCESSORIES
INCLUDED
IN
THE
SUPPLY........................................................ 19
