The key data of the Transmission System Equipment are set out below, as they stood on 31/12/2020.
|
TRANSMISSION LINES (km) |
||||||
|
TYPE OF LINES |
400 kV |
DC 400 kV |
150 kV |
66 kV |
TOTAL |
|
|
OVERHEAD LINES |
2.760,48 |
106,95 |
8.240,95 |
39,05 |
11.147,43 |
|
|
SUBMARINE CABLES |
|
|
807,51 |
72,2 |
879,71 |
|
|
SUBMARINE CABLES (underground part) |
|
|
28,1 |
2,8 |
30,90 |
|
|
UNDERGROUND LINES |
31,45 |
|
303,90 |
|
335,35 |
|
|
TOTAL |
2.791,93 |
106,95 |
9.380,47 |
114,05 |
12.393,39 |
|
|
SUBSTATIONS WITH IPTO ASSETS |
||||||
|
TYPE |
TRANSFORMER |
SWITCHING |
TOTAL SUBSTATION |
|||
|
HVC - SWITCHING (400KV) |
18 |
4 |
22 |
|||
|
STEP-DOWN - SWITCHING SUBSTATION (150KV) |
202 |
4 |
206 |
|||
|
SUBSTATION OF HV CUSTOMERS - MINES |
37 |
|
37 |
|||
|
STEP-UP (PRODUCTION STATIONS) |
28 |
|
28 |
|||
|
STEP-UP RES PRODUCERS |
68 |
|
68 |
|||
|
TOTAL |
|
|
361 |
|||
|
TRANSFORMERS |
||||
|
TRANSFORMER TYPE |
VOLTAGE (kV) |
NUMBER OF TRANSFORMERS |
MVA CAPACITY |
|
|
AUTOTRANSFORMERS |
400/150/30 |
62 |
16.940 |
|
|
AUTOTRANSFORMERS |
150/66 |
1 |
50 |
|
|
CONVERTER STATION TRANSFORMER |
400 |
1 |
597 |
|
|
STEP-DOWN TRANSFORMER |
150/66 |
2 |
50 |
|
|
SVC TRANSFORMER |
150/20 |
2 |
150 |
|
| TOTAL | 68 | 17.787 | ||
|
TRANSFORMERS |
|||||
|
TYPE |
VOLTAGE (kV) |
NUMBER OF TRANSFORMERS |
MVA CAPACITY |
USER |
|
|
STEP-UP (CONVENTIONAL PRODUCTION AND HYDROELECTRIC STATIONS) |
400 |
21 |
7.106 |
PRODUCERS |
|
|
150 |
50 |
6.029 |
|||
|
STEP-UP RES PRODUCER |
20 |
2 |
7 |
||
|
150 |
94 |
5.342 |
|||
| TOTAL | 167 | 18.485 | |||
|
STEP-DOWN |
150/20 |
412 |
17.454 |
HEDNO |
|
|
66/20 |
3 |
75 |
|||
|
STEP-DOWN |
150/20 |
5 |
212 |
PRODUCERS |
|
|
STEP-DOWN AUXILIARY |
150 |
21 |
966 |
||
|
STEP-DOWN |
150/20 |
13 |
650 |
PPC / MINES |
|
|
STEP-DOWN |
150/MT |
89 |
2.595 |
HV CUSTOMERS |
|
| TOTAL | 543 | 21.952 | |||
| GENERAL TOTAL | 710 | 40.437 | |||