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Basic data of the transmission system for year 2018
Overhead transmission line - line lenghts
400 |
1 341,470 |
379,728 |
18,678 |
1 739,876 |
2 138,282 |
220 |
507,425 |
141,113 |
0,000 |
648,538 |
825,886 |
110 |
0,254 |
21,093 |
18,678 |
40,025 |
79,796 |
Sum total |
1 849,149 |
541,934 |
37,356 |
2 428,439 |
3 007,729 |
Overhead transmission line - number of towers
400 |
3 877 |
1 188 |
64 |
5 129 |
220 |
1 572 |
456 |
0 |
2 028 |
110 |
1 |
81 |
0 |
82 |
Sum total |
5 450 |
1 725 |
64 |
7 239 |
Electrical substations
400 |
19 |
136 |
220 |
6 |
42 |
110 |
1 |
24 |
Sum total |
26 |
202 |
Development (Trend) of substations quantity

Network transformers
400/220 |
3 |
1 400 |
400/110 |
29 |
8 730 |
220/110 |
8 |
1 600 |
Sum total |
40 |
11 730 |
Development (Trend) of transformers quantity 
Development of transformation capacity (MVA)
Protection and automatic devices
400 |
650 |
4 |
31 |
2 |
220 |
149 |
6 |
12 |
0 |
110 |
176 |
7 |
0 |
0 |
35 |
32 |
3 |
0 |
0 |
33 |
55 |
0 |
0 |
0 |
22 |
7 |
17 |
0 |
0 |
10.5 |
59 |
22 |
3 |
0 |
6.3 |
9 |
0 |
0 |
0 |
0.4 |
16 |
0 |
0 |
0 |
Sceleton |
37 |
0 |
4 |
0 |
Sum total |
1 190 |
59 |
50 |
2 |
Number of protection and automatic devices

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