Transmission system data

Voltage levels and the total length of ČEPS-operated power lines

400kV lines                 3,479 km         (of which 1,117 km double and multiple lines)

220kV lines                 1,909 km         (of which 1,016 km double and multiple lines)

110kV lines                      84 km         (of which 77 km double and multiple lines)

Map of Interconnected Network

  

Facilities and equipment CZ in total  Unit
400kV routes  2,979  km
220kV routes  1,371  km
110kV routes  45  km
400kV line length  3,479  km
220kV line length  1,910  km
110kV line length  83  km
400kV cross-border lines  11  No.
220kV cross-border lines  6  No.
420kV substations  24  No.
245kV substations  14  No.
123kV substations  1  No.
Transformation capacity  18,830  MVA
400/220kV transformers  4  No.
400/110kV transformers    44  No.
220/110kV transformers  20  No.
Compensating power of 400kV shunt reactors  660  MVAr
Compensating power of 35kV shunt reactors  277.6  MVAr
Compensating power of 10kV shunt reactors  408.6  MVAr
400kV shunt reactors  4  No.
35kV shunt reactors  5  No.
10kV shunt reactorsa 9  No.