CEPS, a.s.

CEPS is responsible for electricity transfer, transmission system operation, maintenance and development, and real-time dispatch in the Czech power supply system. As a system service it further develops and tests a Defence Plan (to prevent failure spreading) and a Restoration Plan (to restore the power supply after major system failures). It provides technical management of system services such as power-frequency control and voltage and reactive power control, and is responsible for the availability and efficient use of power reserves.

Map of the Czech transmission system:

Transmission system facilities

A list of transmission system facilities is given in the table below. 2,628 route kilometers out of a total of 5,454 route kilometres of high voltage lines (110 kV to 400 kV) are equipped with optical fibres. Total transformation capacity amounts to 17,190 MVA in 30 transformers of the transmission system and total compensation capacity is 1,436 MVAr.


	On-Line Data

	Data about Transmission System

	Transmission System Development

	Operation of the Transmission System

	Consumption Charts

	Preparation for 2006

	Transmission Network

	Unavailability of Blocks > 100 MW

	Services

Data about Transmission System

The CEPS transmission system is part of the Czech power supply system, which links major entities operating within the power supply system and across which the majority of cross-border exchanges are carried out. The CEPS transmission system comprises 38 substations of 420 kV and 245 kV located at 30 transformer stations, along with 2,900 km of 400 kV lines and 1,440 km of 220 kV lines. Two 123 kV substations and 105 route kilometres of 110 kV lines are also part of the transmission system.

Description of Facilities	Total in the Czech Republic	Units
Route km of 400 kV lines	2,900	km
Route km of 220 kV lines	1,440	km
Route km of 110 kV lines	106	km
Length of 400 kV lines	3,383	km
Length of 220 kV lines	1,912	km
Length of 110 kV lines	161	km
400 kV cross-border tie-lines	11	-
220 kV cross-border tie-lines	6	-
110 kV cross-border tie-lines	0	-
420 kV substations	24	-
245 kV substations	14	-
123 kV substations	2	-
400/220 kV transformation capacity	1,900	MVA
400/110 kV transformation capacity	11,290	MVA
220/110 kV transformation capacity	4,000	MVA
400/220 kV transformer bindings	4	-
400/110 kV transformer bindings	41	-
220/110 kV transformer bindings	20	-
400 kV compensation capacity	660	MVAr
35 kV compensation capacity	367	MVAr
10 kV compensation capacity	409	MVAr
400 kV shunt reactors	4	-
35 kV shunt reactors	6	-
10 kV shunt reactors	9	-

Types of lines operated by ČEPS, a.s.

Structure of facilities of the transmission system is given in the table below.

Line	Single	Double	Multiple	Total
Voltage [kV]	Route kilometres [km]			Route kilometres [km]
400	2,391	507	2	2,900
220	962	478		1,440
110	50	56		106



Last updated: 23/8/2010