Asset Management Data

The key data of the Transmission System Equipment are set out below, as they stood on 31/12/2019.

 

Transmission Line Lengths (routing length):

TRANSMISSION LINES (km)

TYPE OF LINES

400 kV

DC 400 kV

150 kV

66 kV

TOTAL

OVERHEAD LINES

2.756,41

106,95

8.190,15

39,05

11.092,56

SUBMARINE CABLES

 

 

481,16

74,00

555,16

SUBMARINE CABLES (underground part)

 

 

20,50

1,27

21,77

UNDERGROUND LINES

31,35

 

267,23

 

298,57

TOTAL

2.787,76

106,95

8.959,03

114,32

11.968,06

 

Transformer and Switching Substations which contain IPTO assets:

SUBSTATIONS WITH IPTO ASSETS

TYPE

TRANSFORMER

SWITCHING

TOTAL SUBSTATION

HVC - SWITCHING (400KV)

19

2

21

STEP-DOWN - SWITCHING SUBSTATION (150KV)

201

2

203

SUBSTATION OF HV CUSTOMERS - MINES

38

 

38

STEP-UP (PRODUCTION STATIONS)

33

 

33

STEP-UP RES PRODUCERS

61

 

61

TOTAL

 

 

356

 

Transformers and Transforming capacity - IPTO Fixed assets:

TRANSFORMERS

TRANSFORMER TYPE

VOLTAGE (kV)

NUMBER OF TRANSFORMERS

MVA CAPACITY

AUTOTRANSFORMERS

400/150/30

59

16.070

AUTOTRANSFORMERS

150/66

1

50

CONVERTER STATION TRANSFORMER

400

1

597

STEP-DOWN TRANSFORMER

150/66

2

50

SVC TRANSFORMER

150/20

1

100
TOTAL   64 16.867

 

Transformers of Users Connected with the Transmission System:

TRANSFORMERS

TYPE

VOLTAGE (kV)

NUMBER OF TRANSFORMERS

MVA CAPACITY

USER

STEP-UP

(CONVENTIONAL PRODUCTION AND HYDROELECTRIC STATIONS)

400

25

8.521

PRODUCERS

150

66

7.903

STEP-UP RES PRODUCER

20

2

7

150

78

4.228
TOTAL   171 20.660  

STEP-DOWN

150/20

409

17.304

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

92

2.766

HV CUSTOMERS

TOTAL   543 21.972  
GENERAL TOTAL   714 42.362