1

Rated voltage

kV

40.5

2

Maximum working voltage

kV

40.5

3

Rated insulation level

kV

185 (lightning impulse, full wave) /
95 (power frequency, 1 min)

4

Rated frequency

Hz

50

5

Rated current

A

1250

6

Rated short-circuit breaking current

kA

25

7

Rated operating sequence

–

O—0.35s—CO—180s—CO*

8

Rated short-circuit making current (peak)

kA

63

9

Rated dynamic stability current (peak)

kA

63

10

Rated thermal stability current

kA

25

11

Rated thermal stability duration

s

4

12

Switching current for a single capacitor bank

A

400

13

Rated out-of-step breaking current

kA

6.3

14

Accumulated breaking times (rated current)

Times

2000

15

Accumulated breaking times (rated short-circuit)

Times

16

16

Mechanical life

– With CT10-A spring mechanism

Times

6000

– With CD10IIG electromagnetic mechanism

Times

5000

17

Closing time

– Spring mechanism

s

≤0.15

– Electromagnetic mechanism

s

≤0.2

18

Inherent opening time (rated voltage)

– Minimum operating voltage

s

≤0.10

– Maximum operating voltage

s

≤0.07

19

SF6 gas rated pressure (20℃ gauge)

MPa

0.65

20

SF6 gas alarm pressure (20℃ gauge)

MPa

0.42

21

SF6 gas lock pressure (20℃ gauge)

MPa

0.4

22

SF6 gas annual leakage rate