Main technical paremeter

Number

Item

Unit

Data

1

Rated voltage

KV

24

2

Rated short time power frequency withstand time

65(fracture 79)

3

Lightning pluse
withstand voltage

125(fracture 145)

4

Rated frequency

Hz

50

5

Rated current

A

630
1250

630 1250 1600
2000 2500 3150

630 1250 1600
2000 2500 3150

6

Rated short circuit
breaking current

KA

20/25

31.5

40

7

Rated short time
withstand current

20/25

35.5

40

8

Rated short circuit duration

S

4

9

Rated peak withstand current

KA

50/63

80

100

10

Rated short circuit closing current

50/63

80

100

11

Secondary circuit power frequency withstand voltage(1min)

V

200

12

Rated capacitor closing surge

KA

12.5(Frequency>1000Hz)

13

Mechanical life

time

20000

14

Rated current breaking time

20000

15

Rated short circuit current breaking time

time

50(40KA</=30)

16

Storage energy time

S

</=10

17

Clearance between open contacts

mm

16+/-1

18

Overtravel

3.5+/-0.5

19

The jump time of contact close brake

MS

</=2(40KA</=3)

20

Average opening speed

M/S

1.5+/-0.2

21

Average closing speed

0.8+/-0.2

22

Rated sequence of oprations

O-0.3S-CO180S-CO