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Medium Voltage VS1 Indoor 11kV Vacuum Circuit Breaker

Basic Info

Model No.: VD4 vacuum circuit breaker

Product Description

    Product Description   General Description   VS1-12 (ZN63A) type indoor medium voltage vacuum circuit breaker is used as protection and control unit of three-phase AC indoor medium voltage switchgear and industrial and mining enterprise power device of 50Hz and rated voltage up to 7.2~24kV. This products comply with IEC60694, IEC62271-100.     Our advantage       Dimension     Technical data

No.

Description

Unit 

Data 

1

Rated voltage

kV

12

2

Rated insulation levels

Rated power frequency withstand voltage/1min

( phase to phase, phase to earth, open contacts)

 

kV

42

Rated lighting impulse withstand voltage

 (phase to phase, phase to earth, open contacts)

75

3

Rated frequency

Hz

50

4

Rated current 

 

 

A

630

630

1250

1600

1250

1250

1600

2000

 

 

2000

2500

 

 

2500

3150

 

 

 

4000

5

Rated short circuit breaking current

kA

20

25

31.5

40

6

Rated short time withstand current(4s)

kA

20

25

31.5

40

7

Rated short circuit making current

kA

50

63

80

100

8

Rated peak value of withstand current

kA

50

63

80

100

9

Rated operating sequence

 

O-0.3s-CO-180s-CO

O-180s-CO-180s-CO

10

Rated short circuit breaking current breaking times

times

30/20(40kA)

11

Rated cable charge breaking current

A

25

12

Rated single capacitor bank breaking current

A

630/400(40kA)

13

Rated back to back capacitor bank breaking current

 

400

14

Mechanical life 

times

10000

16

Allowed abrade cumulative thickness of moving and static contactor

mm

3

17

Clearance between open contacts

mm

11±1

18

Contact stroke

mm

3.5±0.5

19

Bounce duration of contact closing

ms

≤2

20

Non-simultaneity of three phase for opening and closing

ms

≤2

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