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wecome indoor 11kv vd4 vacuum circuit breaker vcb

Basic Info

Model No.: Vd4

Product Description

  Product Description   General Description   VW1-12VCB is employed with mature APG technology, directly encapsulating the vacuum interrupter and  main circuit in the epoxy resin poles as to form solid insulation type, representing the higher level of designing and  manufacturing of medium voltage vacuum circuit breakers in the contemporary world.     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

    Company profile  

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