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Vacuum Circuit Breaker VCB VED-12KV 630A 1000A 4000A from JUCRO Electric

VCB,vacuum circuit breaker from JUCRO Electric

Product Detail

VED-12 series indoor high voltage vacuum circuit breaker VCB    is suitable for 12kV air-insulated indoor

switchgear, used as protection and control unit of power equipment of industrial & mining enterprise. Due

to the super excellence, it is especially suitable for locations where requires the frequent operation under

rated working current or multiple breaking under short circuit breaking current. The circuit breaker adopts

the integrated design of operating mechanism and circuit breaker body, servers as not only fixed

installation, but also draw-out type equipped with a special propelling mechanism.

VED-12 has two main types. 

One is Draw-out type. Model No. is VED-12D. 

The other is Fixed type. Model No. is VED-12F.

 

Main specifications and technical parameters

No.

Item

Unit

parameter

1

Rated voltage

KV

12

2

Rated frequency

Hz

50

3

Rated lightning impulse withstand voltage (1 min)

KV

75

4

Rated short-time power frequency withstand voltage (1 min)

KV

42

5

Rated short-circuit breaking current

KA

20

25

21.5

40

6

Rated current

A

630 1000

1250

630 1000

1250 1600

1250 1600 2000 2500

1600 2500 3150 4000

7

Rated peak withstand current

KA

50

63

80

100

8

Rated shorted-time withstand current (4S)

KA

20

25

31.5

40

9

Power frequency withstand voltage of secondary circuit (1min)

V

2000

10

Rated operation sequence


O-0.3s-CO-180s-CO

O-180s-CO-180s-CO +

11

Rated breaking current of (single/back to back)capacitor bank

A

630/400

800/400

12

Opening time(rated voltage)

ms

20~50

13

Closing time(rated voltage)

ms

30~70

14

Rated short-time current breaking times

Times

50

30

15

Mechanical life

Times

30000

16

Rated opening/closing voltage

V

AC110,220; DC110,220

17

Rated voltage of energy-storage motor

V

AC110,220; DC110,220









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Product Detail

VED-12 series indoor high voltage vacuum circuit breaker VCB    is suitable for 12kV air-insulated indoor

switchgear, used as protection and control unit of power equipment of industrial & mining enterprise. Due

to the super excellence, it is especially suitable for locations where requires the frequent operation under

rated working current or multiple breaking under short circuit breaking current. The circuit breaker adopts

the integrated design of operating mechanism and circuit breaker body, servers as not only fixed

installation, but also draw-out type equipped with a special propelling mechanism.

VED-12 has two main types. 

One is Draw-out type. Model No. is VED-12D. 

The other is Fixed type. Model No. is VED-12F.

 

Main specifications and technical parameters

No.

Item

Unit

parameter

1

Rated voltage

KV

12

2

Rated frequency

Hz

50

3

Rated lightning impulse withstand voltage (1 min)

KV

75

4

Rated short-time power frequency withstand voltage (1 min)

KV

42

5

Rated short-circuit breaking current

KA

20

25

21.5

40

6

Rated current

A

630 1000

1250

630 1000

1250 1600

1250 1600 2000 2500

1600 2500 3150 4000

7

Rated peak withstand current

KA

50

63

80

100

8

Rated shorted-time withstand current (4S)

KA

20

25

31.5

40

9

Power frequency withstand voltage of secondary circuit (1min)

V

2000

10

Rated operation sequence


O-0.3s-CO-180s-CO

O-180s-CO-180s-CO +

11

Rated breaking current of (single/back to back)capacitor bank

A

630/400

800/400

12

Opening time(rated voltage)

ms

20~50

13

Closing time(rated voltage)

ms

30~70

14

Rated short-time current breaking times

Times

50

30

15

Mechanical life

Times

30000

16

Rated opening/closing voltage

V

AC110,220; DC110,220

17

Rated voltage of energy-storage motor

V

AC110,220; DC110,220











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