Beijing Huadong Electric Co., Ltd.
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  • Contact Person : Ms. Wang Grace
  • Company Name : Beijing Huadong Electric Co., Ltd.
  • Tel : 0086-10-67668022
  • Fax : 0086-10-87697121
  • Address : Beijing,Beijing,Room 408, B unit, No.1 building, No.16, Ronghua South Road, Beijing Economy technologyl developed area,Beijing.
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12KV Vacuum circuit breaker (type:VH4)

12KV Vacuum circuit breaker (type:VH4)
Product Detailed
It is made and checked in accordance with relevant GB, DL and IEC standards. Mechanical life under 31.5KA can be 50,000 times.

Technical Parameters of VH4 CB

Serial No.

Items

Unit

Technical Data

1

Rated Voltage

KV

12

2

Rated Frequency

HZ

50

3

Rated Insulation Level

1 min Rated Power Frequency withstand Voltage  

KV

42

Rated Lightning Pulse withstand Voltage

KV

75

4

Rated Current

A

630

1000

1250

1600

2000

2500

3150

4000*

5000*

5

Rated Short Circuit Breaking Current

Rated Short time Withstand Current (4s)

KA

 

20

20

20

25

25

25

25

31.5

31.5

31.5

31.5

31.5

40

40

40

40

40

40*

40*

50

50

50

50

50

50*

50*

6

Rated Short Circuit Makeup current (peak)

Rated Peak Withstand Current

KA

60

60

60

75

75

75

75

95

95

95

95

120

120

120

120

120

120*

120*

150

150

150

150

150

150*

150*

7

Rated Short Circuit Current Breaking Times

Times

30,50

20*

8

Operation squence

0-0.3s-CO-180s-CO**

9

Closing Time

ms

50±15

10

Opening Time

ms

50±15

11

Energy Storage time

s

≤15

12

Mechanical Life

Times

50000

30000

10000*

13

Rated Power of Energy Storage Motor

W

200

300

14

Rated Voltage of Energy Storage Motor

V

--110           --220

15

Rated Voltage of Opening and Closing Electromagnet

-110   -220

16

Rated Current of Opening and Closing Electromagnet

A

5

17

Rated Current of Over current Trip Device

A

5

18

Rated Current of Auxiliary switch

A

AC10,   DC5

Pls Note:

The Technical Parameters with * are not used in VH4-EP, **When the Rated circuit breaking current is 50KA ,the Operation Sequence is “0-180s-CO-180s-CO”

Rated circuit breaking current ≤31.5KA    Rated circuit Breaking time is 50 times

Rated circuit breaking current >31.5KA     Rated circuit Breaking time is 30 times

12KV Vacuum circuit breaker (type:VH4)



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