Shaanxi Longxiang Electrical Co., Ltd.
Main products:Vacuum Circuit Breaker
Products
Contact Us
  • Contact Person : Ms. Liu Yu
  • Company Name : Shaanxi Longxiang Electrical Co., Ltd.
  • Tel : 86-917-6732965
  • Fax : 86-917-6732963
  • Address : Shaanxi,Baoji,Gaoxin 19th Road, East Development Zone, Baoji,
  • Country/Region : China
  • Zip : 721306

VSm-12 series of indoor high voltage vacuum circuit breaker

VSm-12 series of indoor high voltage vacuum circuit breaker
Product Detailed
Be adopted front and rare construction for the permanent magnetic . high reliability, long endurance free maintenance

VSM series of indoor high voltage vacuum circuit breaker is adopted front and rare construction for their permanent magnetic and vacuum interrupters. The main conducting circuit is with floor-standing type, the upper and lower outlet terminal and vacuum interrupters are installed in one insulation house. The insulation house is casted with epoxy resin material by APG technology, which can protect the surface of the vacuum interrupters against dust accumulation and impact. It also has good insulation property under humid, hot and pollution ambient condition.The vacuum circuit breaker with permanent mechanism is air-insulated, used for indoor installation for different kind of power load, it is suitable for electrical net construction and reconstruction project in municipal net, rural net, mineral and railway net system, especially used in that fields which require frequently switching and have some requirement for short circuit operation cycles. This product was introduced by some international advance technique and processing technology with characteristics of intelligence, high reliability, long endurance and free maintenance etc. 

 Main Technical Specification 

S.N

Name

Unit

Data

1

Rated voltage

kV

12

2

Rated current

A

630

1000   1250

1600 2000 2500 3150

3

Rated short circuit breaking current

kA

20

25

20

25

31.5

31.5

40

4

Rated peak withstand current

kA

50

63

50

63

80

80

100

5

Rated short time withstand current

kA

20

25

20

25

31.5

31.5

40

6

Rated short circuit making current

kA

25

63

25

63

80

80

100

7

Switching operations of short circuit current 

Cycle

50

30

8

Rated operating sequence

 

0-0.3s-CO-180s-CO,0-180s-CO-180s-CO(40kA)

9

Mechanical endurance

Cycle

20000

10

Rated breaking operations of the rated current

Cycle

20000

11

Rated lightning impulse withstand voltage

kV

75

12

Rated power frequency withstand voltage

kV/min

42

13

Contact stroke

mm

11 1

14

Overtravel of contacts

mm

4 0.5

15

Closing speed

m/s

0.6 0.2

16

Opening speed

m/s

1.0 0.2

17

Contact bouncing duration at closing operation

ms

2

18

Simultaneity of three phase closing operation

ms

2

19

Closing time

ms

75

20

Opening time

ms

65

21

Driven Power voltage of Permanent magnetic mechanism

V

DC220

22

Storage life

S

<10

23

Control voltage of closing

V

110220

24

Control voltage of opening

V

110220

25

Main circuit resistance

 

45

26

Distance between phases

mm

210,275(40kA)

VSm-12 series of indoor high voltage vacuum circuit breaker



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