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

VIB -40.5 series of indoor high voltage vacuum circuit breaker

VIB -40.5 series of indoor high voltage vacuum circuit breaker
Product Detailed
It can meet standard GB1984-2003 and IEC62271-100:2001. High reliability,competitive price,excellent credit and best quanlity.

VIB series vacuum circuit breaker has taken into consideration of reliable interlock function which can be frequently operated at the rated current and with the capability of many times operations of breaking short-circuit current and fault current. This series of vacuum circuit breaker is an integrated unit by adopting the front and rear arrangement between operating mechanism and vacuum interrupters. It can be used for fixed installation unit and also can be used for independent track by equipped with Chassis.

Main Technical Specification

S.N

Name

Unit

Data

1

Rated voltage

kV

40.5

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 operation of short circuit switching current

Cycle

50

30

8

Rated operating sequence

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

9

Mechanical endurance

Cycle

10000

10

Rated breaking operations of the rated current

Cycle

20000

11

Rated lightning impulse withstand voltage(full wave)

kV

75

12

Rated power frequency withstand voltage

kV/min

42

13

Contact stroke

mm

111

14

Overtravel of contacts

mm

40.5

15

Closing speed

m/s

0.60.2

16

Opening speed

m/s

1.00.2

17

Contact bouncing duration at closing operation

ms

2

18

Simultaneity of three phase closing and opening

ms

2

19

Closing time

ms

75

20

Opening time

ms

65

21

Distance between phases

mm

150,210,275(40kA)

VIB -40.5 series of indoor high voltage vacuum circuit breaker



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