Indoor High Voltage Vacuum Circuit Breaker With Lateral Operating Mechanism VSG-24

Indoor High Voltage Vacuum Circuit Breaker With Lateral Operating Mechanism VSG-24

1.It is suitable for various kinds of load and frequent operation, and multiple short-circuit current switching occasions
2.Protect the vacuum interrupter is affected by collision, dust and condensation, environment adaptable, greatly reduces the operation maintenance cost
3.With E class electrical life, M2 class mechanical life
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Product Details

VSG indoor high voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an indoor switchgear used in 24kv power system. As a power grid equipment and the protection box control unit of power design in industrial and mining enterprises, it is suitable for various kinds of load and frequent operation, and multiple short-circuit current switching occasions. Product adopts the new type of circuit breaker operating mechanism, a VSG primary part can adopt international brand embedded poles, the vacuum interrupter and main electric circuit parts enclosed into a whole, protect the vacuum interrupter is affected by collision, dust and condensation, environment adaptable, greatly reduces the operation maintenance cost, realize the  primary part of product for free maintenance, operation mechanism for less maintenance; Integrated design of operating mechanism and circuit breaker body, verified by type test, with E class electrical life, M2 class mechanical life.


Operating environmental conditions of Indoor High Voltage Vacuum Circuit Breaker With Lateral Operating Mechanism VSG-24

a. Ambient temperature: Maximum temperature: +40℃, Minimum temperature: -15℃

b. Ambient humidity: Daily average relative humidity: ≤95%, monthly average relative humidity: ≤90%, daily average vapor pressure: ≤2.2*10-3Mpa, monthly average vapor pressure: ≤1.8*10-3Mpa

c. Altitude: No more than 1000m

d. Earthquake intensity: not exceed 8 degrees

e. The surrounding air is not visibly polluted by dust, smoke, corrosive and/or flammable gases, steam or salt spray

Note: If the above requirements are exceeded, the factory shall negotiate with the factor


Main technical parameters of Indoor High Voltage Vacuum Circuit Breaker With Lateral Operating Mechanism VSG-24


Item

Unit

Value

1

Rated voltage

kV

24

2

Rated short power frequency withstand voltage (1min)

65

3

Rated lightning impulse withstand voltage (peak)

125

4

Rated frequency

Hz

50

5

Rated current

A

630

1250

630 1250

6

Rated short- circuit breaking current

kA

25

31.5

7

Rated short time withstand current

25

31.5

8

Rated duration of short-circuit

s

4

9

Rated peak withstand current

kA

63

80

10

Rated short-circuit closing current

63

80

11

Power frequency withstand voltage of auxiliary control circuit (1min)

V

2000

12

Rated single/back to back capacitor bank breaking current

A

630/400

13

Opening time

ms

20~50

14

Closing time

35~70

15

Mechanical life

times

M2

10000(630~1250/25~31.5)

16

Electrical life

E2

17

The accumulated wear thickness of moving and fixed contact is allowed

mm

3

18

Rated closing operating voltage

V

AC110  AC220

DC110  DC220

19

Rated brake operating voltage

20

Rated voltage of charging motor

21

Rated power of charging motor

W

90

22

Charging time

s

≤15

23

Contact travel

mm

13±1

24

Overtravel

3±1

25

Contact boucing duration at closing operation

ms

≤2

26

Simultaneity of three phrase closing and opening

≤2

27

Average opening speed

m/s

contact just open~6mm

0.9~1.7

0.9~1.7

28

Average closing speed

6mm~contact just closed

0.6~1.0

0.6~1.0

29

Opening rebound amplitude

mm

≤3

30

Main circuit resistance

μΩ

≤45(630)

≤35(1250)

31

Contact pressure of closing

N

3100~3700

32

Rated operating sequence

O~0.3s~CO~180s~CO


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