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VSG-24 Series Indoor High Voltage Vacuum Circuit Breaker

Short Description:


Product Detail

Product Tags

VSG-24 series lateral type indoor high voltage vacuum circuit breaker applies to three-phase AC 50(60)Hz 24KV power system, which can be used for switching load current, overload current and fault current in industrial and mining enterprises, power plant, transformer substation and suitable for frequent operation occasions It also widely applies to projects, as power plant, power system, petrifaction, metallurgy, metro, airdrome, building, etc.

Environmental Conditions

♦ Ambient temperature: -10°C-+40°C;

♦ Altitude: <1000m;

♦ Relative humidity: daily average <95%, monthly average <90%;

♦ Earthquake intensity: <8 level;

♦ Places without fire, explosion hazard, serious filthy, chemical corrosion, as well as intense vibration.

Main Technical Parameters

No

Item

Unit

Value

1 Rated voltage kV

24

2 1 min power frequency withstand voltage

65

3 Rated lightning impulse withstand voltage

125

4 Rated frequency Hz

50

5 Rated current A

630, 1250

6 Rated short circuit breaking current

kA

25, 31.5

7 Rated short circuit making current (peak)

63, 80

8 Rated short time withstand current

25, 31.5

9 Rated peak value withstand current

63, 80

10 Rated short circuit duration s

4

11 Rated operating sequence

O-0.3s-CO-180s-CO

12 Secondary circuit power frequency withstand voltage (1min)

V

2000

13 Rated sing e/back-to-back capacitor bank breaking current

kA

630/400

Breaking time ms

20 〜50

1? Opening time

35 〜70

16 Mechanical life

times

10000

17

Electrical life

E2 class

18

Allowed cumulative wearing thickness of moving contact and fixed contact mm

3

19

Clearance between open contacts mm

13±1

20

Over travel mm

3±1

 

No

Item

Unit

Value

21

Average closing speed

m/s

0.6〜1.0

22

Average opening speed

m/s

0.9〜1.7

23

Rated voltage of energy storage motor V

DC 220/DC110

24

Power of energy storage motor W

90

25

Contact closing bounce time

ms

<2

26

Three phase opening and closing asynchronism

ms

<2

27 Each phase conductive circuit resistance

uQ

<45(630A); <35(1250A)

28 Contacts pressure N

3100 〜3″。

29 Charging time s

<15

General Structure Drawing and Installation (unit: mm)

mgh (1)

mgh (2)

A

B

C

210

550

901

230

600

941

275

650

1031


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