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Side-mounted miniaturized indoor high-voltage vacuum circuit breaker

VSC-12 side-mounted miniaturized indoor high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is suitable for indoor switchgear of 12KV power system.

Side-mounted miniaturized indoor high-voltage vacuum circuit breaker

Quantity

Product Detail

General


  VSC-12 side-mounted miniaturized indoor high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is suitable for indoor switchgear of 12KV power system. It is used as protection and control unit for power grid equipment and industrial and mining enterprise power design. A variety of different types of load and frequent operation, multiple times to open short-circuit current. The product adopts the new circuit breaker operating mechanism. The VSC can use the international brand solid-sealed pole in one part, and the vacuum interrupter and the main conductive circuit parts are solidly sealed to protect the arc chamber from collision, dust and condensation. Impact, strong environmental adaptability, greatly reducing the operation and maintenance costs, truly achieving one-time maintenance-free operation of the product, less maintenance of the operating mechanism; integrated design of the operating mechanism and circuit breaker, verified by type test; with E2 electrical life , M12 mechanical life.


Normal use environment:

Ambient temperature: maximum temperature +40 ° C, minimum temperature -25 ° C.

Ambient humidity: daily average relative humidity 95%, monthly average relative humidity 90%, daily average vapor pressure 2.0 * 10-3MPa, monthly average vapor pressure 1.8 * 10-3MPa

Altitude: no more than 1000mm.

The seismic intensity does not exceed 8 degrees.

The surrounding air is not significantly contaminated by dust, smoke, corrosive or flammable gases, vapors or salt spray.

Note: Exceeding the requirements of the above normal use environment conditions, it is necessary to negotiate with the factory.



No.

Item

Unit

参数 Parameters

1

Rated voltage

KV

12

2

1 min short-time power frequency withstand voltage

42

3

Rated lightning shock resistance current(peak)

75

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 short circuit duration

S

4

9

Rated peak withstand current

KA

63

80


10

Rated short circuit closing current

63

80


11

Secondary circuit power frequency withstand voltage

V

2000

12

Rated single 7 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

Dynamic and static contacts allow wear cumulative thickness

mm

3

18

Rated closing operating voltage

V

AC110AC220
DC110DC220

19

Rated opening operating voltage

20

Rated voltage of energy storage motor

21

Energy storage motor rated power

W

90

22

Energy storage time

S

≤15

23

Contact opening distance

mm

11±1

24

Overtravel

3±1

25

Contact closing bounce time

ms

≤2

26

Three-phase separation and closing

≤2

27

Average closing speed

m/s

Contact just divided-6mm

0.9-1.7

0.9-1.7

28

Average opening speed

6mm-Contact just

0.6-1.0

0.6-1.0

29

Opening rebound value

mm

≤3

30

Main conductive loop resistance

μΩ

≤45630A
≤351250A

31

Contact closing contact pressure

N

3100-3700


32

Rated operation sequence


O-0.3s-CO-180s-CO





No comment

Product Detail

General


  VSC-12 side-mounted miniaturized indoor high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is suitable for indoor switchgear of 12KV power system. It is used as protection and control unit for power grid equipment and industrial and mining enterprise power design. A variety of different types of load and frequent operation, multiple times to open short-circuit current. The product adopts the new circuit breaker operating mechanism. The VSC can use the international brand solid-sealed pole in one part, and the vacuum interrupter and the main conductive circuit parts are solidly sealed to protect the arc chamber from collision, dust and condensation. Impact, strong environmental adaptability, greatly reducing the operation and maintenance costs, truly achieving one-time maintenance-free operation of the product, less maintenance of the operating mechanism; integrated design of the operating mechanism and circuit breaker, verified by type test; with E2 electrical life , M12 mechanical life.


Normal use environment:

Ambient temperature: maximum temperature +40 ° C, minimum temperature -25 ° C.

Ambient humidity: daily average relative humidity 95%, monthly average relative humidity 90%, daily average vapor pressure 2.0 * 10-3MPa, monthly average vapor pressure 1.8 * 10-3MPa

Altitude: no more than 1000mm.

The seismic intensity does not exceed 8 degrees.

The surrounding air is not significantly contaminated by dust, smoke, corrosive or flammable gases, vapors or salt spray.

Note: Exceeding the requirements of the above normal use environment conditions, it is necessary to negotiate with the factory.



No.

Item

Unit

参数 Parameters

1

Rated voltage

KV

12

2

1 min short-time power frequency withstand voltage

42

3

Rated lightning shock resistance current(peak)

75

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 short circuit duration

S

4

9

Rated peak withstand current

KA

63

80


10

Rated short circuit closing current

63

80


11

Secondary circuit power frequency withstand voltage

V

2000

12

Rated single 7 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

Dynamic and static contacts allow wear cumulative thickness

mm

3

18

Rated closing operating voltage

V

AC110AC220
DC110DC220

19

Rated opening operating voltage

20

Rated voltage of energy storage motor

21

Energy storage motor rated power

W

90

22

Energy storage time

S

≤15

23

Contact opening distance

mm

11±1

24

Overtravel

3±1

25

Contact closing bounce time

ms

≤2

26

Three-phase separation and closing

≤2

27

Average closing speed

m/s

Contact just divided-6mm

0.9-1.7

0.9-1.7

28

Average opening speed

6mm-Contact just

0.6-1.0

0.6-1.0

29

Opening rebound value

mm

≤3

30

Main conductive loop resistance

μΩ

≤45630A
≤351250A

31

Contact closing contact pressure

N

3100-3700


32

Rated operation sequence


O-0.3s-CO-180s-CO







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