VS1-12 11kV 12kV Indoor High Voltage 800A-3150A Vacuum Circuit Breaker VCB

Short Description:

  •  VS1-12 series of indoor vacuum circuit breaker with common insulated cylinder is three-phrase A.C. 50 Hz indoor power distribution equipment with the rated voltage of 12KV. It’ s used for protecting controlling the electrical equipment in the fields of industry and mining enterprise, power plants and substation.This type vacuum circuit breaker conforms to national standards and the stipulation of IEC standard, the capability reaches grade of M2-E2-C2.
  •  The product adopts composite insulation way,spring charged operation and rod push mechanism,with the characteristics of small volume, compact design and reliable operation. It can easily match with the switchgear and meet the “Five Preventions” demands.
  •  This kind of vacuum circuit breaker can be used for many kinds of switchgear like KYN28(GZS1). This series of products include: VCB truck isolation truck and Fuse truck, etc.

Product Detail

Product Tags

vv

Service conditions

Normal service conditions of switchgear as follows:
Ambient temperature:
Maximum +40°C
Maximum 24 hour average +35°C
Minimum (according to minus 15 indoor classes) -10°C
Ambient humidity:
Daily average relative humidity less than 95%
Monthly average relative humidity less than 90%
Earthquake intensity less than 8 degree
Height above sea level less than 1000m
Saturated vapor pressure:
average pressure of a day  should be no more than2. 2kPa
the average pressure of a month  should be no more than 1.8kPa

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

Product parameters

NO

Item

Units

Technical parameters

1

Rated voltage

KV

12

2

Rated short-duration power frequency withstand voltage

42/48(Interphase, ground/fracture)

3

Rated lightning impulse withstand voltage

42/48(Interphase, ground/fracture)

4

Rated frequency

Hz

50

5

Rated current

A

630   1250

630 1250 1600

2000 2500 3150

630 1250 1600

2000 2500 3150

6

Rated short-circuit breaking current

KA

20/25

31.5

40

7

Rated short-time withstand voltage

20/25

31.5

40

8

Rated short circuit duration

S

4

9

Rated peak withstand current

KA

50/63

80

100

10

Rated short circuit closing current

50/63

80

100

11

Secondary circuit power frequency withstand voltage (1min)

2000

12

Rated single / back to back capacitor group breaking current

A

630/400(40kA:800/400)

13

Rated capacitor bank closing current

12.5 (frequency is not greater than)

14

Mechanical life

KA

20000

15

Rated current breaking times (electrical life)

20000

16

Rated short circuit current breaking times

times

50(40KA≤30)

17

Dynamic and static contacts allow wear cumulative thickness

mm

3

18

Energy storage time

s

≤10

19

Contact opening distance

mm

11±1

20

Overtravel

3.5±0.5

21

Contact closing bounce time

ms

≤2(40KA≤3)

22

Three-phase split/closed period

≤2

23

Average opening speed (contacts are separated by -8mm)

m/s

1.2±0.2

24

Main conductive loop resistance

0.6±0.2

25

Main conductive loop resistance

μΩ

≤50(630A)≤45(1250A)

≤40 (1600,2000A)≤35 (2500A or more)

26

Rated operation sequence

0-0.3s-Co-180s-Co

 

NO.

 Items

 Unit

 Value

1

 Rated voltage

KV

40.5

2

 Rated Current

A

1600

2000

3

 Rated short circuit breaking current

KA

20

25

31.5

4

 Rated short-circuit current (peak)

50

63

80

5

 Rated short (heat stable) current

20

25

31.5

6

 Rated peak withstand (dynamic stability) current

50

63

80

7

 Rated short circuit duration

S

4

8

 Rated insulation level

 1 min power frequency withstand voltage

 Dry

KV

95

 Wet

80

 Lightning impulse withstand voltage (peak)

185

9

 Rated operating sequence

 Times

20

10

 Rated short-circuit current breaking times

ms

≤80

11

 Full-time off (with spring operating mechanism)

o-0.3s-co-180s-co

12

 Mechanical life

10000

13

 Ratod operating voltago

AC110,220;DC110,220

14

 Contact opening distance

20

15

 Contact overtravel

5±1

16

 Bounce time

≤5

17

 DC resistance per phase circuit

≤120

18

 Circuit Breaker Dimensions (L x W x H)

2460x2400x500

19

 Circuit breaker with a total mass of body

1100

Main features:

1.Mechanical and electrical durability During rated current, breaking times can reach to 10000, 20000 During rated
short-circuit current, breaking times can reach to 20, 30 and 50 times.

2. The circuit breaker has complete functions. It is used to switch on/off various loads as specified by DL standards, such as method 1-5, capacitor, out-of-phase conditions.

3. Easy maintenance Normally, it just needs to clean the operating mechanism and add lubricants.

4.Vertical insulating tube Protect it from various environmental impacts.

5.With complete product portfolio Rated current from 630A to 5000A Rated short-circuit current form 20kA to 50kA

6.It has the features of series, strong versatility, convenient use and easy maintenance. All products have passed
100 running-in tests according to reliability principle in the factory before delivery, so as to ensure the reliability.

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