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Home    Vacuum Circuit Breaker    12kv outdoor Vacuum Circuit Breaker

12kv outdoor Vacuum Circuit Breaker

12kv outdoor VCB
AC three-phase, 50HZ
630A, 1250A
OEM & ODM,Complete equipment
CCC,ISO9001,CE, CB,IEC60898
info@knkong.cn
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Product Introduction

12kv outdoor VCB (ZW32 series) spring mechanism outdoor vacuum breaker, a kind of outdoor pillar high voltage vacuum circuit breaker, with 50Hz, three-phase alternating current and 11KV rated voltage. It apply to open circuit、close the load current、 overload current and short -circuit current and other power distribution system, such as substation、industrial and mining

 

Normal service condition

Altitude

≤1000m

Ambient temperature

Max

+40℃

Min

-15℃

Ambient humidity:

Maximum average humidity

24 hour ≤95%

1 month ≤90%

Maximum water vapor pressure

24 hours ≤2.2kpa

1 month ≤1.8kpa

The ambient air has no obvious pollution of dust smoke, corrosive or combustible gases, steams or smog

 

12kv VCB Technical Parameters

No.

Item

Unit

Parameter

1

Rated voltage

KV

12

2

Rated insulation level

1min power frequency withsand voltage

Dry

 

KV

42

Wet

34

Lightning impact withstand pressure

75

3

Rated current

A

630   1250

4

Rated short-circuit breaking current

KA

20   25

5

Rated single capacitor bank breaking current

A

400/630

6

Rated operating sequence

 

O-0.3s-CO-180s-CO

7

Rated short circuit breaking current breaking times

times

30

8

Rated peak value of withstand current

 

KA

50   63

9

Rated short-circuit marking current

50   63

10

Rated short-time withstand current

20   25

11

Rated short-time withstand current

s

4

 

 

12

Full breaking time

 

 

ms

≤75

Break-brake time

(Shunt trip)

Max operating voltage

15~50

Rated operating voltage

15~50

Min operating voltage

30~60

Closing time

25~50

13

Mechanical endurance

times

30000

14

Rated voltage of energy storage motor

V

AC110/220,DC110/220

15

Operating mechanism

 

Spring mechanism

16

Contact allowabled wear thickness

mm

3

17

Rated input power of energy storage motor

W

250

18

Overcurrent trip

Rated current

A

5

Tripping accuracy

%

±10

19

Weight

Kg

110(140including disconnecting switch)

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