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12kV Vacuum Circuit Breaker CKVB-12/G
12kV Vacuum Circuit Breaker CKVB-12/G
Specifications
Place of Origin :
China
Brand Name :
Comking
Certification :
Type Test Report
Model Number :
CKVB-12/G
Packaging Details :
Plywood Carton
Payment Terms :
T/T, L/C
Rated Voltage :
12kV
Description

1.Description

CKVB-12/G is a solid insulated vacuum circuit breaker with epoxy resin pole and working in a voltage range maximum up to 12kV. The CKVB-12/G family includes CKVB-12/GA, CKVB-12/GB, CKVB-12/GC, and CKVB-12/GD.

2. Working Condition

2.1Ambient air temperature: -25℃～+40℃

2.2Ambient humidity:

----relative average daily humidity: ≤95%

----relative average daily water vapor pressure: ≤2.2kPa

----relative average monthly humidity: ≤90%

----relative average monthly water vapor pressure: ≤1.8kPa

2.3Altitude: ≤1000m

2.4 Earthquake intensity: ≤magnitude 8

2.5 Ambient air doesn’t obviously pollute by dust, smoke, corrosive or combustible gas, vapors or salt spray.

(Exceeding above working condition is available as customized product)

3.Technical Data

Description

Unit

Parameter

Rated voltage

kV

12

Short-time withstand voltage

kV

42

Lighting impulse withstand voltage

kV

75

Rated frequency

Hz

50

Rated current

A

630

1250

1600

2000,2500

3150,4000

Pole centre distance

mm

150

210

150

210

275

210

275

275

275

Rated short-circuit breaking current

kA

25

31.5

25

31.5

25

31.5

25

31.5

40

40

31.5

40

31.5

40

31.5

40

40

Rated short-circuit making current

kA

63

80

63

80

63

80

63

80

100

100

80

100

80

100

80

100

100

Short-time withstand current(4s)

kA

25

31.5

25

31.5

25

31.5

25

31.5

40

40

31.5

40

31.5

40

31.5

40

40

Rated peak withstand current

kA

63

80

63

80

63

80

63

80

100

100

80

100

80

100

80

100

100

Operating sequence

Opening-0.3s –closing opening-180s –closing opening

Opening time

ms

20～50

Arc time

ms

≤15

Closing time

ms

30～70

Average closing speed

m/s

0.5～0.8

Average opening speed

m/s

0.9～1.2

Bounce time for contact’s closing

ms

≤2

Asynchronous time for contact’s closing / opening

ms

≤2

Allowable accumulated wearing thickness of moving/fixing contact

mm

3

4.Standard

----GB1984-2003

----IEC60056-2001

----GB/T16927-1997

----GB/T 4473-2008

----DL/T403-2000

----JB/T3855-2008

Contact: Summer Yang
Email: international-sales01@zhcomking.com;comkingswitchgear@gmail.com
http://www.comkingswitchgear.com
www.zhcomking.com

Product tags

33kv vacuum circuit breaker

,

12kv vacuum circuit breaker

,

3ah5 vacuum circuit breakers
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12kV Vacuum Circuit Breaker CKVB-12/G

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Product Detail
Place of Origin :
China
Brand Name :
Comking
Certification :
Type Test Report
Model Number :
CKVB-12/G
Packaging Details :
Plywood Carton
Payment Terms :
T/T, L/C
Contact Supplier
12kV Vacuum Circuit Breaker CKVB-12/G

Zhuhai Comking Electric Co.,Ltd.

Active Member
9 Years
guangdong, zhuhai
Since 2006
Business Type :
Manufacturer
Main Products :
Load Break Switch, Ring Main Unit, Outdoor Circuit Breaker
Employee Number :
300~500
Certification Level :
Active Member
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