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24kV Vacuum Ckt Breaker , Vacuum Type Circuit Breaker Convenient Maintenance

Zhuhai Comking Electric Co.,Ltd.
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24kV Vacuum Ckt Breaker , Vacuum Type Circuit Breaker Convenient Maintenance

Place of Origin : China

Brand Name : Comking

Certification : Type Test Report

Model Number : CKVB-24/G

Packaging Details : Wooden Packing

Payment Terms : L/C, T/T, Western Union

MOQ : 1set

Price : To be discussed later

Delivery Time : 10-15 work days

Rated voltage : 24kV

Rated current : 630A,1250A

Rated frequency : 50Hz

Type : Indoor

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1. Description

CKVB-24/G is a solid insulated vacuum circuit breaker with epoxy resin pole and working in a voltage range maximum up to 24kV. The CKVB-24/G family includes CKVB-24/GB, CKVB-24/GE.

2. Working Condition

2.1 Ambient air temperature: -25℃~+40℃

2.2 Ambient 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

2.3 Altitude: ≤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 kA 24
Rated short-time withstand voltage phase-to-phase phase-to-earth kA 65
open contact kA 79
Rated lighting impulse withstand voltage phase-to-phase phase-to-earth kA 125
open contact kA 145
Rated frequency Hz 50
Pole centre distance mm 210, 230
Rated current A 630 1250
Rated short-time withstand current(4s) kA 25 31.5 25 31.5
Rated peak withstand current kA 63 80 63 80
Rated short-circuit breaking current kA 25 31.5 25 31.5
Rated short-circuit making current kA 63 80 63 80
Rated breaking cable charging current A 25
Rated capacitor bank inrush making current kA 12.5
Rated single capacitor bank breaking current A 630
Rated back to back capacitor bank breaking current A 400
Operating sequence / Opening-0.3s-Closing/Opening-180s-Closing/Opening
Mechanism life times 20000
Opening times for rated current times 20000
Opening times for rated short-circuit current times 50
Clearance between open contacts mm 13±1
Overtravel mm 4±1
Average closing speed m/s 0.8~1.2
Average opening speed m/s 1.1~1.7
Closing time ms 35~70
Opening time ms 20~50
Bounce time for contact’s closing ms ≤2
Asynchronous time for three-phase contacts closing / opening ms ≤1
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


Product Tags:

vcb circuit breaker

      

electrical circuit breaker

      
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