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Professional Indoor Vacuum Circuit Breaker Anti Pumping Electrical Solutions

Categories Indoor Vacuum Circuit Breaker
Brand Name: Comking
Model Number: CKVB-24/GE
Certification: Type Test Report
Place of Origin: China
Payment Terms: L/C, T/T, Western Union
Packaging Details: Wooden Packing
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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Professional Indoor Vacuum Circuit Breaker Anti Pumping Electrical Solutions

1.CKVB-24/GE is the circuit breaker with right lateral operating mechanism.


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

DescriptionUnitParameter
Rated voltagekA24
Rated short-time withstand voltagephase-to-phase phase-to-earthkA65
open contactkA79
Rated lighting impulse withstand voltagephase-to-phase phase-to-earthkA125
open contactkA145
Rated frequencyHz50
Pole centre distancemm210, 230
Rated currentA6301250
Rated short-time withstand current(4s)kA2531.52531.5
Rated peak withstand currentkA63806380
Rated short-circuit breaking currentkA2531.52531.5
Rated short-circuit making currentkA63806380
Rated breaking cable charging currentA25
Rated capacitor bank inrush making currentkA12.5
Rated single capacitor bank breaking currentA630
Rated back to back capacitor bank breaking currentA400
Operating sequence/Opening-0.3s-Closing/Opening-180s-Closing/Opening
Mechanism lifetimes20000
Opening times for rated currenttimes20000
Opening times for rated short-circuit currenttimes50
Clearance between open contactsmm13±1
Overtravelmm4±1
Average closing speedm/s0.8~1.2
Average opening speedm/s1.1~1.7
Closing timems35~70
Opening timems20~50
Bounce time for contact’s closingms≤2
Asynchronous time for three-phase contacts closing / openingms≤1
Allowable accumulated wearing thickness of moving/fixing contactmm3

4. Standard

---- GB1984-2003

---- IEC60056-2001

---- GB/T16927-1997

---- GB/T 4473-2008

---- DL/T403-2000

---- JB/T3855-2008


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