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Front Panel Installation Indoor Vacuum Circuit Breaker Environmental Friendly

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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Front Panel Installation Indoor Vacuum Circuit Breaker Environmental Friendly

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


2. 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

3. Standard

----GB1984-2003

---- IEC60056-2001

---- GB/T16927-1997

---- GB/T 4473-2008

---- DL/T403-2000

--- J B/T3855-2008


4. Working Condition

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

4.2 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

4.3 Altitude: ≤1000m

4.4 Earthquake intensity: ≤magnitude 8

4.5 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)


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