1. Description
KYN28A-12 is the switchgear apply in the single busbar power system and single busbar sectionalized power system with three-phase AC 50Hz,7.2~12kV.It can be used for receiving & distributing electric power of the transmission and distribution control.
2. Working Condition
Indoor ambient temperature:
Max. temperature: +40℃
Daily average temperature: +35℃
Min. temperature: -15℃
Indoor ambient humidity:
Daily average relative humidity: ≤95%
Monthly average relative humidity: ≤90%
Altitude for place of installation : ≤1000m
Earthquake intensity: ≤magnitude 8
Applicable in the places without fire, explosive risk, serious polluted and chemical corrosive.
(Exceeding above working condition is available as customized product)
3. Technical Data
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Rated voltage
|
kV
|
12
|
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Rated insulated level
|
1min Power frequency withstand voltage (available value)
|
kV
|
42
|
|
Lighting impulse withstand voltage(peak value)
|
kV
|
75
|
|
Rated frequency
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Hz
|
50
|
|
Rated current of main busbar
|
A
|
630,1250,1600,2000,2500,3150,4000﹡
|
|
Rated current of branch busbar
|
A
|
630,1250,1600,2000,2500,3150,4000
|
|
4s Thermal stability current (available value)
|
kA
|
16,20,25,31.5,40﹡﹡
|
|
Rated dynamic stability current(peak value) ﹡﹡﹡
|
kA
|
40,50,63,80,100
|
Remark:
﹡----it needs to be equipped with ventilation device.
﹡﹡----At the rate of 40kA is 3 seconds.
﹡﹡﹡----The short-circuit capacity of instrument transformer needs to be considered separately.
4. Standard
----IEC62271-200:2003
----GB3906-2006
----GB/T11022-1999
----DL/T 404-2007
Contact: Summer Yang (+86 15916286020)
Email: international-sales01@zhcomking.com;comkingswitchgear@gmail.com
http://www.comkingswitchgear.com
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24kV Metal-clad Enclosed Switchgear KYN28A Images
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