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1.Ratings:system voltage 3.6kV,7.2KV ,12KV,rated current up to 4000A,AC three
phase 50/60HZ.
2.Application:medium voltage gas insulated switchgear mainly applicable in the power plant,substation, mineral enterprise to receive and distribute power with the functions of controlling,protecting and
monitoring.It also can be used in places where the frequently operations are in need.
3.Standard: IEC62271-200
Working Conditions
1.Ambient air temperature: -15℃~+40℃.
2.Altitude: ≤1000m.
3.Relative humidity : Daily average≤95%, daily averange of vapour pressure≤2.2kpa.
4.Earthquake intensity: ≤magnitude 8.
5.Applicable in the places without corrosive and flammable gas and water vapor .
6.Used in place without frequently intense vibrant.
Note: Customized products are available.
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No.
|
Item
|
Unit
|
Data
|
|
1
|
Rated voltage
|
kV
|
3.6, 7.2, 12
|
|
2
|
Rated frequency of circuit breaker
|
Hz
|
50
|
|
3
|
Rated current of circuit breaker
|
A
|
630, 1250, 1600, 2000, 2500, 3150, 4000
|
|
4
|
Rated current of switchgear
|
A
|
630, 1250, 1600, 2000, 2500, 3150, 4000
|
|
5
|
Rated short -time withstandcurrent(4s)
|
kA
|
16, 20, 25, 31.5, 40, 50
|
|
6
|
Rated withstands current (peak)
|
kA
|
40, 50, 63, 80, 100, 25
|
|
7
|
Rated short -circuit breaking current
|
kA
|
16, 20, 25, 31.5, 40, 50
|
|
8
|
Rated short -circuit closingcurrent(peak)
|
kA
|
40, 50, 63, 80, 100, 25
|
|
9
|
Rated
|
1 min power frequency
|
between poles, pole to earth
|
kV
|
24, 32, 42
|
|
insulation
|
withstands voltage
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between open contacts
|
kV
|
24, 32, 48
|
|
leve
|
Lightening impulse
|
between poles, pole to earth
|
kV
|
40, 60, 75
|
|
withstands voltage (peak)
|
between open contacts
|
kV
|
46, 70, 85
|
|
10
|
Protection level
|
|
Shell: IP4X; IP2X when the CPT
|
|
and CB doors are open
|
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KYN28A-12 Medium-voltage Switchgear.pdf
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