12kV Air Insulated Metal Clad Switchgear
ervice condition
1. Altitude≤1000m
2. Ambient air temperature: Maximum +40ºC Minimum -35ºC
3. Relative humidity: Diary average value shall be not more than 95%; monthly average
value shall be not more than 90%.
4. Ambient air should be with no corrosion, no apparent pollution with combustible gas
and etc.
5. Earthquake prevent function: process ground horizontal acceleration0.2g and vertical acceleration0.1g at the same time, adopt resonance, sine, whip wave test, safety factor should be more than 1.67
KYN28A-12 Electrical Equipment High Medium Voltage Switchgear VCB Switchgear
|
|
No.
|
Item
|
Unit
|
Data
|
|
1
|
Rated voltage
|
kV
|
6~12kV
|
|
2
|
1min. Power frequency withstand voltage
|
kV
|
42(48, isolating distance)
|
|
3
|
Lightning impulse withstand voltage(peak)
|
kV
|
75 (85 isolating distance)
|
|
4
|
Rated current
|
A
|
630~4000A
|
|
5
|
Rated short-circuit breaking current
|
kA
|
20, 25, 31.5,40,50
|
|
6
|
Rated short-circuit making current(peak)
|
kA
|
50, 63, 80
|
|
7
|
4s rated short-time withstand current
|
kA
|
20, 25, 31.5
|
|
8
|
Rated peak withstand current
|
kA
|
40.50.63.80.100.125
|
|
9
|
Protection degree
|
|
Enclosure IP4X, IP2X(VCB door opened)
|
|
10
|
Panel width
|
|
650/800/1000
|
|
11
|
Weight
|
|
500~1200
|
|
12
|
Rated frequency
|
Hz
|
50/60
|
12-40.5kV C-GIS gas insulated switchgear, more than 6,000 units have been put into operation in the past ten years; among them, 124 units are OEM Chongqing Metro Line 6 of foreign brands, 128 units are exported to Australia, 66 units in Venezuela, 160 units in North Africa and Morocco, and exported to Sweden, Britain, Malaysia, Indonesia, and other countries. There are more than 2,000 units in operation of Shanghai Electric Power Company, all 6 demonstration stations of the State Grid, Henan Electric Power Company, and plateau substations above 4600m above sea level. It also exports 150 units to Japan, 250 units to Saudi Arabia, 26 units to Italy, Belgium, and other countries.
