Product Description:
This KYN28A (KZN)-12KV Metal-Clad MID-Mount AC Switchgear indoor metal-clad mid-mounted switchgear(Hereinafter called as switchgear for short) is 3---10KV three-phase AC 50Hz distribution device of single busbar and its sectional system. As the controlling, protecting and supervising, it is applicable for power supply of plant, medium or small generator, distribution of factory, mine and enterprise, as well as the receiving, transmitting the electricity from secondary substation in the power system, restarting of large H.V. electromotor and so on. The product can meet the requirement of IEC62771 and GB3906 standard, it has the function to prevent from moving the handcart of circuit breaker alive, opening and closing circuit breaker on mistake, or doing it while the earthing switch is at closing position, entering the alive chamber, as well as the closing the interlock of earthing switch on mistake while it is alive. The product can be used together with VD4 circuit breaker by ABB Co., or VB2 VACUUM circuit breaker by GE Co., or VS1,VT2 cacuum circuit breaker made by our company, so it is the distribution device in the superior performance
Technical Parameters:
| Item |
Unit |
Data |
|
Rated voltage
(Maximum operating voltage)
|
kV |
12 |
| Rated insulation level |
1min kV rms |
kV |
42 |
| |
Lightning impulse withstand voltage |
kV |
75 |
| Rated frequency |
Hz |
50/60 |
| Main busbar rated current |
A |
630,1250,1600,2000,2500,3150,4000 |
| Branch Bus Wire Rated Current |
A |
630,1250,1600,2000,2500,3150,4000 |
| 4s Thermal stability current (virtual value) |
kA |
16,20,25,31.5,40,50 |
|
Rated machine-stability current
(peak value) *
|
kA |
40,50,63,80,100,125 |
| Protection degree |
|
IP4X |
Support and Services:
1. Ambient air temperature: -15°C~+40°C.
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.
