Product Definition
This product is suitable for power single bus, double bus and single bus with bypass system with rated voltage of 3.6 ~ 12kV, three-phase AC 50Hz and rated current of 630A ~ 3150A, for receiving and distributing electric energy. It can meet the use requirements of various types of power plants, substations (by) and industrial and mining enterprises.
Product main use environment
Ambient air temperature:-10~40 degrees;
Altitude: 1000m and below;
Humidity conditions: the monthly average value is not more than 95%, and the daily average value of water vapor pressure is not more than 2.2kpa;
The monthly average value is not more than 90%, and the monthly average value of water vapor pressure is not more than 1.8kpa;
Seismic intensity: no more than 8 degrees;
There is no obvious pollution such as corrosive or flammable gas;
Main technical parameters of products
Project |
Parameters |
Project |
Parameters |
Rated voltage kV |
12 |
Rated short-time power frequency withstand voltage (fracture) kV |
49 |
Rated current A |
630 |
Rated lightning impulse withstand voltage (fracture) kV |
85 |
Rated frequency Hz |
50 |
Mechanical life (times) |
2000 |
Rated active load breaking current A |
630 |
Loop resistance μΩ |
≤ 200 |
Rated closed-loop breaking current A |
630 |
Rated cable charging breaking current A |
10 |
Rated short-circuit closing current (peak) kA |
50 |
Rated short-time withstand current duration S |
3 |
Rated short-time withstand current A |
20 |
Rated peak withstand current kA |
50 |
Rated short-time power frequency withstand voltage kV |
42 |
Rated lightning impulse withstand voltage kV |
75 |