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