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