KYN28-12 metal armoring closed switchgear (hereinafter called “the switchgear”) is our self-designed and developed product based on domestic and foreign advanced manufacturing technology. The switchgear is suitable for 3~12kV, three-phase AC 50Hz power system. It is mainly used for power transmission in the power generating plants and the medium and small generators, power distribution in the industrial and mine enterprises, and the powering and power transmission of secondary substations in the electric power system, and the start of large high-voltage motors etc. It has the functions of control, protection and monitoring. This switchgear conforms to the standards of DL/T404-91, IEC298 and GB3906, with perfect and reliable anti-misoperation functions. It is compatible with ABB’s 4 type vacuum circuit breakers, C3 series of fixed type switch. It can also be equipped with various domestic series vacuum breaker (such as VS1, VH1, VK, ZN28), in order to replace the similar foreign products. The product can be customized according to your design requirements and field conditions.

Operating conditions

Ambient air temperature: upper limit +40 ○C, lower limit –10○C.

Altitude above sea level: no higher than 1000 meters.

Relative environment humidity: daily mean value no higher than 95%, monthly mean value no higher than 90%. 

Earthquake intensity does not exceed 8 degrees.

Without fire, explosion, pollution, chemical corrosion or severe vibration. 

For the use exceeding the above mentioned scope, the user shall consult with the manufacturer.