KYN28A-12 high-voltage switchgear

1.1 KYN28A-12 high-voltage switchgear is suitable for three-phase exchange 50Hz, 7.2 ~ 12kV single-bus and single-bus segmented power system, which has the "five defense" function. The transfacation part of the switchgear can be configured with components such as vacuum circuit breakers and vacuum contactors.

1.2 Standards and specifications

Kyn28-12 switchgear meets standards such as IEC298, GB3906, DL404.

The protection level of the switchgear shell is IP4X. When the door of the circuit breaker is opened and the hand car is removed, the protection level is IP2X.

During the installation and operation of the system, we must abide by all related IEC specifications and national or local related security guides

1.3 Working conditions

1.3.1 Normal working conditions

The normal working conditions of the Kyn28-12 switchgear are as follows:

Indoor ambient temperature:

High temperature +40 ° C

The average daily average value is not greater than +35 ° C

Low temperature -15 ° C

Interior environment humidity:

The average daily relative humidity is 95%and below

The average monthly relative humidity is 90%and below

The altitude of the installation place is 1000m and below

Earthquake intensity does not exceed 8 degrees

There are no places where fires and explosions are dangerous, and there are no severe filth and chemical corrosion.

1.3.2 Special working conditions

For special working conditions, you must consult the manufacturer. Manufacturing plants and users should obtain unanimous opinions on special working conditions.

l When the altitude of the installation place is higher than 1000m, the reduction of the strength of the air medium on the insulation level.

l If the ambient temperature exceeds the limit, compensate or limit the flow of traffic in the design of the bus and branches. Installing ventilation devices in the cabinet will help the heat dissipation of the switchgear.