Short Description:
The produced KYN28-24(SDK1-24) type armored withdrawable AC metal-enclosed switchgear (hereinafter referred to as switchgear) is suitable for indoor three-phase 50/60Hz, 24kV rated voltage power systems. It is mainly used in power plants, substations, industrial and mining enterprises, and high-rise buildings to receive and distribute electric energy, and to control, protect, and monitor circuits.

Environmental conditions: Maximum temperature: +40°C, Minimum temperature: -15°C, and the average value measured within 24 hours does not exceed 35°C.
Temperature conditions are as follows: The daily average relative humidity does not exceed 95%; the monthly average relative humidity does not exceed 90%; the daily average water vapor pressure does not exceed 2.2kPa; the monthly average water vapor pressure does not exceed 1.8kPa;
Altitude does not exceed 1000m;
The surrounding air is not significantly polluted by dust, smoke, corrosive and flammable gases, steam, or salt spray;
Vibration or ground motion from outside the switchgear and control equipment is negligible;
The amplitude of electromagnetic interference induced in the secondary system does not exceed 1.6kV.
| No. | Name | Unit | Value |
|---|---|---|---|
| 1 | Rated Operating Voltage Closing Trip Coil Opening Trip Coil | V | AC220, AC110, DC220, DC110 |
| 2 | Operating Current Closing Trip Coil Opening Trip Coil | A | AC220 or DC220 is 1.1 AC110 or DC110 is 3.1 |
| 3 | Energy Storage Motor Power | W | 80, 100 |
| 4 | Rated Voltage of Energy Storage Motor | V | AC220, AC110, DC220, DC110 |
| 5 | Electrical Energy Storage Time | s | ≤ 10 |