General
KYN28-24 switchgear is a complete set of power distribution equipment for 24kV three-phase AC 50Hz single bus and single bus section system. It is mainly used for power plants, small and medium generators to transmit power, power distribution of industrial and mining enterprises, and secondary substations of electrical industry systems for control, protection, and monitoring. This switchgear meets DL/T404, IEC298, GB3906 and other standards. It has the interlock function to prevent the load-carrying withdraw circuit breaker trolley, prevent the circuit breaker from being closed or opened by mistake, to prevent the circuit breaker from being closed when the earth switch is in the closing position, to prevent entering the live compartment by mistake, and to prevent the earth switch from being closed by mistake.
Normal Use Conditions
● Ambient air temperature: -15℃~+40℃.
● Humidity conditions: Daily average relative humidity: ≤95%.
The daily average water vapor pressure ≤2.2kPa.
The monthly average relative humidity is 90%.
The monthly average water vapor pressure is 1.8kPa.
● Earthquake intensity: ≤8 degrees. Horizontal acceleration: 0.3g. Vertical acceleration: 0.15g.
● Environmental conditions: suitable for Grade 3 dirty places
● Installation location: indoor
● Installation method: anchor bolts, welding
|
Item |
Unit |
Value |
| Rated voltage |
kV |
24 |
| 1min power frequency withstand voltage |
kV |
65 |
| Lightning impulse withstand voltage |
kV |
125 |
| Rated frequency |
Hz |
50 |
| Rated current of main bus |
A |
1250, 1600, 2000, 2500, 3150 |
| Rated current of branch bus |
A |
1250, 1600, 2000, 2500, 3150 |
| Tayed short circuit withstand current (RMS) |
kA |
25, 31.5, 40 |
| Rated peak withstand current (peak value) |
kA |
63, 80, 100 |
| Voltage of auxiliary power supply |
kV |
DC110.DC220 |
| Enclosure protection level |
IP4X |
|
| Protection level (when the circuit breaker room door is opened) |
IP2X |
|
| Overall dimensions (W*H*D) |
mm |
1000X1800 X 2300 |
| Weight |
kg |
850~1450 |
