KYN28-24(Z) series alternating-current metal-clad and metal-enclosed with drawable switchgear (hereinafter referred to as "switchgear") is a complete set of power distribution unit of three-phase single busbar and singl busbare bus section system of 20k V and AC50(60)Hz.
This switchgear is mainly applicable to power plants, power transmitting of middle and small sized generators, distribution of industrial and mining enterprises, electricity receiving and transmitting of secondary substations,as well as starting of large high-voltage motors, etc, realizes control protection and monitoring.
It has "five preventions", it prevents on-load pushing or pulling circuit breaker's handcart, prevents making or breaking circuit breaker by mistake, prevents closing circuit breaker when the carthing switch is at closing position, prevents entering into live compartment by mistake, and prevents closing earthing switch under live condition. It can be equipped with the NV1-24 type vacuum circuit breaker developed by our company, it really is an ideal distribution equipment with perfect performances.
It complies with the standards GB 3906, GB/T 11022 and IBC 60298.
use environmental conditions
1. Ambient air temperature: - 15 C~+40°C C;
2. Altitude: ≤ 1000m;
3. Relative humidity: daily 1 95%, mon thly ≤ 90%;
4. Seismic intensity: ≤ Ms8;
5. The installation site should be free of fire, explosive danger, serious pollution, chemical corrosion or severe vibration.
6. Nole: Please negotiate with us if your product is used beyond the range of above conditio
main technical parameters
(matched circuit breaker NV1-24)
| name |
unit |
data |
| rated voltage |
kv |
24 |
| 1min power frequency withstand voltage |
kv |
(50)65 |
| rated impulse withstand voltage |
kv |
125 |
| rated frequency |
HZ |
50(60) |
| rated current |
A |
630 1250 1600 2000 2500 3150 |
| rated current of branch busbar |
A |
630 1250 1600 2000 2500 |
| rated short time withsatnd current |
KA |
16 20 25 31.5 |
| rated peak withstand current |
kA |
40 50 63 80 |
| rated short circuit duration |
s |
4 |
| protection level |
|
the enclosure isIP4X,it is IP2X when the compartment door and circuit breaker chamber door are opened |
| mass |
kg |
800 1000 |
Audited Supplier 
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