Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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Prefabricated Compact Transformer SubstationFor Wind Power Generation With 24KV
Service condition:
1. Altitude: ≤ 1000m (above sea level)
2. Ambient temperature: Max. 40C Min. -25C
>>Max. Monthly average temperature: ≤ 35C
>>Max. Yearly average temperature: ≤ 25C
3. Relative humidity: Daily average value≤ 95%, monthly average value≤ 90%
4. Max. Daily difference in temperature: 25C
5. Sunlight intensity: 0.1W/CM2 (wind speed 0.5M/S);
6.Pollution grade: Grade III;
7.Outdoor wind speed: ≤ 35m/s;
8. Rain proof grade: Grade 3;
9. The gradient on installation spot shall be not more than 3° ;
10. Ability of anti-earthquake: Horizontal acceleration of ground surface is 0.2g
Vertical acceleration of ground surface is 0.1g;
11. Installation spot: The spot should has no fire/explosion danger/serious pollution/chemical
corrosion and exquisite shake.
*****More information, please freely contact us. Glad to service you.
Reference specification for 24kV:
|
Item |
Unit |
Parameters |
||
|---|---|---|---|---|
| HV Unit | Rated Voltage | kV | 24 | |
| Rated Frequency | Hz | 50 | ||
| Rated Main Busbar Current | A | 630 | ||
| 1min Power Frequency Withstand Voltage To Earth, Between Phases/to open gap | kV | 50/65 | ||
| Lightning Impulse Withstand Voltage to Earth and Between Phases/ to open gap | kV | 95/110 | ||
| Rated Short-time Withstand Current | kA/s | 25/2 | ||
| Rated Peak Withstand Current | kA | 63 | ||
| Rated Short-time Making Current | kA | 63 | ||
| Fuse Breaking Current | kA | 31.5 | ||
| Circuit Breaker Breaking Current | kA | 25 | ||
| LV Unit | Rated Voltage | V | 400 | |
| Main Circuit Rated Current | A | 100~4000 | ||
| Rated Limit Short-circuit Breaking Capacity | kA | 80 | ||
| Rated Operating Short-circuit Breaking Capacity | kA | 50(65) | ||
| Rated Short-time Withstand Current | kA/1s | 50(65) | ||
| Branch Current, Compensation Capacity | According to users’ requirements | |||
| Transformer Unit | Rated Capacity | kVA | 30~2000 | |
| Resistance Voltage | % | 4； 4.5 | ||
| Tapping Range | % | ±2X2.5； ±5 | ||
| Connected Group | Y,yn0； D,yn11 | |||
| Enclosure | Degree of Protection | HV Room | IP33 | |
| LV Room | IP33 | |||
| Transformer Room | IP23 | |||
| Protection Level | IP23 | |||
| Sound Level | dB | ≤50 | ||