Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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Substation, Prefabricated Substation, Combined Substation
NINGBO TIANAN (GROUP) CO., LTD.
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. Outdoor wind speed: ≤ 35m/s;
7. Pollution grade: Grade III;
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.
****Customer should negotiate with manufacturer if the service condition is different from above.
Our advantage
1.Various special requirement from customer or typical specification .
2.Competitive price (Real factory ).
3.Excellent quality control.
4.Good service and after sales.
5.In time delivery.
6. Manufacturing after drawings approved.
7.OEM is acceptable.We can change the design as client's requirements.
*****More information, please freely contact us. Glad to service you.
| Description | Items | Unit | Data |
| H. V. unit | Rated voltage | kV | 12 |
| Rated current of main bus-bar | A | 630 | |
| Rated short-time withstand current | kA/s | 25/2 | |
| Rated crest withstand current | kA | 63 | |
| Rated short-time making current | kA | 63 | |
| Breaking current of fuser | kA | 31.5 40 | |
| L. V. unit | Rated voltage | V | 400 |
| Rated current of main circuit | A | 100-4000 | |
| Rated max. short-circuit breaking capability | kA | 80 | |
| Rated operation short-circuit breaking capability | kA | 50(65) | |
| Rated short-time withstand current | KA/1s | 50(65) | |
| Branch current and compensation capacity | According to the requirement of customer | ||
| Transformer unit | Rated capacity | kVA | 30-2000 |
| Impedance voltage | % | 4 4.5 | |
| Tapping range | % | +/- 2x2.5 +/- 5 | |
| Vector group | Y, yn0 D, yn11 | ||
| Enclosure | Enclosure protection grade | IP23 | |
| Sound level | dB | < =55 |