Prefabricated Transformer Substation
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.
|
Items |
Unit |
Parameters |
High Voltage Part |
Rated voltage |
kV |
12 |
Rated frequency |
Hz |
50 |
Rated current of main busbar |
A |
630 |
1mm power frequency withstand voltage (to earth and between phases/disconnecting fracture) |
kV |
42/48 |
Lightning impulse withstand voltage (to earth and between phases/disconnecting fracture) |
kV |
75/85 |
Rated short time withstand current |
kA/s |
25/2 |
Rated peak withstand current |
kA |
63 |
Rated short time making current |
kA |
50 |
Rated transfer current |
A |
1500 |
Breaking current of fuse |
kA |
31.5 40 |
Low Voltage Part |
Rated voltage |
V |
400 |
Rated current of main circuit |
A |
100-4000 |
Rated limiting short circuit breaking ability |
kA |
80 |
Rated operating short circuit breaking ability |
kA |
50 (65) |
Rated short time withstand current |
kA/1s |
50 (65) |
Branch current, compensating capacity |
According to requirements of users |
Transformer |
Rated capacity |
kVA |
30-2000 |
Impedance voltage |
% |
4 4.5 |
Tapping range |
% |
±2×2.5 ±5 |
Connection symbol |
Y, yn0 D, yn11 |
Case |
Protection level of enclosure |
IP23 |
Sound level |
dB |
≤50 |
Our Best Service For You
1. Pre sale service
A. Make technical solution
B. Send quotation, technical data sheet and drawing
C. Prepare power transmission plan, testing plan,and shipment plan
2. In sale service
A. Supervise the manufacturing schedule totally in accordance with the plan
B. Send photos to customer during every manufacturing process(hold point)
C. Inform the customer one week before testing.
3. After sale service
A. Installation and commissioning, training the workers
B. Quick response within 12 hours any time
C. Provide 12 months gurantee period normally.
Order Instructions
When you choose our company product, please offer following data:
Transformer model:
Rated capacity: kVA
Phase : Three-phase
Single-phase
Frequency : 50HZ
60HZ
Rated voltage ( H.V. / L.V. ):
Tapping range: ± × %
Insulation level: LI AC / LI AC kv
Veotor group: Dyn11
Yyno
Other
Short-circuit Impedance: %
Cooling method: ONAN
ONAF
Tapping method: OLTC
OCTC
Other
Other requirement:
Notes:
We also can design special products according to customer's particular requirements.
The final dimension is subject to outline drawing.
Thanks for choosing VILLE as your reliable partner and please trust both
of us will create a brilliant future!