Transformer Substation
01
Combined Transformer Substation, American Type
Model Definition
Features
● Compact Design: Volume is only ~1/3 of domestic European-style substations with the same capacity.
● Fully Sealed & Insulated: Eliminates the need for insulation clearances, ensuring personal safety.
● Flexible Application: Suitable for both ring main and terminal systems with easy conversion, enhancing power supply reliability.
● Load-bearing Cable Joints: Operable at 200A load current, functioning as load switches in emergencies with isolator switch features.
● Dual Fuse Protection: Reduces operation costs. Plug-in fuses are thermal-magnetic (sensitive to temperature & current).
● Delta/Wye Connection & Column Structure: Offers high voltage quality, neutral point non-shift, non-heating enclosure, low noise, and good lightning protection.
Operating conditions
● Altitude: ≤1000m (special design required for higher altitudes)
● Wind Pressure: ≤10Pa (equivalent to 35m/s)
● Humidity: Daily avg. ≤95%, monthly avg. ≤90%
● Temperature: -25°C to +40°C
● Vibration Resistance: Horizontal acceleration 0.4m/s²; vertical acceleration 0.15m/s²
● Seismic Intensity: 8 degrees
● Installation Inclination: ≤3°
● Environmental Requirements: Free from corrosive/flammable gases, water vapor pollution; no severe vibration at installation site.
Technical specifications
|
No. |
Items |
Unit |
Data |
|
1 |
Rated voltage |
kV |
10/0.4 (HV/LV) |
|
2 |
Maximum operating voltage |
kV |
12 (HV) |
|
3 |
Rated frequency |
Hz |
50 |
|
4 |
Rated capacity |
kVA |
50-1600 |
|
5 |
1 min power frequency withstand voltage |
kV |
35 |
|
6 |
Lightning impulse withstand voltage |
kV |
50 |
|
7 |
Cooling method |
ONAN |
|
|
8 |
High voltage backup fuse breaking current |
kA |
50 |
|
9 |
Plug-in fuse breaking current |
kA |
25 |
|
10 |
Ambient temperature |
℃ |
-35~+40 |
|
11 |
Allowable temperature rise of coil |
℃ |
65 |
|
12 |
No-load voltage regulation |
±5% or ±2×2.5% |
|
|
13 |
Noise level |
dB |
50 |
|
14 |
Protection level |
IP43 |
Note: The above data is subject to change due to technical improvement.