Product Categories
500kV power transformers are mainly used for long-distance transmission and distribution of electric power. They convert high voltage into voltage levels suitable for urban power supply networks or specific equipment, ensuring the stability and reliability of power transmission.
| Parameter | Unit | Value |
| Product Model | – | ODFS22-334000/500-NX1 |
| Rated Capacity | kVA | 334,000 (334/334/100 MVA) |
| Rated Voltage Ratio | kV | (525/√3)/(230/√3±2×2.5%)/36 |
| Short-Circuit Impedance | % | Measured: HV–MV approx. 18.0 (at main tap) |
| Rated Frequency | Hz | 50 |
| Vector Group | – | Ia0i0 |
| Insulation Level | kV | HV: SI950/LI1175/AC510; MV: LI480/AC200; LV: LI200/AC85 |
| Cooling Method | – | ONAN/ONAF (70%/100%) |
| No-Load Loss | kW | ≤87 (guaranteed design value) |
| Load Loss | kW | Measured: HV–MV approx. 531 (at 75°C) |
| Temperature Rise Limit | K | Top oil: 55; Winding average: 65 |
| Noise (Sound Pressure Level) | dB(A) | Measured: 61 (no-load, at 0.3 m) / 63 (loaded, at 2 m) |
