#309 - 100 MVA 220/25 kV
| Quantity | : 1 pce |
| Brand | : Trafo-Union |
| Year of Manufacture | : 1971 |
| Application | : Power Transformer |
| Basic Transformer Concept | : oil-immersed |
| Number of Phases | : 3-phase |
| Rated Power | : 100 000kVA |
| Method of Cooling | : ODAF |
| Voltage Ratio (prim./sec.) | :220000 / 25000 V |
| Tapping Range | : 191200 - 248800 V |
| Frequency | : 50 Hz |
| Connection | : Yy0 |
| Total Weight with cooling | : ~234 000 kg |
| Weight of Oil | : ~60 000kg |
| Transport weight | : ~135 000kg |