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The Siemens SGen-3000W series combines hydrogen cooling for the rotor with water‑cooled stator windings, delivering up to 99% efficiency and reduced size for turbine‑building installations. The design improves cooling performance by a factor of about 14 and lowers frictional losses, resulting in higher overall generator efficiency.
Technical features include hydrogen gas coolant at 5‑6 bar, Class F insulation, outdoor‑rated P64 enclosure, static or brushless excitation, and rail‑transportable dimensions. The generators support terminal voltages of 15‑21 kV (or 16‑27 kV) and incorporate vacuum‑pressure‑impregnated stator windings, four independent heat exchangers, and a carbon‑seal system that minimizes seal‑oil requirements.
| Frequency (50 Hz model) | SGen5-3000W |
|---|---|
| Frequency (60 Hz model) | SGen6-3000W |
| Power factor | 0.85 |
| Apparent power range | 675 MVA to 940 MVA (50 Hz), 600 MVA to 1,270 MVA (60 Hz) |
| Efficiency | up to 99 % |
| Coolant | Hydrogen gas at 5 to 6 bar |
| Thermal classification | Class F insulation system |
| Enclosure type | P64 (IEC60034-5), suitable for outdoor installation |
| Excitation | Static or brushless |
| Transport | Suitable for rail transport in most countries |
| Terminal voltage | 15 kV to 21 kV (or 16 kV to 27 kV) |
| Stator winding impregnation | Vacuum Pressure Impregnation (VPI) |
| Heat exchangers | Four vertical independent heat exchangers |
The SGen-3000W series can achieve efficiencies of up to 99 %.
Hydrogen gas at a pressure of 5 to 6 bar is used as the coolant.
Yes, the generators have a P64 enclosure that is suitable for outdoor installation.
The generators support terminal voltages of 15 kV to 21 kV (or 16 kV to 27 kV).