Air-cooled turbogenerator, 20–300 MVA, 11–16 kV
Air-cooled turbogenerators of the new series are intended for small and medium power plants; they operate together with steam and geothermal turbines of the same manufacturer, and also within combined-cycle installations.
- Type
- horizontal, non-salient-pole rotor, rotating field
- Power
- 20–300 MVA
- Voltage
- 11–13.8 kV (up to 200 MVA); 16 kV (200 MVA and above)
- Frequency
- 50–60 Hz, 3-phase
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Air-cooled turbogenerators of the new series are intended for small and medium power plants; they operate together with steam and geothermal turbines of the same manufacturer, and also within combined-cycle installations. These are horizontal synchronous generators with a non-salient-pole two-pole rotor and rotating field; the rotational speed is 3000 rpm at 50 Hz and 3600 rpm at 60 Hz. The power range of the series is from 20 to 300 MVA, and the rated voltage is 11–13.8 kV for machines up to 200 MVA and 16 kV for machines of 200 MVA and above; the rated power factor is 0.85. The generator is totally enclosed, with air-water cooling and self-ventilation: air circulates in a closed loop through air coolers, which eliminates the need for a hydrogen system. The stator winding is produced using Global VPI technology, which is vacuum-pressure impregnation of the complete assembled stator; this improves insulation reliability and simplifies maintenance. The brushless exciter is mounted cantilever-fashion on the generator shaft, which makes the unit compact and removes the need to service a brush gear. The design is based on a detailed analysis of the electromagnetic field, ventilation and cooling, mechanical strength and vibration. Shorter delivery times are achieved through automated equipment and the transition from sequential to parallel production processes. The generators comply with international standards and the norms of the main industrial countries; versions with additional requirements are possible, such as suppression of higher harmonics, operation with a leading power factor, and frequent starts and stops. Generators of this power range in the manufacturer’s reference list: 55.556 MVA for the Itoigawa biomass power plant, 125.5 MVA for the Tarahan thermal power plant, 144.6 MVA for the Fortaleza combined-cycle plant, 157.6 MVA for the Newman 5 unit, and 165.6 and 240 MVA for industrial thermal power plants in Japan. The generators are an analog of air-cooled turbogenerators for CHP plants and industrial power stations.
Technical specifications
| Type | horizontal, non-salient-pole rotor, rotating field |
|---|---|
| Power | 20–300 MVA |
| Voltage | 11–13.8 kV (up to 200 MVA); 16 kV (200 MVA and above) |
| Frequency | 50–60 Hz, 3-phase |
| Number of poles | 2 (3000 rpm at 50 Hz; 3600 rpm at 60 Hz) |
| Power factor | 0.85 (lagging) |
| Cooling | totally enclosed, air-water, self-ventilated |
| Stator insulation | Global VPI (vacuum-pressure impregnation) |
| Excitation | brushless exciter of cantilever design |
Request a price and lead time
Air-cooled turbogenerator, 20–300 MVA, 11–16 kV. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Similar equipment from other manufacturers
