Arabelle Solutions' hydrogen and water-cooled generators are suitable for large and very large nuclear reactors.
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MAXIMUM APPARENT POWER2,000 MVA
the world's most powerful generator
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Years in operation50+
across 50 Hz and 60 Hz geographies
With its powerful configuration, our GIGATOP 4 pole generator can deliver up to 2,235 MWA of low-carbon energy to the grid.
Power and efficiency
Developed with reliability and efficiency in mind, our stator winding bars are constructed with hollow cooling tubes and water boxes made of stainless steel instead of copper to reduce risk of aging effects, e.g., tubes clogging due to copper oxide build up. The increased single path water flow in our stator winding cooling system maintains a high level of efficiency.
Proven reliability
The first generator was developed in the 1970s. Over the years have benefited from continuous manufacturing and maintainability improvements such as robotic inspections rotor in-situ to achieve lower CapEX and OpEX across the entire life cycle.
GIGATOP overview
| GIGATOP 4-pole | GIGATOP 2-pole | |
|---|---|---|
| Power factor (50 Hz) | 0.85 to 0.9 | 0.8 to 0.9 |
| Power factor (60 Hz) | 0.9 | 0.85 |
| Apparent power (MVA) - 50 Hz | 1,280 MVA to 2,235 MVA | 590 MVA to 1, 400 MVA |
| Apparent power (MVA) - 60 Hz | 950 to 2,000 MVA | 510 to 1, 120 MVA |
| Efficiency (50 Hz) | Up to 99% | Up to 99% |
| Efficiency (60 Hz) | Up to 99% | Up to 98.9% |
| Terminal voltage (50 Hz) | 24 kV to 27 kV | 18 kV to 27 kV |
| Terminal voltage (60 Hz) | 22 kV to 26 kV | 22 kV to 26 kV |
| Reliability (50 Hz) | >95% | >95% |
| Reliability (60 Hz) | >95% | >95% |
Generators for small and medium reactors
Our versatile air-cooled TOPAIR and TOPAC generators series are suited for small to medium reactors with 40 - 400 MVA power output. Their compact sizes allow for easy worldwide delivery, installation, and maintenance.
Generator services
Covering both Arabelle Solutions and other OEM generator fleets, from single inspection and maintenance to full upgrade, our experts support all generator servicing needs.