• MAXIMUM APPARENT POWER
    2,250 MVA

    the world's most powerful generator

  • Years in operation
    50+

    across 50 Hz and 60 Hz geographies

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.

Large generator overview

GIGATOP 2-pole GIGATOP 4-pole GTD
Cooling technology (rotor windings) Hydrogen Hydrogen Water
Cooling technology (stator windings) Water Water Water
Power factor 0.8 to 0.9 0.85 to 0.9 0.85 to 0.90
Apparent power 500 to 1,400 MVA 1,100 to 2250 MVA 540 to 1,100 MVA
Efficiency up to 99% up to 99% up to 99%
Terminal voltage 22 to 27 kV 18 to 27 kV 19.5 to 21.5 kV
Values are 50 & 60Hz combined
Topair generator

Generators for SMRs

Our versatile air- and hydrogen-cooled generators are suited for small to medium reactors with 50 - 750 MVA power output. Their compact sizes allow for easy worldwide delivery, installation, and maintenance.

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