Turbogenerator and hydroelectric generator servicing

50 – 165 MW turbogenerators

  • Replacement of indirectly-cooled generators with air-cooled turbogenerators allowing for an increase in generator capacity.
  • Rotor modernization involving retaining-ring replacement with body-mounted retaining rings made of corrosion-resistant steel.
  • Complete and partial replacement of stator windings.
  • Modernization of operating performance control and monitoring systems.

165 – 320 MW turbogenerators

Modernization of ТВВ-series hydrogen-water-cooled turbogenerators involving the rewinding of stator windings and a transition to ТВФ-series turbogenerators with indirect hydrogen-cooling of the stator winding and the elimination of a stator winding water-cooling system:


  • TVV-165-2 to TVF-165-2
  • TVV-200-2 to TVF-200-2
  • TVV-320-2 to TVF-320-2

200 – 300 MW ТГВ turbogenerators

  • Replacement of ТГВ-200 and ТГВ-200M generators with air-cooled or hydrogen-water-cooled generators.
  • Replacement of ТГВ-300 generators with hydrogen-water-cooled generators.
  • Modernization of operating performance control and monitoring systems.

200 – 500 MW turbogenerators

  • Stator modernization including the replacement of lamination end zones and stator winding replacement.
  • Rotor modernization involving retaining-ring replacement with new design rings made of corrosion-resistant steel.
  • Stator replacement with new, modernized design stators.
  • Increase in generator capacity to cover turbine modernization needs.
  • Modernization of stator winding heat-monitoring equipment.
  • Modernization of operating performance control and monitoring systems.

800 – 1000 MW ТВВ and ТЗВ turbogenerators

  • Stator modernization including the replacement of lamination end zones and stator winding replacement.
  • Complete or partial replacement of four-pole generators’ stator windings.
  • Old stator replacement with new, modernized design stators.
  • Modernization of stator winding heat-monitoring equipment.
  • Modernization of operating performance control-and-monitoring systems.

Hydroelectric generators

  • Stator replacement.
  • Replacement of lamination cores and stator windings.
  • Rotor pole modernization.
  • Modernization of hydrogenerator thrust bearings and other bearings using composite materials.
  • Modernization of operating performance control and monitoring systems.