Turbogenerator and hydroelectric generator servicing

• 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.