Generator maintenance

Our generator plant expertise is based decades of experience in generator maintenance and overhauls as well as modernisation of generator excitation and protection systems.

Generator maintenance is carried out with overhaul inspections at set intervals which are supplemented by various measurements, if necessary.

Fortum's services include:

  • Long term condition management planning
  • On-line and off-line condition monitoring (mechanical and electrical)
  • Endoscope inspections
  • Overhaul and spare part planning
  • Minor and Major overhauls
    • Any cleaning, inspections, and coatings that are required
    • Bearing maintenance work
    • Inspections (and any necessary replacements) of winding wedges
    • Repairs to windings and joints and stator re-windings
    • Rotor overhauls
      • Inspections and replacement of retaining rings
      • Re-windings
      • High speed balancing
  • Fixed-term inspections of generator protection relays
  • Inspections of excitation and synchronisation devices
  • Fault investigations
  • Installations of new machine units
  • Protection of client’s interests, ”Owner’s Engineer” service
  • Repair and engineering works at Turbine Workshop Center at Naantali
  • Long term service agreements for all provided services