Generator maintenance

Fortum eNext generator plant expertise is based on decades of experience in generator maintenance and overhauls as well as the modernisation of generator excitation and protection systems.

Generator maintenance

Strong expertise in generator maintenance

Generator maintenance is carried out with overhaul inspections at set intervals which are supplemented by various measurements, if necessary. We are independent from suppliers and our specialists have wide experience in different power plant technologies. We have expanded our expertise on turbo generators covering all brand of generators. Our  generator maintenance workshop is in Västerås Sweden. 


  • Long-term condition management planning
  • On-line and off-line condition monitoring (mechanical and electrical)
  • Endoscope inspections
  • Overhaul and spare part planning
  • 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
  • Long-term service agreements for all provided services

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 ring
  • Rewindings
  • High-speed balancing


Jonas Holmgren
Sales and Product Manager, Generators
Tel: +46 76 783 4937
[email protected]