Alstom has solid knowledge and extensive experience of the turbines and generators, as well as other high- and low-voltage electrical equipment installation, commissioning, maintenance, modernization, spare part deliveries and repairs. We also offer long-term maintenance contracts, training, power increase and calculation of process values and condition monitoring.
The steam turbine fleet in Finnish power plants consists of nearly ten different original manufacturer's turbines. Alstom has long experience in the maintenance of these machines.
We have local workforce
ALSTOM Finland Oy reinforced its local maintenance expertise through an acquisition in Finland in 2007. This acquisition now enables integrated project management, including the design, manufacture, installation and commissioning. our site staff consists of skilled supervisors, fitters and welders.
We invest heavily in our staff's work safety awareness and train our resources to long-term plant maintenance tasks. We employ a number of welders qualified for demanding welding tasks.
We offer the following services:
Turbines
• Preventive and corrective maintenance
• Annual inspections
• Limited inspections 10000h, 20000h - Wide range of maintenance every 6-8 years: 80000h
• Supply of spare parts for inspection and maintenance
Gas Turbine Maintenance
• Periodic inspections
• Maintenance works
• Control and automation renewals
• Supply of spare parts
Steam Turbine Maintenance
• Annual maintenance
• Power increases
• Efficiency improvements
• Changes in steam turbines (extraction incision, changes in the wing, control valves, turbine controls, automation rebuilds, etc.)
• Control and automation renewals
• Supply of spare parts
Generators
Generator inspections and maintenance (wide range / limited = condition inspection):
• Rotor outlet
• Bearing and retaining rings NDT inspections
• Bearing bracket insulation condition
• Cleaning of Air cooler section and pressure test
• Stator and rotor coil electrical measurements
• Heating tests
• voltage regulation performance audit
• Generator and field circuit breaker inspection
• Magnetisation circuit components and magnetisation generators electrical measurements
• Generator protections operation inspection with control setting values
• Instrument transformers, control and fitness
• Possible stator and rotor rewinding