Maintenance and Repair of Hydroelectric Power Plants
Maintenance and Repair of Hydroelectric Power Plants
Regular maintenance is essential for the proper operation of a hydroelectric power station.
Professional repairs and regular maintenance of hydroelectric power stations have an impact on their service life (approx. 40–50 years) and maximum energy yield. Maintenance should be a proactive, planned process, whereas repairs must be carried out reactively in response to damage.
Maintenance
- Inspection: Continuous monitoring of the system’s condition.
- Servicing: Regular cleaning, lubrication, and adjustment of components.
- Repair: Repairing damage and replacing defective parts.
- Improvement: Optimizing the system to increase efficiency.
Our Services
- Turbine repair: Repair of damaged turbine bearing journals, blade mounting grooves, or reworking of pressure rings.
- Pump repair: Disassembly, inspection, and replacement of seals, bearings, and impellers. Optimization and improvement.
- Cavitation damage & wear: Welding or replacement of impeller blades, particularly in Kaplan and Pelton turbines, to restore efficiency.
- Modernization (Retrofit): Replacement of old generators and turbines.
- Mechanics & Hydraulics: Maintenance of hydraulic control systems, bearing repairs (e.g., white metal), and inspection of steel hydraulic components.
Our spare parts program for hydroelectric power plants
Turbine spare and wear parts
- Impeller (Runner): Blades or the complete impeller.
- Seals & Bearings: These include shaft seals (e.g. mechanical seals), guide bearings and thrust bearings.
- Guide vanes: Wicket gates and their adjustment mechanisms.
- Nozzle components: Replacement nozzles and nozzle needles for Pelton turbines.
Spare parts for generators
- Bearing technology: Rolling bearings, plain bearings and bearing assemblies.
- Electrical components: Carbon brushes, voltage regulators, rectifier units, current and voltage transformers.
- Rotor & stator components: Windings, coils, fans, shaft seals.
- Connecting elements: Couplings (e.g. N-EUPEX, ARPEX, BIBEX).
- Monitoring: Temperature probes and sensors.
