Photo: Juliet Landrø/ HydroCen
To run production as profitably as possible without compromising the condition of the components in the hydropower plant, it is important to have the right information about how the components are affected by different operating patterns.
Most hydropower plants in Norway are designed to run with relatively constant production, where components slowly and surely wear out and age over time. This could mean, for example, that the insulation of the generator windings deteriorates over time or the development of cracks in the impeller of the turbine.
To avoid major damage, costly repairs and downtime, the wear must be detected and repaired in time. This can be done, for example, by condition monitoring and fault detection of tunnels, turbines, and generators, among other things. When production is also increasingly controlled by varying market prices, with increased use of peaking power (start/stop) and variable production, the components of the hydropower plant face increased wear/degradation and there is an increasing risk of breakdown.