Browsing NTNU Open by Author "Jørstad, Kari Gjerde"
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Electromagnetic analysis and electrical signature-based detection of rotor inter-turn faults in salient-pole synchronous machine
Valavi, Mostafa; Jørstad, Kari Gjerde; Nysveen, Arne (Journal article; Peer reviewed, 2018)In this paper, rotor inter-turn faults in salient-pole synchronous machines are investigated using finite-element analysis. The machine under study is a 22 MVA eight-pole hydropower generator with fractional-slot windings. ... -
Modelling, Simulation, and On-line Detection of Rotor Fault in Hydrogenerators
Jørstad, Kari Gjerde (Master thesis, 2017)Hydropower generator is a critical component in hydropower stations and is therefore subject to a preventive maintenance strategy to avoid failures of the generator's components. Fault detection techniques can be used to ...