V. Behjat
Department of Electrical Engineering, Azarbaijan Shahid Madani university, Tabriz, Iran. Email: [email protected]
[ 1 ] - Characterization of Power Transformer Electromagnetic Forces Affected by Winding Faults
Electromagnetic forces in power transformer windings are produced by interaction between the leakage fluxes and current passing them. Since the leakage flux distribution along the windings height is in two axial and radial directions, so the electromagnetic forces have two components, radial and axial. There is a risk that a large electromagnetic force due to the short circuit or inrush current...
[ 2 ] - Power Auto-transformer Mechanical Faults Diagnosis Using Finite Element based FRA
Frequency response analysis (FRA) is a sensitive method established for testing the mechanical integrity of transformers. However, interpretation of FRA signature still needs expert opinions and there is no FRA interpretation code generally accepted. Various mechanical faults with different extents on power transformers are required to aid FRA interpretation. To address this challenge, in...
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