Low and high frequency model of three phase transformer by frequency response analysis measurement

Moustafa Sahnoune Chaouche, Samir Moulahoum, Hamza Houassine
2018 Open Physics  
The behavior analysis of the transformer is usually achieved by the frequency response analysis (FRA), which is obtained by the application of a very low AC voltage in over a wide frequency range. This paper presents a low and high frequency modelling approach of a three-phase transformer. The developed model consists of a cascade of parallel RLC cells, whose parameters are identified using the frequency response analysis data measurements obtained on each transformer phase. Thus, the proposed
more » ... Thus, the proposed model can simulate the frequency behavior of the transformer windings without reference to the geometries of the coils which makes it easily usable in the failure diagnosis field. Experimental results on a 300 VA laboratory transformer validate the proposed model.
doi:10.1515/phys-2018-0019 fatcat:m6gntsdjabg4dpiiipsh6ujsne