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This paper presents a modeling approach of a three-phase transformer using the FRA response, the developed model consists of a cascade of parallel RLC cells, the parameters are identified using the FRA data measurements obtained on each transformer phase over a wide frequency range. The proposed model can simulate the frequency behavior of the transformer without need to the coils geometries which...
Measurement of the frequency response is now commonly used in the industry to assess the mechanical condition of transformer windings. The analysis of the results, the so-called Frequency Response Analysis (FRA), is based on comparison with a reference measurement which is either a previous measurement on the same unit, a measurement on an identical transformer or a measurement on another phase of...
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