Transformer tests, frequency domain spectroscopy and frequency sweep response analysis method

The spectroscopy is a technique by which we can see graphically the interaction between matter and energy radiated, either as a function of wavelength or frequency, allowing us to isolate and identify the structural design of a material. Technique applied to processors gives us a tool to measure losses and capacitance in the insulation, depending on the frequency response of a signal applied spectroscopy from which we get the frequency domain (DFR). The method of analysis of frequency response sweep SFRA (Sweep Frequency Response Analysis) in turn is a diagnostic technique to detect deformations and displacements (includingelectrical and mechanical failures) on the windings in power transformers. In bothcases the detection problem directly translates into the type of maintenance to be performed, considering high costs of time and money.