Deformation of transformer windings, IEC or ANSI etc. According to the standards, the frequency response is measured by the analysis method. This device is analyzed using this method. The power transformer may be exposed to various short-circuit currents during operation or physical impacts during transportation. Transformer windings may lose their stability under the strong electro-dynamic force exerted by such short circuit current. Safe operation of the transformer will be seriously affected in permanent deformations such as bending, swelling or displacement occurring in the windings. My system consists of the measurement section and the computer where the analysis software is installed.