Интерпретация результатов анализа состояния обмоток силовых трансформаторов методом частотного отклика

A review of the regulatory documentation governing the analysis of power transformers winding state by the frequency response method (SFRA) is presented, formulas for calculating indicators for numerical comparison of normograms and defectograms are given. An example of a power transformer winding analysis with the presence of its deformation as a result of testing it for electrodynamic resistance to short circuit currents is also given.