MEASUREMENT AND COMPARISON ANALYSIS OF HARMONIC LOSSES IN THREE PHASE TRANSFORMERS

Transformers are major components in power systems. The primary effect of harmonic currents on transformers is the additional heat generated by the losses caused by the harmonic contents generated by the nonlinear loads. This study presents the effect of current harmonics on three phase transformer caused by nonlinear loads. A practical approach is proposed which allows for the observation of harmonics. The total harmonic distortion and losses were analyzed and shown. Moreover, the relationship between transformer losses and harmonics are reported.