Depreciação dos Transformadores em Função do Envelhecimento Causado pelas Distorções Harmônicas de Corrente

This paper presents a case that consists of an A4 (13,8 kV) consumer category, which uses distribution transformer to connect their installations the power system. Some measurements were done, and nonsinuidal load currents is verified. An analysis was carried out based on concepts in IEEE std 57.110/2018 57.91/2011 standards, with objective quantifying harmful phenomena occurs transformer, depreciation provided this property function harmonic currents. The results obtained demonstrate there may be loss life expectancy accelerating assets, negatively interfering costs company.