Faults simulations due to harmonics

The implementation of power electronics and new operational contexts in electrical systems for power generation demand the need to analyze, evaluate impacts and mitigate the events of faults caused by harmonics. For this reason, in this paper we present the fundamental concepts of harmonics and some faults caused by harmonics through simulations, such as inrush currents, resonances and ferroresonances. The Matlab
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and ATP (Alternative Transients Program) programs were used for the simulations.