Power quality issues in a distribution network impact of neutral current due to nonlinear loads

Abstract

Proliferation of nonlinear loads like modern office equipment cause harmonics in the supply. Harmonics appearing in the supply will tend to flow the neutral current even for three phase balanced fundamental currents in the source. Proper attention for these neutral currents is to be given in the aspect of neutral conductor sizing. This paper addresses the related issues of the harmonics and concern of neutral sizing.