Harmonics and Neutral Currents

Before the advent of computers, variable speed drives, soft starters and other non-linear loads, the only source of harmonics in power systems are industrial plants using arc-furnaces. These arc-furnaces require …

Harmonics and Power Quality

An ideal power quality for a source of energy to an electrical load is represented by a pure sine wave waveform of voltage. The term pure means that it does …

Phase Sequence of Harmonics

Harmonics of different orders have different phase sequences. What is phase sequence any way? In simple terms, a phase sequence is the order of rotation of phase vectors relative to …