Harmonics mitigation and solutions - Schneider Electric
Harmonics mitigation and solutions - Schneider Electric
Harmonics mitigation and solutions - Schneider Electric
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II. The effects of harmonics<br />
2<br />
0<br />
0 90 180 270 360 450<br />
-2<br />
-4<br />
-6<br />
●Flow of current in the neutral conductor<br />
● The H3 harmonic currents <strong>and</strong> multiples flow in the neutral<br />
conductor.<br />
● The cross-sectional area of the neutral conductor must be increased<br />
(1.7 times that of the phases for switch-mode power supplies).<br />
Phase 1<br />
Phase 2<br />
Phase 3<br />
3rd Harmonic, phase 1<br />
3rd Harmonic, phase 2<br />
3rd Harmonic, phase 3<br />
Total 3rd Harmonic<br />
I3,I9,I15<br />
<strong>Schneider</strong> <strong>Electric</strong> 11
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