Main Points Remember in Harmonics (Electrical Power)
** Harmonics current and voltage are generated by non-linear loads
** Harmonics distortion is a form of pollution
** Dedicated standards specify the limits ( IEE 51, IEC/EN 61800-3)
Sources of Harmonics: Variable Speed AC/DC drives(VFD), UPS Systems, Rectifier, SMPS, Static converter, Thyristor controlled systems Frequency controlled Induction Furnaces, Arc Furnaces, Welding, lighting, When saturation is reached in Transformers, Motors, Generators.
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