Power harmonics management

Definition and origin of harmonics

• Definition of harmonics

• Origin of harmonics

Essential indicators of harmonic distortion and measurement principles

• Power factor

• Crest factor

• Harmonic spectrum

• r.m.s. values

• Usefulness of the various indicators of Harmonic distortion

Main effects of harmonics in electrical installations

• Resonance

• Increased losses

• Overload of equipment

• Disturbances affecting sensitive loads

• Economic impact

Solutions to mitigate harmonics

• Basic solutions to mitigate harmonics

• Harmonic filtering

• The method to optimize harmonics mitigation

External links

• VSDs for motors
• Micrologic Control Units