Power harmonics management

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The problem: why is it necessary to detect and eliminate harmonics?

Standards

General Information

Main effects of harmonics in installations

Resonance

Increased losses

Overloads on equipment

Disturbances affecting sensitive loads

Economic impact

Essential indicators of harmonic distortion and measurement principles

Power factor

Crest factor

Power values and harmonics

Harmonic spectrum and harmonic distortion

Total harmonic distortion (THD)

Usefulness of the various indicators

Measuring the indicators

Devices used to measure the indicators

Procedures for harmonic analysis of distribution networks

Keeping a close eye on harmonics

Detection devices

Solutions to attenuate harmonics

Basic solutions

Harmonic filtering

The method

Specific products

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