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Understanding Harmonics

Category: Harmonics/Interharmonics

Understanding Harmonics

Understanding Harmonics_04

Understand harmonics and how to use PMI equipment to measure them.


With the increase in nonlinear loads (VFDs, high efficiency heat pumps, electronic power supplies, etc.) and the reduction in excess distribution capacity, harmonic distortion is an increasingly common power quality issue.


Most PQ equipment today can measure harmonics, but without a good understanding of what harmonics are, the numbers aren’t very helpful.


Here the fundamental concepts behind harmonics are described.


This White Paper Includes:

  • Some Basic Formulas and Definitions
  • Harmonics
  • Computing System Resonances
  • Example

Download White Paper Here