How to Find The Source of Harmonics
If you need to find the source of harmonics follow these five simple techniques.
Harmonics are “Non-Linear” current or voltage in an electrical system. Any waveform that deviates from a perfect sine wave has harmonics.
Any non-linear load draws harmonic currents and therefore produces harmonic voltage distortion, by producing non-sinusoidal voltage drops across system wiring and transformers.
Harmonics are voltages or currents that are multiples of the fundamental frequency in a circuit. These are specified by their harmonic number or multiple of the fundamental frequency.
Finding the source of significant harmonic distortion observed on a power system is an important part of being able to mitigate the distortion. When harmonic distortion occurs in a distribution system, sometimes it is not apparent which customer is responsible for the power line distortion.
At this point, it is important to formulate a strategy of determining the origin of the power distortion in order to put in place a barrier to keep the distortion from propagating into the rest of the distribution system and on to other customers...
This white paper includes:
- Finding the Source
- Method 1. Harmonic Current Flow - "Follow the Current"
- Method 2. Harmonic Power Flow Direction
- Method 3. Relative Magnitudes Approach
- Method 4. Common Sense Approach - Evaluate Likely Sources, Customers
- Method 5. Resonance Clues
CLICK HERE TO READ THE FULL ARTICLE: https://hubs.ly/H0bkdsw0