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Unlocking the Clues in Total Harmonic Distortion for Power Quality Analysis
This white paper explores the use of Total Harmonic Distortion (THD) as a practical metric for identifying and quantifying harmonic distortion in electrical systems. It demonstrates how analyzing the interplay between voltage and current THD, alongside RMS values, can help pinpoint the sources of harmonics, even in complex load environments. The paper also discusses the trade-offs between detailed harmonic recordings and the efficiency of tracking just THD values, providing actionable insights for effective power quality monitoring.
Key topics include:
- Definition of THD
- THD and Voltage
- Case Studies: Load Interactions
Why utilities should care:
Understanding the relationship between voltage and current THD enables more accurate identification of harmonic sources, supporting targeted mitigation strategies, improved power quality, and optimized data collection without excessive storage requirements.
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