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Uncovering the Hidden Costs of Voltage Imbalance on Power Quality and Equipment Performance
This white paper explores how voltage imbalance in three-phase systems leads to significant waveform distortion, increased harmonic levels, and reduced efficiency in electrical equipment. Using field data and analysis, it details the mechanisms by which imbalance introduces negative sequence components, multiplies harmonics, and stresses transformers, ultimately impacting system reliability and operational costs. The paper also outlines practical mitigation strategies to improve power quality and equipment lifespan.
Key topics include:
- Definition and Causes of Voltage Imbalance
- Mechanisms of Waveform Distortion Due to Voltage Imbalance
- Transformer Saturation and Core Loss
- Mitigation Strategies
Why utilities should care:
Understanding the link between voltage imbalance and waveform distortion enables better asset management, reduces maintenance costs, and enhances power quality. Proactive monitoring and mitigation can prevent equipment failures, improve efficiency, and ensure regulatory compliance.
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