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Understanding and Mitigating Resonance Risks in Power Factor Correction Systems
This white paper explores the unintended consequences of installing power factor correction capacitors, specifically the creation of parallel resonant points that can amplify harmonics and stress system components. It details how resonance occurs, the factors influencing its severity, and practical solutions such as harmonic filtering and careful system design to prevent equipment damage, nuisance trips, and power quality issues.
Key topics include:
- Interaction of Capacitors and Resonance
- System Impedance
- Avoiding and Resolving Resonance Issues
- Recording Data for Resonances
Why utilities should care:
Addressing resonance from power factor correction is critical for minimizing equipment failures, preventing costly outages, and maintaining power quality. Proactive design and monitoring reduce risks of blown capacitors, tripped breakers, and compliance violations.
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