Home » Power factor correction and harmonic resonance: A volatile mix

Power factor correction and harmonic resonance: A volatile mix

You can’t indiscriminately add power factor correction capacitors to a system without understanding how their presence will affect the system. Variable-frequency drives (VFDs) for motors, DC power supplies for computers, electronic ballasts for fluorescent lighting and other non-linear loads can create harmonics. If you don’t consider the existence of these harmonic sources and the inductive reactance of the existing system, you’ll create the potential for harmonic resonance.

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