Transcription of Power Factor Correction and Harmonic Resonance: …
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Power Factor Correction and Harmonic Resonance: …
PQ CORNERP ower Factor Correction andHarmonic resonance : A Volatile MixCapacitors may be meant to correct problems,but they can also introduce them if incorrectly specifiedBy Daniel J. Carnovale, , Eaton/Cutler-Hammer16 EC&M June 2003 Industrial and commercial cus-tomers constantly scrutinize theirmonthly electrical usage, lookingfor ways to save money. Installingpower Factor Correction capacitorscan reduce costly penalties im-posed by the utility and help pay for thecapacitors in a relatively short amount oftime. The payback period can be as shortas four to six months for capacitors in-stalled on Power systems in locations likehospitals and paper , you can t indiscriminatelyadd Power Factor Correction capacitors toa system without understanding howtheir presence will affect the system.
correction banks. You must evaluate ev-ery step (capacitor size) to determine pos-sible resonant conditions. The Figure at left shows a six-step capacitor bank ver-
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