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Three-Phase Generator Regulation

Three-Phase Generator Regulation. Problem: For the 220 volt three-phase generator, having a Zsynch = 0.135+j1.22 Ohms Determine the voltage regulation for a rated current of 82 amps and 0.8 lagging power factor. Calculations.  = Cos -1 (0.8) = -36.8 o V OC = I /  (Z synch ) + 127

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Three-Phase Generator Regulation

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  1. Three-Phase GeneratorRegulation Problem: For the 220 volt three-phase generator, having a Zsynch = 0.135+j1.22 Ohms Determine the voltage regulation for a rated current of 82 amps and 0.8 lagging power factor

  2. Calculations  = Cos-1(0.8) = -36.8 o VOC = I /  (Zsynch) + 127 VOC = 82 / -36.8 o (0.135 + j1.22) + 127 VOC =208 volts

  3. Final Calculations • VNL = 208.8)(√3) = 361 volts • VFL = 220 volts • Reg = (VNL-VFL)/VFL = 64 %

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