It means that the efficiency is maximum at a load when the copper-loss (variable loss) equals the core-loss (constant loss). Thus for maximum efficiency Copper loss(Variable loss) = Core loss(constant loss) Core loss = 450 Watt = Copper loss Cooper loss = 450 Watt
The average value of a sin wave for the complete cycle i.e 2π is given as Vavg = 2⁄π Vpeak 100 = 2⁄π Vpeak VPeak = 157 V Or Vavg = 0.636 × VPeak VPeak = 157 Now Peak to Peak Voltage is given as VPK − VPK = 2 × VPeak VPK − VPK = 2 × 157 = 314 V VPK − VPK = 314 V
EXAMIANS