(b) Amplitudes of harmonicAmplitudes of harmonic voltages are estimated from the graph in Fig. 4-21. For 39.5, normalized harmonic voltages are V6 /Vm L 0.21 and V12 /Vm L 0.10. Using Vm (480), V6 143 V, and V12 68 V, harmonic currents are then
(b) Amplitudes of harmonicAmplitudes of harmonic voltages are estimated from the graph in Fig. 4-21. For 39.5, normalized harmonic voltages are V6 /Vm L 0.21 and V12 /Vm L 0.10.Using Vm (480), V6 143 V, and V12 68 V, harmonic currents are then