題組內容

PROBLEM 1 (40%) Figure 1(b) shows the waveforms of the line-to-line voltage and the phase current of a three-phase motor (balanced Y-connected load) in Fig. 1(a). Answer the following questions.62ce7b69103fa.jpg62ce7b80de674.jpg

(c) (20%) Connect balanced Y-connected capacitors in parallel with the motor to increase the power factor. Determine the capacitance value in each phase so that the power factor is close to 1.