Teaching TN TRB EE Test Series Power Electronics and Drives Phase Controlled Rectifiers Three Phase Thyristor Converter Circuits
A six-pulse thyristor bridge rectifier is connected to a balanced three-phase, 50 Hz AC source. Assuming that the DC output current of the rectifier is constant, the lowest harmonic component in the AC input current is
1
100 Hz
2
150 Hz
3
250 Hz
4
300 Hz