What is the output ripple frequency of a 3-phase full wave rectifier?
The output ripple frequency is 6 times the supply frequency.
What factors affect the DC output voltage of 3-phase full wave rectifier?
The DC output voltage depends on the line-to-line voltage of the 3-phase supply and the load connected. Higher supply voltage and lower load current results in higher output voltage.
How is the firing of thyristors controlled in a 3-phase full wave rectifier?
The thyristors are triggered using a firing circuit which provides gate pulses at appropriate time intervals matching the phase shift between supply voltages.
What is the purpose of a DC filter in a 3-phase rectifier?
The DC filter consisting of inductors and capacitors is used to reduce the ripples in the DC output voltage and current of the rectifier.
What is the ripple factor of a 3-phase full wave controlled rectifier?
The ripple factor of a 3-phase full wave controlled rectifier is around 0.48 which is much lower than the ripple factor of 0.866 for a single phase half wave rectifier.