Explanation: It conducts from 270 to 450, for 120 degrees. D1 starts conducting first (from 30 degrees) as it will be the most positive as it is connected to the R phase & likewise. 6. In a three-phase half wave diode rectifier using 3 diodes,
A. All diodes conduct together
B. Only two diodes conduct at a time
C. Only one diode conducts at a time
D. None of the above mentioned
Answer:A
Explanation: It conducts from 270 to 450, for 120 degrees. D1 starts conducting first (from 30 degrees) as it will be the most positive as it is connected to the R phase & likewise. 6. In a three-phase half wave diode rectifier using 3 diodes,
A. All diodes conduct together B. Only two diodes conduct at a time C. Only one diode conducts at a time D. None of the above mentioned
Explanation: 3 diodes, each conduct for 120 degree at a time. 7. In a three-phase half wave diode rectifier, if Vmp is the maximum phase voltage, then the output voltage on a R load varies from