A three-phase AC to DC diode bridge rectifier is supplying from a three-phase, 440 V source. The rectifier supplies a purely resistive load. The average DC voltage across the load will be V
A three-phase AC to DC diode bridge rectifier is supplying from a three-phase, 440 V source. The rectifier supplies a purely resistive load. The average DC voltage across the load will be V
Right Answer is:
1029.20
SOLUTION
The average output voltage of 3 phase bridge rectifier is
Vdc = 1.654Vm
Where
Vm = Maximum voltage
Given
RMS voltage = 440 Volt
Peak voltage = √2 × 440
Therefore average voltage
Vdc = 1.654 × √2 × 440
Vdc = 1029.20 Volts