Question

In a three phase half wave rectifier, if per phase input voltage is 200 v, then the average output voltage is:

Answer 1

In a three phase half wave rectifier, if per phase input voltage is 200 v, then the average output voltage is:

Answer 2

•For a three phase half wave rectifier the average DC value of the output voltage waveform is given by

Vdc = 3√3 Vp/2π = 0.827 x Vpeak

Where, Vdc is the average DC output voltage of the rectifier(in volts), and

Vp is the peak voltage(in volts).

•As Vp= vrms x 1.414

On substitution, we get

Vdc = 3√3 Vp/2π x Vpeak/1.414

= 1.17 x vrms

•Given the phase voltage as 200V

So, Vdc = 1.17 x 200 = 234V.