Q1: For three phase controlled half-wave
rectifier with resistive load, if the firing
angle is a=30°;
1- Calculate the value of second thyristor
voltage ($V_{T2}$) at 0°, 30°, 60°, 90°, 120°,
150°, 180°, 210°, 240°, 270°, 300°, 330°,
360°.
2- Depending on the value obtained in section 1, draw the waveform of $V_{T2}$.
Q2: For the output voltage waveform shown below, calculate the rms voltage for this wave
form.
Given that
$V_{an} = V_m sin\omega t$
$V_{bn} = V_m sin(\omega t - 2\pi/3)$
$V_{cn} = V_m sin(\omega t - 4\pi/3)$
