a) A single phase full wave AC voltage controller has resistive load…
Previous year question for Power Electronics.
Question
a) A single phase full wave AC voltage controller has resistive load of $R=10\;\Omega$ and root mean square input voltage is $V_s=120\text{V}$, $60\text{Hz}$. The thyristor is switch on for $n=25$ cycles and is off for $m=75$ cycles. Determine
i) rms value of output voltage (10)
ii) input power factor and
iii) rms current of Thyristors.
b) Discuss the principle of working of single-phase to single-phase step down mid-point type Cycloconverter with relevant waveforms and circuit diagram. (10)
- Year: 2018
- Subject: Power Electronics