In a single phase semi-converter the number of thyristors is

More Questions from Power Electronics

• A NAND gate has 3 inputs and one output. The number of thyristors required for this gate are
• In a single phase full wave regulator, the rms current in each thyristors is Ir The run load current is equal to
• A class A chopper has an input voltage of 200 V. Ton = 1.5 ms and Toff = 4.5 ms. The duty cycle, average output voltage and ripple factor respectively are
• The symbol in figure is for
• The commutation method in an inverter, is
• The output wave of a cycloconverter consists of a number of segments derived from the input wave.
• An SCR is triggered at 80° in the positive half cycle, only. The rms anode current is 25 A. If the firing angle is changed to 160°, the rms current is likely to be
• Which chopper circuit operates in quadrants 1 and 4?
• Assertion (A): A fully controlled bridge converter can operate in first and fourth quadrant. Reason (R): A semi converter is cheaper than a full converter.
• In auxiliary commutated chopper, the peak value of thyristor current is

Discussion & Comments