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AE 2019 || Day 6 || Power Electronics Quiz 2
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Question 1
A single-phase AC regulator fed from 50 Hz supply to a load, having 4 Ω resistance and 12.73 mH inductance. The control range of firing angle will be
Question 2
A freewheeling diode in phase-controlled rectifiers
Question 3
Turn on time of an SCR can be reduced by using a
Question 4
In a power circuit of 3 kV, four thyristors each of rating 800 V are connected in series. What is the percentage series derating factor?
Question 5
A modern power semiconductor device that combines the characteristics of BJT and MOSFET is
Question 6
Turn-ON of a Thyristor takes place when
Question 7
A gate turn off (GTO) thyristor has capacity to
Question 8
In the ac regulator of figure-1, the supply voltage and gate currents waveforms are as in figure-2, what is the load voltage waveform for R = 0?
Question 9
In a dual converter, the circulating current
Question 10
In a three phase voltage source inverter operating in square wave mode, the output line voltage is free from
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ESE & GATE EEGeneralNov 27ESE & GATE EE