Power Electronics A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is 30° to 180°. 30° to 150°. 60° to 120°. 60° to 180°. 30° to 180°. 30° to 150°. 60° to 120°. 60° to 180°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The typical time of rising time lies between 40 - 60 µs. 1 - 4 µs. 10 - 20 µs. 90 - 100 µs. 40 - 60 µs. 1 - 4 µs. 10 - 20 µs. 90 - 100 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Light triggering mainly used in high voltage direct current transmission. low - voltage direct current transmission. medium voltage direct current transmission. all of these. high voltage direct current transmission. low - voltage direct current transmission. medium voltage direct current transmission. all of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A GTO can be turned on by applying None of these. Positive gate signal. Positive drain signal. Positive source signal. None of these. Positive gate signal. Positive drain signal. Positive source signal. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt? 1200 V/µs. 800 V/µs. 1000 V/µs. 600 V/µs. 1200 V/µs. 800 V/µs. 1000 V/µs. 600 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics For an SCR gate cathode characteristic is a straight line of 130. For triggered source volume of 15 V and allowable gate power dissipation of 0.5 W compute the gate source resistance? 11.19 ohm 108 ohm 115 ohm 111.9 ohm 11.19 ohm 108 ohm 115 ohm 111.9 ohm ANSWER DOWNLOAD EXAMIANS APP
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