Power Electronics Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be 110 A. 100 A. 120 A. 150 A. 110 A. 100 A. 120 A. 150 A. ANSWER DOWNLOAD EXAMIANS APP
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 150°. 30° to 180°. 60° to 180°. 60° to 120°. 30° to 150°. 30° to 180°. 60° to 180°. 60° to 120°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is used in SCR to protect from high dV / dt? Equalizing circuit. Circuit breaker. Fuse. Snubber circuit. Equalizing circuit. Circuit breaker. Fuse. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is equivalent to two SCRs ___________. None of these In series In inverse-parallel In parallel None of these In series In inverse-parallel In parallel ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is 90.9 %. 83.3 %. 76.3 %. 91.6 %. 90.9 %. 83.3 %. 76.3 %. 91.6 %. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ? Snubber circuit. Voltage clamping device. CB. Fast acting current limiting device (FACL fuse). Snubber circuit. Voltage clamping device. CB. Fast acting current limiting device (FACL fuse). ANSWER DOWNLOAD EXAMIANS APP
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