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
Power Electronics What may happen high dV / dt? Anyone of these. Unwanted turn ON. Breakdown of J2 junction. Both A and B. Anyone of these. Unwanted turn ON. Breakdown of J2 junction. Both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is simply ___________. A triac without gate terminal None of these A single junction device A three junction device A triac without gate terminal None of these A single junction device A three junction device ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If the anode current is 800 A, then the amount of current required to turn off the GTO is about 600 A. 200 A. 20 A. 400 A. 600 A. 200 A. 20 A. 400 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°. 60° to 120°. 30° to 180°. 60° to 180°. 30° to 150°. 60° to 120°. 30° to 180°. 60° to 180°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.01 A. 0.009 A. 0.002 A. 0.004 A. 0.01 A. 0.009 A. 0.002 A. 0.004 A. ANSWER DOWNLOAD EXAMIANS APP
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