Power Electronics What is used to protect a thyristor from high di / dt conditions? Inductor. Snubber circuit. Voltage clamping device. Fuse. Inductor. Snubber circuit. Voltage clamping device. Fuse. 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 ? Fast acting current limiting device (FACL fuse). CB. Snubber circuit. Voltage clamping device. Fast acting current limiting device (FACL fuse). CB. Snubber circuit. Voltage clamping device. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Leakage current flows through the thyristor in reverse blocking mode. both forward and reverse blocking mode. forward blocking mode. forward conduction mode. reverse blocking mode. both forward and reverse blocking mode. forward blocking mode. forward conduction mode. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac can pass a portion of ___________ half-cycle through the load. Both positive and negative Only negative Only positive None of these Both positive and negative Only negative Only positive None of these 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 60° to 180°. 30° to 150°. 30° to 180°. 60° to 120°. 60° to 180°. 30° to 150°. 30° to 180°. 60° to 120°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the emitter terminal of a UJT is open, the resistance between the base terminal is generally ___________. Extremely low Low None of these High Extremely low Low None of these High ANSWER DOWNLOAD EXAMIANS APP
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