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 ? CB. Fast acting current limiting device (FACL fuse). Snubber circuit. Voltage clamping device. CB. Fast acting current limiting device (FACL fuse). Snubber circuit. Voltage clamping device. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After peak point, the UJT operates in the ___________ region. Negative resistance Saturation None of these Cut-off Negative resistance Saturation None of these Cut-off ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The turn-on time of an SCR with inductive load is 20 µs. The puls train frequency is 2.5 KHz with a mark/space ratio of 1/10, then SCR will Turn on if pulse frequency us increased to two times. Not turn on. Turn on. Turn on if inductance is removed. Turn on if pulse frequency us increased to two times. Not turn on. Turn on. Turn on if inductance is removed. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is 60. 65. 3.714. 37.14. 60. 65. 3.714. 37.14. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The latching current of GTO should be of order 1 A. 100 mA. 2 A. 500 mA. 1 A. 100 mA. 2 A. 500 mA. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which triggering is the most reliable? dV / dt triggering. Forward voltage triggering. Gate triggering. Thermal triggering. dV / dt triggering. Forward voltage triggering. Gate triggering. Thermal triggering. ANSWER DOWNLOAD EXAMIANS APP
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