Power Electronics Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be 100 A. 150 A. 110 A. 120 A. 100 A. 150 A. 110 A. 120 A. 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 inductance is removed. Not turn on. Turn on. Turn on if pulse frequency us increased to two times. Turn on if inductance is removed. Not turn on. Turn on. Turn on if pulse frequency us increased to two times. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics In forward blocking mode of a thyristor Junction J1 and J2 is in forward bias and J3 is in reverse bias. Junction J1, J3 is in reverse bias and J2 is in forward bias. junction J3 is in forward bias and J1, J2 is in reverse bias. junction J2 is in reverse bias and J1, J3 is in forward bias. Junction J1 and J2 is in forward bias and J3 is in reverse bias. Junction J1, J3 is in reverse bias and J2 is in forward bias. junction J3 is in forward bias and J1, J2 is in reverse bias. junction J2 is in reverse bias and J1, J3 is in forward bias. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The typical time of rising time lies between 10 - 20 µs. 1 - 4 µs. 90 - 100 µs. 40 - 60 µs. 10 - 20 µs. 1 - 4 µs. 90 - 100 µs. 40 - 60 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The device that exhibits negative resistance region is ___________. Transistor Triac Diac UJT Transistor Triac Diac UJT 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 ? CB. Fast acting current limiting device (FACL fuse). Voltage clamping device. Snubber circuit. CB. Fast acting current limiting device (FACL fuse). Voltage clamping device. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
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