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. Fast acting current limiting device (FACL fuse). CB. Snubber circuit. Voltage clamping device. Fast acting current limiting device (FACL fuse). CB. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics CB used for over current protection of thyristor operates when the fault current is both (A) and (B). of short duration. of long period. neither (A) nor (B). both (A) and (B). of short duration. of long period. neither (A) nor (B). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Delay time is defined by the interval when all of these. anode voltage drops from 100 % to 90 % of its actual value. anode current reaches 10 % from forward leakage current. gate current increases from 90 % to 100 % of its final value. all of these. anode voltage drops from 100 % to 90 % of its actual value. anode current reaches 10 % from forward leakage current. gate current increases from 90 % to 100 % of its final value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Anode current in an SCR consists of Both electron and holes. electrons only. holes only. either electron or holes. Both electron and holes. electrons only. holes only. either electron or holes. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is not a power transistor? TRIAC. SITS. IGBTs. COOLMOS. TRIAC. SITS. IGBTs. COOLMOS. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac can pass a portion of ___________ half-cycle through the load. None of these Only negative Both positive and negative Only positive None of these Only negative Both positive and negative Only positive ANSWER DOWNLOAD EXAMIANS APP
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