Power Electronics 4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is 0.75. 0.25. 0.2. 0.7. 0.75. 0.25. 0.2. 0.7. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.009 A. 0.004 A. 0.002 A. 0.01 A. 0.009 A. 0.004 A. 0.002 A. 0.01 A. 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 ? Voltage clamping device. Snubber circuit. CB. Fast acting current limiting device (FACL fuse). Voltage clamping device. Snubber circuit. CB. Fast acting current limiting device (FACL fuse). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is ___________ switch An c. None of these A d.c. A mechanical An c. None of these A d.c. A mechanical ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of the following is used in heat sink? Carbon. Aluminium. Silver. Iron. Carbon. Aluminium. Silver. Iron. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The maximum di/dt in a SCR is Directly proportional to supply voltage. Directly proportional to inductance in the circuit. Inversely proportional to supply voltage. Both A and B. Directly proportional to supply voltage. Directly proportional to inductance in the circuit. Inversely proportional to supply voltage. Both A and B. ANSWER DOWNLOAD EXAMIANS APP
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