Power Electronics During which time maximum conduction spreading take place in the thyristor during turn ON? Spread time. Rise time. Same for every case. Delay time. Spread time. Rise time. Same for every case. Delay time. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What may happen high dV / dt? Unwanted turn ON. Breakdown of J2 junction. Anyone of these. Both A and B. Unwanted turn ON. Breakdown of J2 junction. Anyone of these. Both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.004 A. 0.009 A. 0.002 A. 0.01 A. 0.004 A. 0.009 A. 0.002 A. 0.01 A. ANSWER DOWNLOAD EXAMIANS APP
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 0.7. 0.25. 0.75. 0.2. 0.7. 0.25. 0.75. 0.2. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which statement is true for latching current ? It is related to conduction process of device. Both C and D. It is related to turn on process of the device. It is related to turn off process of the device. It is related to conduction process of device. Both C and D. It is related to turn on process of the device. It is related to turn off process of the device. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor string is made of a no. of SCR connected in series and parallel. The string have volume and current of 11 KV and 4 KA. The voltage and current rating of available SCRs are 1800 V and 1000 A. For a string efficiency of 90 % let the number of SCRs in series and parallel are a and b respectively. Then the value of a and b will be 4, 6. 5, 7. 7, 5. 6, 4. 4, 6. 5, 7. 7, 5. 6, 4. ANSWER DOWNLOAD EXAMIANS APP
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