Power Electronics Thyristor can be protected from over voltages by using fuse. heat sink. snubber circuit. voltage clamping device. fuse. heat sink. snubber circuit. voltage clamping device. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics ON state voltage drop across SCR lie between the range 1.5 - 2 V. 1 - 1.5 V. 0.5 - 1 V. 0 - 0.5 V. 1.5 - 2 V. 1 - 1.5 V. 0.5 - 1 V. 0 - 0.5 V. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During which time maximum conduction spreading take place in the thyristor during turn ON? Spread time. Rise time. Delay time. Same for every case. Spread time. Rise time. Delay time. Same for every case. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The typical time of rising time lies between 10 - 20 µs. 90 - 100 µs. 40 - 60 µs. 1 - 4 µs. 10 - 20 µs. 90 - 100 µs. 40 - 60 µs. 1 - 4 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt? 800 V/µs. 1200 V/µs. 600 V/µs. 1000 V/µs. 800 V/µs. 1200 V/µs. 600 V/µs. 1000 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During reverse recovery time charge carrier of junction J1 is swept out. charge carrier of junction J2 recombined. both B and C. charge carrier of junction J3 is swept out. charge carrier of junction J1 is swept out. charge carrier of junction J2 recombined. both B and C. charge carrier of junction J3 is swept out. ANSWER DOWNLOAD EXAMIANS APP
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