Power Electronics The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant Transistor SCR None of these UJT Transistor SCR None of these UJT ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which statement is true for latching current ? It is related to turn off process of the device. Both C and D. It is related to turn on process of the device. It is related to conduction process of device. It is related to turn off process of the device. Both C and D. It is related to turn on process of the device. It is related to conduction process of device. 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? 600 V/µs. 1000 V/µs. 1200 V/µs. 800 V/µs. 600 V/µs. 1000 V/µs. 1200 V/µs. 800 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics CB used for over current protection of thyristor operates when the fault current is neither (A) nor (B). of long period. of short duration. both (A) and (B). neither (A) nor (B). of long period. of short duration. both (A) and (B). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCRs are used in series to meet low current demand. high current demand. high voltage demand. low voltage demand. low current demand. high current demand. high voltage demand. low voltage demand. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What may happen high dV / dt? Breakdown of J2 junction. Unwanted turn ON. Both A and B. Anyone of these. Breakdown of J2 junction. Unwanted turn ON. Both A and B. Anyone of these. ANSWER DOWNLOAD EXAMIANS APP
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