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 SCR None of these UJT Transistor SCR None of these UJT Transistor ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What happen due to high di / dt? Insulation failure. Local hot spot. None of these. Breakdown of junction. Insulation failure. Local hot spot. None of these. Breakdown of junction. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is 76.3 %. 83.3 %. 90.9 %. 91.6 %. 76.3 %. 83.3 %. 90.9 %. 91.6 %. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n 60. 90. 80. 70. 60. 90. 80. 70. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is not a power transistor? SITS. COOLMOS. TRIAC. IGBTs. SITS. COOLMOS. TRIAC. IGBTs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics For series connected SCR’s dynamic equalising circuit consists of series R and diode with C across R. R and C in series but with diode across C. R and C in series but with diode across R. series R and diode with C across R. series R and diode with C across R. R and C in series but with diode across C. R and C in series but with diode across R. series R and diode with C across R. ANSWER DOWNLOAD EXAMIANS APP
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