Power Electronics CB used for over current protection of thyristor operates when the fault current is both (A) and (B). neither (A) nor (B). of short duration. of long period. both (A) and (B). neither (A) nor (B). of short duration. of long period. 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. 70. 90. 80. 60. 70. 90. 80. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics COOLMOS device can be used in application up to power range of 500 VA. 100 KVA. 1 KVA. 2 KVA. 500 VA. 100 KVA. 1 KVA. 2 KVA. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Why resistor is used in Snubber circuit ? To minimize the discharging current. To minimize the loss . To minimize the charging current. All of these. To minimize the discharging current. To minimize the loss . To minimize the charging current. All of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H. 100 µs. 300 µs. 200 µs. 150 µs. 100 µs. 300 µs. 200 µs. 150 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which one is most suitable power device for high frequency (>100 KHz) switching application? Microwave transistor. BJT. Power MOSFET. Schottky diode. Microwave transistor. BJT. Power MOSFET. Schottky diode. ANSWER DOWNLOAD EXAMIANS APP
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