Power Electronics How can we protect SCR from thermal conditions ? Use of snubber circuit. Using CB and fuse. Using heat sink. Using equalizing circuit. Use of snubber circuit. Using CB and fuse. Using heat sink. Using equalizing circuit. 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 %. 90.9 %. 83.3 %. 91.6 %. 76.3 %. 90.9 %. 83.3 %. 91.6 %. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A 200 A thyristor is to be operated in parallel with a 300 A thyristor. The ON state voltage drops are 1.5 V and 1.2 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 500 A and each of them is fully loaded ? 0.03 ohm 3.0 ohm 0.3 ohm 0.3 ohm 0.03 ohm 3.0 ohm 0.3 ohm 0.3 ohm ANSWER DOWNLOAD EXAMIANS APP
Power Electronics BCT is used for Low power current control. Low power phase control. High power phase control. High power current control. Low power current control. Low power phase control. High power phase control. High power current control. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________ Is decreased Remains the same Is increased None of these Is decreased Remains the same Is increased None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum power loss occurs during spread time. all. rise time. delay time. spread time. all. rise time. delay time. ANSWER DOWNLOAD EXAMIANS APP
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