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 91.6 %. 90.9 %. 76.3 %. 83.3 %. 91.6 %. 90.9 %. 76.3 %. 83.3 %. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Snubber circuit. CB and fuse. Voltage clamping device. Heat sink. Snubber circuit. CB and fuse. Voltage clamping device. Heat sink. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During gate recovery time charge carrier of J1 junction removed. charge carriers of J2 junction is swept out. charge carriers of J2 junction recombined. charge carriers of J3 junction is removed. charge carrier of J1 junction removed. charge carriers of J2 junction is swept out. charge carriers of J2 junction recombined. charge carriers of J3 junction is removed. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCR will be turned off when anode current is < latching current but greater than holding current and gate signal is present. < latching current but greater than holding current and gate signal is 0. both (A) and (B). less than holding current. < latching current but greater than holding current and gate signal is present. < latching current but greater than holding current and gate signal is 0. both (A) and (B). less than holding current. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics By which one of the following we can measure the reliability of a string? Factor of safety. Derating factor. Reliability factor. String efficient. Factor of safety. Derating factor. Reliability factor. String efficient. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During reverse recovery time both B and C. charge carrier of junction J1 is swept out. charge carrier of junction J3 is swept out. charge carrier of junction J2 recombined. both B and C. charge carrier of junction J1 is swept out. charge carrier of junction J3 is swept out. charge carrier of junction J2 recombined. ANSWER DOWNLOAD EXAMIANS APP
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