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 83.3 %. 90.9 %. 76.3 %. 91.6 %. 83.3 %. 90.9 %. 76.3 %. 91.6 %. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which statement is true for latching current ? It is related to turn off process of the device. It is related to turn on process of the device. It is related to conduction process of device. Both C and D. It is related to turn off process of the device. It is related to turn on process of the device. It is related to conduction process of device. Both C and D. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Materials used in heat sink should have high melting point. high thermal conductivity. All of these. large surface area. high melting point. high thermal conductivity. All of these. large surface area. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be 120 A. 150 A. 100 A. 110 A. 120 A. 150 A. 100 A. 110 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which triggering is the most reliable? Thermal triggering. dV / dt triggering. Forward voltage triggering. Gate triggering. Thermal triggering. dV / dt triggering. Forward voltage triggering. Gate triggering. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is 30° to 180°. 60° to 120°. 30° to 150°. 60° to 180°. 30° to 180°. 60° to 120°. 30° to 150°. 60° to 180°. ANSWER DOWNLOAD EXAMIANS APP
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