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 150°. 60° to 120°. 30° to 180°. 60° to 180°. 30° to 150°. 60° to 120°. 30° to 180°. 60° to 180°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Thyristor can be protected from over voltages by using heat sink. fuse. snubber circuit. voltage clamping device. heat sink. fuse. snubber circuit. voltage clamping device. 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 90. 80. 60. 70. 90. 80. 60. 70. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Switching frequency of SITH is 10 KHz. 60 KHz. 100 KHz. 5 KHz. 10 KHz. 60 KHz. 100 KHz. 5 KHz. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics IGBT combines the advantages of SITs and MOSFETs. BJTs and MOSFETs. BJTs and SITs. None of these. SITs and MOSFETs. BJTs and MOSFETs. BJTs and SITs. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What happen due to high di / dt? Local hot spot. Insulation failure. None of these. Breakdown of junction. Local hot spot. Insulation failure. None of these. Breakdown of junction. ANSWER DOWNLOAD EXAMIANS APP
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