Hamad Power Electronics 08/09/2021 A. Breakdown of junction B. Local hot spot C. Insulation failure D. None of these Related Mcqs: 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 _____?A. 30° to 150°. B. 30° to 180°. C. 60° to 120°. D. 60° to 180°.... How can we protect SCR from thermal conditions _____________?A. Use of snubber circuit. B. Using heat sink. C. Using CB and fuse. D. Using equalizing circuit... 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______________________?A. 76.3 % B. 91.6 % C. 83.3 % D. 90.9 %... The effects of EMI can be reduced by____________?A. Suppressing emissions B. Reducing the efficiency of the coupling path C. Reducing the susceptibility of the receptor D. All of these... The input current waveform of a bridge controlled rectifier when the load is perfectly filtered is___________?A. Sine wave B. Square wave C. Saw – tooth wave D. Trapezoidal wave...
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