3. A single-phase full bridge fully controlled thyristor rectifier ( a = 45°) is supplied by grid (supply) voltage of V, 220 V (rms value). Assume that the load is represented by a constant dc (flat) current, Ia = 10 A. The grid frequency is equal to 50 Hz. a. Sketch the output dc voltage valt). Derive the equation for the average de voltage. b. Obtain average and rms value of a thyristor current, and PRV Peak Reverse Voltage of it. c. Calculate input active power, apparent power and powwer factor.

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3. A single-phase full bridge fully controlled thyristor rectifier ( a = 45° ) is supplied by
grid (supply) voltage of V, = 220 V (rms value). Assume that the load is represented
by a constant dc (flat) current, Ia = 10 A. The grid frequency is equal to 50 Hz.
a. Sketch the output de voltage va(t). Derive the equation for the average de
voltage.
b. Obtain average and rms value of a thyristor current, and PRV Peak Reverse
Voltage of it.
c. Calculate input active power, apparent power and power factor.
Transcribed Image Text:3. A single-phase full bridge fully controlled thyristor rectifier ( a = 45° ) is supplied by grid (supply) voltage of V, = 220 V (rms value). Assume that the load is represented by a constant dc (flat) current, Ia = 10 A. The grid frequency is equal to 50 Hz. a. Sketch the output de voltage va(t). Derive the equation for the average de voltage. b. Obtain average and rms value of a thyristor current, and PRV Peak Reverse Voltage of it. c. Calculate input active power, apparent power and power factor.
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