Q3// The load in Fig. I consists of a resistance and a very large inductance. The inductance is so large that the output current io can be assumed to be continuous and ripple-free. The load is supplied from an ideal three- phase half-wave-controlled rectifier. (a) Sketch a set of waveforms, for thyristor firing angle a -45°, showing: supply voltages (VAN. V BN.VCN).Load voltage vo, and load current i (b) Derive an expression for the average value V. of the load voltage. (c) Determine the average value of the output voltage and current if the phase voltage is Vmax=450 V and R= 100 ohms when a=0°, a=60°, and a=120°. (d) How is the average load voltage affected if thyristor $2 failed to open circuit?

Q3// The load in Fig. I consists of a resistance and a very large inductance. The inductance is so large that the output current io can be assumed to be continuous and ripple-free. The load is supplied from an ideal three- phase half-wave-controlled rectifier. (a) Sketch a set of waveforms, for thyristor firing angle a -45°, showing: supply voltages (VAN. V BN.VCN).Load voltage vo, and load current i (b) Derive an expression for the average value V. of the load voltage. (c) Determine the average value of the output voltage and current if the phase voltage is Vmax=450 V and R= 100 ohms when a=0°, a=60°, and a=120°. (d) How is the average load voltage affected if thyristor $2 failed to open circuit?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.2P: The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where...

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