The single-phase AC voltage controller of Figure 2.1 has a 120 Vms source and a load resistance of 15 N. The relation between the normalized rms load voltage and the delay angle for a single-phase AC...

do a question (ii)(iii) only

Extracted text: The single-phase AC voltage controller of Figure 2.1 has a 120 Vms source and a load resistance of 15 N. The relation between the normalized rms load voltage and the delay angle for a single-phase AC controller with a resistive load is provided in Figure 2.2. (i) Evaluate the power factor and the delay angle required to deliver 775 W power to the load. (ii) Determine the rms and average currents in the thyristors (S, and S2).. (iii) If resistive load is changed to RL load, discuss what will happen to the output voltage and output current.


Extracted text: 本 Figure 2.1 Single-phase Voltage Controller 1.0 0.8 0.6 04 0.2 0.0 40 80 120 160 Delay Angle (Degrees) Figure 2.2 Normalized rms Output Voltage ww