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The single-phase AC voltage controller of Figure 2.1 has a 120 Vms source and a load resistance of 15 . 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.

The single-phase AC voltage controller of Figure 2.1 has a 120 Vms source and a load resistance of 15 . 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.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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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.
Transcribed Image 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.
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
Transcribed Image 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
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