Table Q1 depicts the average measurement results for an industrial electric pump with variable speed control. (1) Distinguish the percentage different between the fundamental active power (Plund) and the average active power (Pag). (ii) Determine the percentage of total harmonic distortion (%THD) for voltage and current. (iii) Formulate the relationship between %THD and total RMS voltage (Vms) and total RMS current (ms). (iv) Compare the true power factor (PFrue) and the displacement power factor (PF disp). (v) Recommend a viable method to suppress the harmonics.
Table Q1 depicts the average measurement results for an industrial electric pump with variable speed control. (1) Distinguish the percentage different between the fundamental active power (Plund) and the average active power (Pag). (ii) Determine the percentage of total harmonic distortion (%THD) for voltage and current. (iii) Formulate the relationship between %THD and total RMS voltage (Vms) and total RMS current (ms). (iv) Compare the true power factor (PFrue) and the displacement power factor (PF disp). (v) Recommend a viable method to suppress the harmonics.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
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Question
![Q1. Table Q1 depicts the average measurement results for an industrial electric
pump with variable speed control.
(1) Distinguish the percentage different between the fundamental active power
(Pfund) and the average active power (Pavg)-
(ii) Determine the percentage of total harmonic distortion (%THD) for voltage
and current.
(iii) Formulate the relationship between %THD and total RMS voltage (Vms)
and total RMS current (Irms).
(iv) Compare the true power factor (PFtrue) and the displacement power factor
(PF disp).
(v) Recommend a viable method to suppress the harmonics.
Frequency (Hz)
50
250
350
550
650
Table Q1
Voltage (V)
412/0°
85/10⁰
31/25°
12/6°
7/15°
Current (A)
29-27°
5.8/-10°
3.2/80°
1.34-50°
0.032-30°](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffc6a6333-8e60-4818-a40a-30cea7b1cf7b%2Fee42f87d-314c-42f0-8f1c-58a089175c3c%2Fcqvppj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1. Table Q1 depicts the average measurement results for an industrial electric
pump with variable speed control.
(1) Distinguish the percentage different between the fundamental active power
(Pfund) and the average active power (Pavg)-
(ii) Determine the percentage of total harmonic distortion (%THD) for voltage
and current.
(iii) Formulate the relationship between %THD and total RMS voltage (Vms)
and total RMS current (Irms).
(iv) Compare the true power factor (PFtrue) and the displacement power factor
(PF disp).
(v) Recommend a viable method to suppress the harmonics.
Frequency (Hz)
50
250
350
550
650
Table Q1
Voltage (V)
412/0°
85/10⁰
31/25°
12/6°
7/15°
Current (A)
29-27°
5.8/-10°
3.2/80°
1.34-50°
0.032-30°
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