Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Concept explainers

Single Phase AC Circuit
Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.
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A 50 kW load operates from a 60 Hz, 10 kV rms line with a power factor of 0.6 lagging. Determine the following: (a) The power angle of the load. (b) The reactive power of the load in VAr. Determine the following when a capacitor is placed in parallel with the load to achieve a power factor of 0.9 lagging: (c) The new power angle of the load. (d) The new value of the reactive power in VAr. (e) The reactive power of the capacitance in VAr. The reactance of the capacitor in ohm. (f) (g) The required capacitance in µF.
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Transcribed Image Text:A 50 kW load operates from a 60 Hz, 10 kV rms line with a power factor of 0.6 lagging. Determine the following: (a) The power angle of the load. (b) The reactive power of the load in VAr. Determine the following when a capacitor is placed in parallel with the load to achieve a power factor of 0.9 lagging: (c) The new power angle of the load. (d) The new value of the reactive power in VAr. (e) The reactive power of the capacitance in VAr. The reactance of the capacitor in ohm. (f) (g) The required capacitance in µF.
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