single-phase induction motor employed for a mechanical work at a rate of 45 HP. Its electrical power will be 33.57 kW. A)Estimate the amount of line current necessary to power the motor if the line voltage is 460 Volts assuming 100% efficiency and a power factor of 1. ( B)Now, estimate the necessary line current for this motor if its power factor drops to 0.65. Assume the efficiency and mechanical power as the same. C)What do these calculations indicate about the importance of maintaining a high-power factor value in an AC circuit?
single-phase induction motor employed for a mechanical work at a rate of 45 HP. Its electrical power will be 33.57 kW. A)Estimate the amount of line current necessary to power the motor if the line voltage is 460 Volts assuming 100% efficiency and a power factor of 1. ( B)Now, estimate the necessary line current for this motor if its power factor drops to 0.65. Assume the efficiency and mechanical power as the same. C)What do these calculations indicate about the importance of maintaining a high-power factor value in an AC circuit?
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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single-phase induction motor employed for a mechanical work at a rate of 45 HP. Its electrical power will be 33.57 kW.
A)Estimate the amount of line current necessary to power the motor if the line voltage is 460 Volts assuming 100% efficiency and a power factor of 1. (
B)Now, estimate the necessary line current for this motor if its power factor drops to 0.65. Assume the efficiency and mechanical power as the same.
C)What do these calculations indicate about the importance of maintaining a high-power factor value in an AC circuit?
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