Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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What is the power factor of a 1/2 HP motor with 115V and 15A power supply. Draw a diagram to support the answer
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- To start the 12A 240V motor from the last problem you must reduce the starting current from the power source to 2 times the running current. To do that you have installed a starter with a starter resistor as shown below. This resistor is in the circuit until the switch shown is closed which shorts out the resistor. What size resistor must you use for the resistor (Ohms and Watts)? Starter Resistor = Starter Resistor = 22 W +o 240V 000 1200 STARTER 0.3 Ω 000 E₂ 0.750arrow_forwardPlease help with answering this question, please write clearly, thanks. If the motor is operating at full load and if its variable resistance Radj is adjusted to 250 ohms, what is the new speed of the motor?(assume no armature reaction).arrow_forwardThe power input to a 100 hp, 480 volt, 85% efficiency and 75% power factor. What is the motor's kVA rating?arrow_forward
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