A 1-hp 120-V-rms 1740-rpm 60-Hz capacitor-start

Chapter 17, Problem P17.49

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A 1-hp 120-V-rms 1740-rpm 60-Hz capacitor-start induction-run motor draws a current of 10.2 A rms at full load and has an efficiency of 80 percent. Find the values of a. the power factor and b. the impedance of the motor at full load. c. Determine the number of poles that the motor has.

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