Answered: The power input to a 100 hp, 480 volt,…

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Electrical Engineering

The power input to a 100 hp, 480 volt, 85% efficiency and 75% power factor. What is the motor's kVA rating?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter9: Components For Electric Motors

Section: Chapter Questions

Problem 31RQ

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Concept explainers

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

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The power input to a 100 hp, 480 volt, 85% efficiency and 75% power factor. What is the motor's kVA rating?

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Winding and Construction of the Rotor and Stator

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