A single- stack, 3- phase VR motor has a step angle of 20°  Find . the number of its rotor and stator poles

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter8: Basic Electric Motors
Section: Chapter Questions
Problem 28RQ: What are the advantages and disadvantages of using the following types of motors? shaded-pole...
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A single- stack, 3- phase VR motor has a step angle of 20°
 Find . the number of its rotor and stator poles? 

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