synchronous me

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
Section: Chapter Questions
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Q4: Give a sufficient reason with a brief and complete explanation illustrated by the diagram and the
equations? If it is necessary for each of the following points?
(1) In a synchronous motor, which loss varies with the load?
(2) Why is the damping winding used in a synchronous Motor, generally?
(3) When is it preferable to use a synchronous motor over an inductive?
(4) Discuss the nature of armature MMF in an alternator, bringing out its effect on field MMF at
various power factors.
Transcribed Image Text:Q4: Give a sufficient reason with a brief and complete explanation illustrated by the diagram and the equations? If it is necessary for each of the following points? (1) In a synchronous motor, which loss varies with the load? (2) Why is the damping winding used in a synchronous Motor, generally? (3) When is it preferable to use a synchronous motor over an inductive? (4) Discuss the nature of armature MMF in an alternator, bringing out its effect on field MMF at various power factors.
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