Losses in Induction Machines

Authored by: Ion Boldea

Induction Machines Handbook

Print publication date:  June  2020
Online publication date:  May  2020

Print ISBN: 9780367466121
eBook ISBN: 9781003033417
Adobe ISBN:

10.1201/9781003033417-11

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Abstract

Losses defined as the difference between input and output power of IM have many components. There is, however, a notable difference between the losses measured under direct load and the ones calculated from the separation of losses methods (in no-load and short-circuit tests). This difference is called stray load losses and they vary from 0.5% to 2.5% of full power; they occur even on motor no-load operation.

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