In a separately excited generator supplying rated load the armature reaction.is always presentis always absentO none of thesemay be sometimes present

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Answered: In a separately excited generator…

In a separately excited generator supplying rated load the armature reaction. O is always present O is always absent none of these O may be sometimes present

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter57: Dc Variable-speed Control-motor Drives

Section: Chapter Questions

Problem 8SQ

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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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In a separately excited generator supplying rated load the armature reaction.
is always present
is always absent
O none of these
may be sometimes present

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