The armature phase windings of a two-phase synchronous machine are displaced by 90 electrical degrees in space.

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The armature phase windings of a two-phase synchronous machine are displaced by 90 electrical degrees in space.

a. What is the mutual inductance between these two windings?

b. Repeat the derivation leading to Eq. 5.17 and show that the synchronous inductance is simply equal to the armature phase inductance; that is, Ls = Laa0 -k- Lal, where Laa0 is the component of the armature phase inductance due to space-fundamental air-gap flux and Lal is the armature leakage inductance.

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Electric Machinery

ISBN: 978-0071230100

6th Edition

Authors: Charles Kingsley, Jr, Stephen D. Umans

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