Electrical Machines Questions and Answers – Synchronous Generators
Phasor Diagram of a Cylindrical Rotor Alternator
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Phasor diagram below is best describing the
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The load angle δ is between
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The leakage reactance can be determined with lesser accuracy by using Potier triangle.
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Potier method is very accurate due to
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The flux addition is due to
(i) sinusoidal distribution of mmfs
(ii) zero relative velocity between two mmfs
(iii) spatial distribution of three phases by 120°
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The internal power factor angle Ψ is between
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The short circuit characteristic of alternator is a straight line due to
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If it is assumed that the iron part of magnetic circuit requires zero mmf, relation between Ef and If will be
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If the resultant flux will not be in phase with the resultant mmf Fr. This is due to
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From the OCC and SCC curves, what does the intercept AB represent?
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Choose the correct representation for the time phasor below.
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From the OCC and SCC curves, what does the intercept BC represent?
