recitatin6 - Electric Energy Processing: Fundamentals and...

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1 Electric Energy Processing: Fundamentals and Applications 18-418: Recitation #6 Dr. Nermeen T. Mahmoud ( [email protected] ) September 30,2009 Synchronous Motors, Induction Motors and Synchronous Generators
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2 Synchronous Machine [1] The speed of a synchronous machine is related to its frequency by the equation P f 120 n Where: n is the synchronous speed (r.p.m). f is the frequency (Hz) P is the number of pole.
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3 Synchronous Machine Synchronous Generator Mechanical Power Electrical Power Synchronous Motor Mechanical Power Electrical Power
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4 [2] Synchronous Generator Approximation Unity p.f Lagging p.f Leading p.f
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5 Synchronous Generator If load with unity or lagging power factor is increased, the terminal voltage will decrease when synchronous speed and excitation are constant. If load with leading power factor is increased the terminal voltage will increase when synchronous speed and excitation are constant.
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6 [2] Induction Motor Construction 1) Stator the stator of an induction motor is the same as
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This note was uploaded on 09/20/2010 for the course ECE 18418 taught by Professor Illic during the Fall '09 term at Carnegie Mellon.

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recitatin6 - Electric Energy Processing: Fundamentals and...

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