Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 15 Oct 2017 My Price 5.00

synchronous generator

A 100-MVA, 14.4-kV 0.8-PF-lagging, Y-connected synchronous generator has a negligible armature resistance and a synchronous reactance of 1.0 per-unit. The generator is connected in parallel with a 60- Hz, 14.4-kV infinite bus that is capable of supplying or consuming any amount of real or reactive power with no change in frequency or terminal voltage.

(a) What is the synchronous reactance of the generator in ohms?

(b) What is the internal generated voltage E of this generator under rated conditions? A

(c) What is the armature current I in this machine at rated conditions? A

(d) Suppose that the generator is initially operating at rated conditions. If the internal generated voltage E is decreased by 5 percent, what will the new armature current I be?

(e) Repeat part (d) for 10, 15, 20, and 25 percent reductions in E . A

(f) Plot the magnitude of the armature current as a function of . (You may wish to use MATLAB to create this plot.)

Answers

Maurice Tutor
(5)
Status NEW Posted 15 Oct 2017 12:10 PM My Price 5.00

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