NCEES Practice Exam, Q122 - Power Exam Sub Forum - Engineer Boards
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MadamPirate

NCEES Practice Exam, Q122

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Hi there,

 

Is there anyone who can point me in the direction of how to solve this question? I looked at the solution and it makes zero sense to me. Or if someone could step me through it, that would be great.

 

Thanks!

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Is 122 asking:

 

A power plant uses a turbine driven sync gen rated 3ph, 150MVA," blah blah blah?

I wanted to make sure I have the same Q122 as you (I have an older version of NCEES)

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The Apparent Power is the Rated power of the generator. You know the power factor. The real power at rated conditions is

 

P = S * pf so P=150*.85 = 127.5 MW. 

Then round 127.5 MW to 128 MW. (C)

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