NCEES Practice Exam, Q122

[MadamPirate PE]

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!

 

[LyceeFruit PE]

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)

 

[DLD PE]

I agree this is a very confusing problem.  I read through this and it helped:

http://engineerboards.com/topic/30201-ncees-version-2018-122/

 

[leo2car]

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)