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Last one for now. Another Complex Imaginary problem that I think they took a shortcut that doesn't work. Problem statement and three solutions are below. Resources I used to come up with the first two solutions. The equations are a little different but produce the same result. The equations...

Another question revolving a Complex Imaginary problem. The problem statement is: The problem I have is that they add the PU impedance of the transformer to the line (including the j) instead of just adding the two PU values together. I have solved it two other ways and got the same answer...

I am working through the Complex Imaginary exams which is a trip by itself but I ran across a formula that I wanted someone to back check if possible. Problem #53 Variation 4: A customer of a utility is asking for an additional service for a three-phase transformer. The utility says the short...

For the ones who have this version of the practice exam, I am posting to make sure it doesn't confuse you for the exam coming up. Using NCEES practice exam problem 529 as an example, the solution shown is incorrect. CI used the magnitudes and angles instead of just using the magnitudes...

I have been working back through the CI exams I have to make sure I follow along with all the details and also double check their answers since they seem to have quite a few errors. On problem #7, I am not sure I agree with their method on obtaining the solution. See the image below for the...