rg1
Well-known member
Is question 12-9 on page 261 of Wildi has wrong answer wrt angle of line voltage V12
Q 12-9 Wildi
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rg1
Well-known member
Answer to E12 is 347 leading E23 by 150 degrees.
E31is 347 lagging E12 by 60 degrees. I have similar issues in questions 12-13, 12-14 and 12-15. Once we are done with this we will discuss others.
rg1
Well-known member
Thanks a lot. I am in agreement with you. It seems I have some wrong solution for it.
Anyways. Do you have another questions with you- 12-13; 12-14; 12-15. They are all one question based on Delta connected auto transformer ( 3 single phase xmers).
rg1
Well-known member
rg1
Well-known member
You can interchange the positions of H1 with H2 and X1 with X2 if you feel like. That should not make a difference in the answer.
rg1
Well-known member
The magnitudes are right, that is for sure, angles I am not yet sure. But I am in agreement with you for both. In the given solutions even Vxy is given 465 and Ia as 121. I am sure that must be wrong.
rg1
Well-known member
You guys are very skilled with your thoughts and your overall problem solving abilities. I hope one day I can attain your skill level. It is a tough process picking this stuff up though! I am finally done reading through transformers and am starting three phase induction machines. I wish everyone the best of luck.
rg1
Well-known member
Thanks @GaryD . Practice makes it. I am sure you will do it. My best wishes. I am making my efforts to test the waters. I really do not know how the real exam, will be. No, one can claim to be a master of this large subject. If I can be of any help, in your process of learning, I will consider myself fortunate.
