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Question with 3 Phase Transformers Wye-Delta problem

  • #1
169
1

Homework Statement


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Homework Equations


Wye:
V_Line = sqrt(3) x V_Phase

Delta:
V_Line = V_Phase

The Attempt at a Solution


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My answer doesn't quite match up with the solutions in the book, and was wondering what I went wrong here? Any help is greatly appreciated!
 

Answers and Replies

  • #2
Tom.G
Science Advisor
3,054
1,805
For part a) I get approx. the book answer if the secondary load is 3 phase 4 wire, same configuration as the primary.
You might find it more straightforward to work directly with resistances, rather than with current then calculating resistances.

As the textbooks like to say: "Part b) is left as an exercise for the reader."
 
  • #3
169
1
For part a) I get approx. the book answer if the secondary load is 3 phase 4 wire, same configuration as the primary.
You might find it more straightforward to work directly with resistances, rather than with current then calculating resistances.

As the textbooks like to say: "Part b) is left as an exercise for the reader."
Yes I've solved it, turned out part b's solution of the book is incorrect according to my professor. Thanks!
 

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