short circuit test - given values

[Phatso86]

This book has so many errors, but I am not sure if this is one of them. Isn't the given current on a short circuit test the rated current?

Here the rated current is 9.1 but the I_sc is 10.5

I ended up with the wrong power loss because I got a different value from 360W by using 9.1A current in my calcs

 

[Phatso86]

I should mention that one of the losses in the solution was 360W, the short circuit test loss

if this is the right approach, where does the loss of (I_rated^2)*R come into play? I_rated was the actual current in the problem