http://i40.tinypic.com/293ufj9.jpg

Again I am making notes of my past homework assignment and am stuck on two of the questions. So can anyone help me figure out how to find PPR1 and IPR1? I have the answers, I just need to know how to find them out.

Thanks!

 

Find the total power and current in the secondary and then divide them by the turns ratio to find them in the primary.

 

After spending 20 minutes trying to figure out answers based on your information I realized you were wrong. Instead it is found this way:


PPR1 = The sum of the power in both the secondary and primary sections.
IPRL= PPR1 / voltage across primary.

Thanks for trying though.

 

For the primary current I am right (it is one way to find it).

For the primary power I got confused. In a lossless transformer the primary power equals the secondary power.