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Primary voltage and transformers

  • Thread starter zebra1707
  • Start date
  • #1
107
0
Hi physics gurus

Homework Statement



What should the primary voltage be changed to in order to produce a secondary current of 10 A, given that the V / I ratios for the coils do not change?

Current ratios that I have calculated so far are as follows:

Np (200) Vp (1200) Is (15)
Ns (40) = Vs (240) = Ip (3)

Homework Equations



If focusing on just the IpVp = IsVs ratio - then the solution would be...

The Attempt at a Solution



The primary voltage would be changed to 800 V according to my calculation, I would appreciated your advice.

Cheers P
 

Answers and Replies

  • #2
245
0


Yes, you are correct
 
  • #3
107
0


Many thanks

Cheers P
 

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