Calculating I0 and hence Xm from transformer open circuit test?

  • Thread starter Thread starter student
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student

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This is essentially my circuit

http://en.wikipedia.org/wiki/Transformer#Equivalent_circuit

to calculate xm i've been given...Rm same as Rx

Xm = V1/((I0)^2-(V1/Rm)^2)^0.5

But i don't have Io.....and i need it to find Xm providing the formula is correct...how do i do it?
 
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