The ratio between impedances of a transformer´s windings is given by the next formula:
Formula 1
Z1 / Z2 = n12 / n22
Where:
Z1 is the impedance of the primary winding in ohm (Ω)
Z2 is the impedance of the secondary winding in ohm (Ω)
n1 is the number of turns of the primary winding
n2 is the number of turns of the secondary winding
