U 2 U 1 = N 2 N 1 {\displaystyle {U_{2} \over U_{1}}={N_{2} \over N_{1}}}
U 2 U 1 = I 1 I 2 {\displaystyle {U_{2} \over U_{1}}={I_{1} \over I_{2}}}
I 2 I 1 = N 1 N 2 {\displaystyle {I_{2} \over I_{1}}={N_{1} \over N_{2}}}
Z 1 = U 1 I 1 {\displaystyle Z_{1}={U_{1} \over I_{1}}}
Z 2 = U 2 I 2 = U 1 ∗ N 2 N 1 I 2 = U 1 ∗ N 2 N 1 I 1 ∗ N 1 N 2 = U 1 I 1 ∗ ( N 2 N 1 ) 2 {\displaystyle Z_{2}={U_{2} \over I_{2}}={U_{1}*{N_{2} \over N_{1}} \over I_{2}}={{U_{1}*{N_{2} \over N_{1}}} \over {I_{1}*{N_{1} \over N_{2}}}}={U_{1} \over I_{1}}*{\left({\frac {N_{2}}{N_{1}}}\right)^{2}}}
