https://i44.tinypic.com/142zgg5.jpg
they say that we can measure aM and R_c
they say that in a good transformer the power waisted on R_1
is much smaller then on R_c
then we can neglect the power on R_c
so the power measured on the power meter will be the power on R_c
https://i39.tinypic.com/20zpcvm.jpg
why
aM=L_c
?
if we measure the voltage threw those to points
we need to know the current to get z_eq
and i dont have short circuit citiation here
they say that we can measure aM and R_c
they say that in a good transformer the power waisted on R_1
is much smaller then on R_c
then we can neglect the power on R_c
so the power measured on the power meter will be the power on R_c
https://i39.tinypic.com/20zpcvm.jpg
why
aM=L_c
?
if we measure the voltage threw those to points
we need to know the current to get z_eq
and i dont have short circuit citiation here