The shown locus is of an induction motor. I was wondering if there is a reason why the imaginary current of a current locus of an induction machine is positive. Every equation contains a term like \$-j U_s / X_s \$ (for example if there is no load).
Normally, all current locus are printed with a negative imaginary axis. In a book I found examples with a positive imaginary current.
Is it just a different way of displaying it or does it impact how the Motor behaves?
Edit: The locus shows the stator currents to a maximum slip of around 0.3. Therefore the locus is no half or complete circle. Also: 5 different frequency-locuses are shown.