In: Electrical Engineering
4. Explain and show formulaically that rotating
magnetic field occurs when applying ia=Iscoswst and ib=Isinwst with
phase A and phase B windings to 90° spatially on the stator of the
induction machine or synchronous machine.
(writer: Sorry. The original is not english, so I uploaded it using Google Translate. Please let me know if there is a mistake in the translation.)