All electrical engineers had been taught in university about transformer, motor, generator, and their variations such as induction motor and synchronous motor. Yet, why isn't this simple machine taught NOR even mentioned in books NOR even found on the entire internet? A simple TRUE dynamotor where the stator of a no mechanical load/source synchronous motor/generator is used simultaneously as a transformer as well. Results in possible over-unity where energy efficiency is over 100% when flux distribution between the rotor and the primary stator winding is done correctly, OR when the both winding are overexcited which caused the current to be 180 out of phase with each other. Overexcited synchronous motor has leading current. Overexcited synchronous generator has lagging current. Together they are 180 out of phase. Natural reversal of lenz's law.

So, WHY isn't this taught?