This model works well for most circuits, but a problem occurs if you reverse the direction of the ideal transformer and try to connect a voltage source to the secondary .

Nikola Tesla - A New System of Alternate Current Motors and Transformers, ... A motor with one of its circuits in series with a transformer and the other in the secondary of the transformer. 2.

The apparatus includes a switching circuit and an even number of transformers. The transformers have identical cores, primary windings, and secondary windings. The primary windings of the transformers ...