Erik
The transformer is used to change the voltage level.
What do you really want to do, to help you.
Ennio, thanks for answering.
What happens is that where I live the voltage is 110 and the lathe works at 230v (I still do not buy it since I want to take this part into account to proceed to buy it)
Erik
In countries that use 110V, with one phase and neutral, 220V is also used between 2 phases. With what you would save the transformer.