The role of TRANSFORMADORES DE VOLTAJE is always to switch voltage from value to a different; normally from higher to lower voltage or vice versa. They incorporate two teams of coils or windings which are connected to a ferromagnetic core. There are two types of coils—the primary and secondary conductors. https://johnnyvlcs14815.bmswiki.com/4973323/do_you_know_what_electrical_transformers_do