The role of TRANSFORMADORES DE VOLTAJE is to switch voltage from one value to another; 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://trentonzqhx36936.wikibriefing.com/3113138/do_you_know_what_electrical_transformers_do