Distribution Transformer Suppliers Near Me Power transformers are essential components in electrical power systems. They play a crucial role in transforming voltage levels to suit the specific needs of various applications. By efficiently stepping up or stepping down voltage, these transformers enable the transmission and distribution of electrical energy over long distances and to diverse end-users. How Power Transformers Work: Power transformers operate on the principle of electromagnetic induction. They consist of two or more windings, typically wrapped around a laminated iron core. When an alternating current (AC) flows through one winding (the primary winding), it creates a magnetic field. This magnetic field induces a voltage in the other winding (the secondary winding), proportional to the ratio of the number of turns in each winding.