what is single phase and three phase transformer?

A single-phase transformer operates on a single alternating current (AC) supply, typically used for low-power applications, such as residential power distribution. It has two windings: primary and secondary, which transfer energy through electromagnetic induction. In contrast, a three-phase transformer uses three sets of windings to handle three-phase AC supply, making it more efficient for high-power applications, such as industrial systems. It provides a more balanced load and improved voltage regulation.