
Three-phase transformer
A three-phase transformer is a device used to efficiently transfer electrical power across long distances and between different voltage levels. It involves three sets of coils (primary and secondary) arranged to work together, each carrying alternating current (AC) that is offset in time by one-third of a cycle. This setup provides a steady, balanced supply of electricity with smoother power delivery and improved efficiency compared to single-phase systems. Three-phase transformers are common in industrial and power distribution settings because they handle large amounts of electricity reliably and efficiently.