how does a split phase transformer work?

A split-phase transformer operates by utilizing a single primary winding and two secondary windings that are 180 degrees out of phase. When an alternating current flows through the primary winding, it induces a voltage in both secondary windings. This configuration provides two separate voltages, typically 120V each, which can be used for different loads. The split-phase design is commonly used in residential power systems to supply both 120V and 240V circuits efficiently.