Zigzag transformers consist of two windings that are how many degrees out of phase?

Zigzag transformers are designed with two windings that are connected in such a way that they create a 120-degree phase shift between them. This unique configuration allows for effective neutral grounding and helps in balancing unbalanced loads in electrical systems. The 120-degree phase difference is a critical characteristic because it enables the transformer to provide phase shift that aids in the mitigation of harmonic distortion and can improve overall system stability. This design is particularly beneficial in power distribution systems that require grounding and voltage stabilization, making the 120-degree phase difference a key aspect of zigzag transformer functionality.