How does the tertiary winding in a three-winding transformer contribute to harmonic mitigation in a distribution substation?

A three-winding transformer has three sets of windings, usually a primary, a secondary, and a tertiary winding. The tertiary winding plays a crucial role in harmonic mitigation, especially the third harmonic, which is a common problem in power systems. The key contribution lies in the tertiary winding's ability to provide a low-impedance pat....