What is the purpose of a K-Factor rated transformer?

A K-Factor rated transformer is specifically designed to handle non-linear loading conditions that generate harmonics, which are prevalent in various modern electrical equipment, such as computers, variable frequency drives, and other electronic devices. The primary purpose of the K-Factor is to prevent overheating of the transformer due to these harmonic currents.

Harmonics can create additional heating in the windings and core of a transformer, leading to premature failure if not adequately managed. K-Factor rated transformers are constructed to tolerate and dissipate the heat generated by these harmonics effectively, ensuring a range of loads can be accommodated without compromising the integrity and lifespan of the transformer.

This characteristic distinguishes K-Factor rated transformers from standard transformers. While K-Factor transformers can also contribute indirectly to improved overall power quality and efficiency, their main function is focused on handling harmonic loads and mitigating the associated overheating issues.