Kiatsookkanatorn, P., Klamrak, P., Yindeeyom, N. and Watjanatepin, N. 2022. Investigation of the Effect of Harmonic Currents on Losses of Phase Shifting Transformers and Its Realization using a 15-Degree Phase shifting Transformer. RMUTP Research Journal Sciences and Technology. 16, 2 (Dec. 2022), 113–126. DOI:https://doi.org/10.14456/jrmutp.2022.27.