Title Study On Power Transformer Winding Wire Size Determination Under Nonlinear Load Condition Type of Research Presentation Keywords Current harmonics, Nonlinear load, Power transformer, Total harmonic distortion, Winding size Abstract Winding loss or copper loss is a big factor in determining power transformer functionality. ... Researchers NAVID TAGHIZADEGAN KALANTARI (First Researcher)، hooman iravani (Second Researcher)، Babak keshvari (Third Researcher)، Hamid Hashemi (Fourth Researcher)