Md Sani, F. N. ., & Burhannuddin, D. H. . (2021). 15 kVA, 11kV/400V Transformer Winding Fault Detection using Sweep Frequency Response Analysis (SFRA). Evolution in Electrical and Electronic Engineering, 2(2), 547-560. https://penerbit.uthm.edu.my/periodicals/index.php/eeee/article/view/4578