Mishra, Vivek, and Satyam Prakash. “Detection of Internal Faults in Transformers By Negative Sequence Current”. SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 4, no. 02 (December 25, 2013): 61-66. Accessed January 29, 2026. https://smsjournals.com/index.php/SAMRIDDHI/article/view/1254.