Analysis of drying methods of oil-oiled power transformers D.T. Yusupov, A.B. Muminov, A.B. Sa’dullayev, A.E. Norboev and O.E. Babaev E3S Web of Conf., 524 (2024) 01017 Published online: 16 May 2024 DOI: 10.1051/e3sconf/202452401017