New pole-changing winding for electric drive of ball mills Dauletbek Rismukhamedov, Khusniddin Shamsutdinov, Sarvar Ganiev, Khayotullo Magdiev and Shakhobiddin Khusanov E3S Web of Conf., 384 (2023) 01059 Published online: 26 April 2023 DOI: 10.1051/e3sconf/202338401059