Some aspects of comparing the operational properties of synchronous machines with a conventional and two mutually shifted excitation windingsN. B. Pirmatov, A. M. Egamov, C. M. Giyasov, N. A. Mamarasulov, U. N. Berdiyorov, Sh. O. Ergashov and J. A. NizamovE3S Web of Conf., 401 (2023) 03056DOI: https://doi.org/10.1051/e3sconf/202340103056