Key directions of development of measures to improve the reliability of electrical power systemsR.B. Jalilov, S.T. Latipov, G.N. Aslanova, A.A. Akhmedov and S.P. ShayimovaE3S Web Conf., 139 (2019) 01001DOI: https://doi.org/10.1051/e3sconf/201913901001