TY JOUR TI INCREASING THE RELIABILITY OF FUNCTIONING OF OPERATING CONTROL CIRCUIT OF A DISTRIBUTION SUBSTATION KW reliability KW operational control circuits KW substation KW uninterruptible power supply JO Modern Technologies and Scientific and Technological Progress AU Konovalov, Y.V. AU Pidplet, D.N. AU Gusev, I.G. AU Korpan, V.Y. PY 2025 IS 2025 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»