TY JOUR TI TECHNOLOGICAL MODERNIZATION OF ELECTRICAL EQUIPMENT FOR OIL AND GAS PRODUCTION AND TRANSPORTATION KW experimental confirmation KW technological modernization KW implementation KW variable frequency drives KW energy consumption optimization KW reliability improvement JO Scientific Papers Collection of the Angarsk State Technical University AU Konovalov, Y.V. AU Zaycev, D.A. PY 2025 IS 2025 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»