TY CONF TI IMPACT OF TRACTION SUBSTATION VOLTAGES ON THE SUBWAY ENERGY SUPPLY SYSTEM KW energy supply KW traction circuit KW energy efficiency KW subway KW numeric modeling JO CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019 AU Yaroslavcev, M.V. AU Efimova, O.A. PY 2024 PB Bryansk State Technical University