TY JOUR TI Energy Consumption Quality Indicators in Collector and Asynchronous Traction Drives of AC Electric Locomotives KW Freight alternating current electric locomotive KW collector traction drive KW asynchronous traction drive KW experimental study of the quality of electrical energy consumption JO Proceedings of Petersburg Transport University AU Zarif'yan, A.A. AU Evstaf'ev, A.M. PY 2023 IS 20 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"