%0 Journal Article %T Experimental Research of Energetic Efficiency of Electric Locomotive Asynchronous Traction Drive at Changing Load %A Zarif'yan, A.A. %A Kolpahch'yan, P.G. %K Electric locomotive, asynchronous traction gear, energetic efficiency at changing load, energetic efficiency indicator experimental and calculated definition %J Bulletin of scientific research results %D 2023 %N 2023 %P 15 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"