A class ChS2T electric locomotive is a huge machine. They were a design by Škoda Works of
Czechoslovakia, built 1971-99. The type is used by the Russian and Ukrainian state railways and the very similar ChS4 type
also by the Belarus state railways. ChS2 is the DC current version
and the same locomotive for AC power is ChS4. The basic design of the locomotive is already from the 1950s but the version
in this picture was produced in Plzen at the V.I.Lenin plant of Škoda since 1971.
Picture from the Ladoga station in St. Petersburg 30.5.2017 by Markku Salo.