The line from Moscow to Arkhangelsk uses the alternating current, whereas the stretch to Vorkuta does not have electrification; therefore, all trains from Moscow in the direction of Vorkuta have to change the locomotive and stop in Konosha for about twenty minutes.
Trains departing from Moscow toward Vorkuta utilize alternating current along the Moscow-Arkhangelsk route but require a locomotive change and a stop in Konosha for about twenty minutes due to the lack of electrification on the Vorkuta stretch.