FIELD: transport engineering; electric vehicles. SUBSTANCE: upper unit of current collector has pan, movable frame, side trolleys and additional trolley secured on frame and arranged at equal distance from side trolleys. Rigidity of additional trolley is equal to or higher than rigidity of each side trolley. EFFECT: reduced nonuniformity of wear of contact wire, reduced mass of current collector, increased stability of pressure of contact elements. 2 cl, 2 dwg
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