The stator is used for realization of drives and for generation electric energy in various fields of engineering. It provides reduction of basic and added electric losses in the stator winding at increased power. The stator includes a cylindrical stator pack (1) with a plurality of uniformly distributed slots (2) with an opening on the inner surface of the stator. In the slots (2) are laid double-layer winding composed of one or more than one double-arm sections (4) of wires having a rectangular cross-section, comprising an arm (5) adjacent to opening and an arm (6) to bottom of the slot (2), laid in two slots (2) distant from each other in step Y. The slot (2) is rectangular in one or two stages. The size (b1) in the radial direction of the cross-section of the wire, building at least one elementary double-arm section of the arm (5) near to an opening is at most equal to the size (b) in a radial direction of other wires in the slot (2).