A rotating machinery comprising: - a rotor of 2n poles, n being an integer equal to or greater than 1; - 84n slots; and - three-phase stator windings; - a top coil portion being accommodated at the diametrically inner side of each of the slots; - a bottom coil portion being accommodated at the diametrically outer side of each of the slots; the top coil portion and the bottom coil portion being connected to each other to form each of the stator windings; the stator windings having 2n phase belts per one phase; each of the phase belts being configured from a first parallel winding and a second parallel winding; where an average position in the circumferential direction of all of the top coil portions and the bottom coil portions that configure each of the phase belts is the center of the phase belt and the arrangement of the first and second parallel windings on at least one of the phase belts is viewed in order from the side near to the center of the phase belt, the top and bottom coil portions (1, 2) are formed by arranging the first and second parallel windings in a predefined order from the side near to the center of the phase belt, characterized in that, the predefined order of the first and second parallel windings of the top coil portions is second, first, first, second, first, second, first, second, second, first, second, first, second, and first parallel windings while the bottom coil portions connected to the top coil portions are disposed in the order of the first, second, second, first, second, first, second, first, second, first, first, second, first, and second parallel windings, wherein optionally the arrangement of the top coil portions and the bottom coil portions is reversed, wherein the arrangement of the top coil portions or the bottom coil portions indicates a voltage unbalance rate, which indicates a degree of unbalance in voltage, of 0.07%. - a rotor of 2n poles, n being an integer equal to or greater than 1; - 84n slots; and - three-phase stator windings; - a top coil portion being accommodated at the diametrically inner side of each of the slots; - a bottom coil portion being accommodated at the diametrically outer side of each of the slots; the top coil portion and the bottom coil portion being connected to each other to form each of the stator windings; the stator windings having 2n phase belts per one phase; each of the phase belts being configured from a first parallel winding and a second parallel winding; where an average position in the circumferential direction of all of the top coil portions and the bottom coil portions that configure each of the phase belts is the center of the phase belt and the arrangement of the first and second parallel windings on at least one of the phase belts is viewed in order from the side near to the center of the phase belt, the top and bottom coil portions (1, 2) are formed by arranging the first and second parallel windings in a predefined order from the side near to the center of the phase belt, characterized in that, the predefined order of the first and second parallel windings of the top coil portions is second, first, first, second, first, second, first, second, second, first, second, first, second, and first parallel windings while the bottom coil portions connected to the top coil portions are disposed in the order of the first, second, second, first, second, first, second, first, second, first, first, second, first, and second parallel windings, wherein optionally the arrangement of the top coil portions and the bottom coil portions is reversed, wherein the arrangement of the top coil portions or the bottom coil portions indicates a voltage unbalance rate, which indicates a degree of unbalance in voltage, of 0.07%.