Abstract: A rotor of an electric motor includes several poles arranged circumferentially relative to the rotor, each pole having a first set proximate a rotor outer edge and a second set farther from the latter. The first and second sets are symmetrical relative to a d-axis. Each symmetrical part in the second set has two opposite ends terminating respectively with an outer flux barrier proximate the outer edge and an opposite inner flux barrier, both inner flux barriers being separated from each other by an arrangement having two radially-extending inner bridges flanking a central radially-extending flux barrier aligned along the d-axis.

Abstract: An insulation system configured for use in an electric machine includes at least one first insulation section including at least one first insulation element, the first insulation element being configured to be applied to at least a portion of a first winding type of a plurality of windings, and the first insulation element having a first insulation thickness, and at least one second insulation section including at least one second insulation element, the second insulation element being configured to be applied to at least a portion of a second winding type of the plurality of windings, and the second insulation element having a second insulation thickness greater than the first insulation thickness of the first insulation element, wherein the first insulation section is arranged adjacent the second insulation section in a circumferential direction.