A rotor assembly of a generator includes a rotor core including a plurality of core poles defining a plurality of core slots therebetween. The core poles extend from a first axial end of the rotor core to a second axial end of the rotor core. A rotor winding is installed to the rotor core and has a plurality of core segments located in the plurality of core slots, and a plurality of end turns connecting the plurality of core segments. An end plate is located at at least one of the first axial end or the second axial end and includes a plate portion and a plurality of wedge ends extending from the plate portion. Each wedge end is located at a corresponding core slot. The end plate is supportive of the plurality of end turns of the rotor winding.