Electric rotating machine

摘要

An electric rotating machine having a rotor, rotatably disposed in an inner radius side of a stator through a gap, including rotor windings contained in a plurality of slots formed in a rotor core, a slot insulation placed between the rotor winding and the slot, an insulation block placed between a wedge arranged at a peripheral side of the rotor core outward of the rotor winding of the slot and a retaining insulation placed between a retainer for fixing the rotor winding in both sides in a shaft direction of the rotor core and the rotor winding. At least one of the slot insulation, the insulation block and the retaining insulation is an insulation formed by filling or mixing granular and/or short-fiber insulating materials having a thermal conductivity higher than 5 W/m.K in a resin and a thermal conductivity in a thickness direction higher than 0.35 W/m.K.