Rotary electric machine

A rotary electric machine, comprising:

• an armature core having a plurality of magnetic pole teeth provided at intervals apart in a circumference direction, slots being formed between the magnetic pole teeth;
• an armature coil group having a plurality of armature coils each including a pair of coil sides arranged in the slots, which are different from one another, and coil ends connecting the pair of coil sides, the armature coils being wound on the magnetic pole teeth in an overlap winding configuration, and a three-phase current flowing in the armature coils;
• and
• a rotor having a plurality of magnetic poles aligned in the circumference direction, the rotor being rotated with respect to the armature core and the armature coil group,
• wherein the armature coil group has, as the armature coils, a plurality of base coils, of which one coil side is arranged in an upper opening of the slot and the other coil side is arranged in a lower opening of the slot, upper layer coils, of which both one coil side and the other coil side are arranged in an upper opening of the slot, and lower layer coils, of which both one coil side and the other coil side are arranged in the lower opening of the slot.