Patent ID: 7649294

Claim:
A rotary electric machine comprising: a rotor supported in a frame of the machine to be rotatable about an axis; and a stator disposed in the frame and opposing the rotor, the stator comprising: a stator core; a stator winding installed in the stator core and composed of a plurality of conductor segments each with a length, each of the conductor segments having first and second ends in a direction of the length thereof, at least one of the first and second ends of each of the conductor segments being at least partially joined to at least one of the first and second ends of a corresponding another one of the conductor segments to provide the stator winding including a plurality of joint portions of the plurality of conductor segments; and an insulating film covering each of the conductor segments except for at least the joint portions of the stator winding, at least part of the insulating film of each of the conductor segments being located close to a corresponding one of the joint portions, the at least part of the insulating film containing an evaporatable component, an amount in ppm of the evaporatable component contained in the at least part of the insulating film being adjusted to be equal to or lower than 20000 ppm.