Abstract: A stator for a rotating electrical machine includes a stator core, a stator winding disposed on or in the stator core, and an annular resinous seal which covers an axial end portion of a coil end of the stator winding. The resinous seal has an inner circumferential surface which is shaped to have a first inner diameter close to the stator core and a second inner diameter farther away from the stator core. The first inner diameter is selected to be smaller than the second inner diameter. This ensures the stability of electrical insulation of the stator winding.

Abstract: In a stator for a rotating electrical machine, a stator core, and a stator winding are provided. The stator winding is located in or around the stator core and has a coil end exposed outside a corresponding end of the stator core. A neutral busbar is connected to the coil end of the stator winding, and a temperature sensor is mounted to the neutral busbar. A resinous seal includes an insulating resin, and the insulating resin of the resinous seal is arranged to cover an axial end portion of the coil end and the neutral busbar. The resinous seal is configured to have bubbles formed in the insulating resin. The bubbles are located around the neutral busbar.

Abstract: An insulation sleeve assembling apparatus that assembles a tubular insulation sleeve to a lead wire that is formed of a plurality of conductors includes an actuator unit that rotates the insulation sleeve while actuating the lead wire and the insulation sleeve in a direction in which the lead wire and the insulation sleeve approach each other.

Abstract: An insulation sleeve assembling apparatus that assembles a tubular insulation sleeve to a lead wire that is formed of a plurality of conductors includes an actuator unit that rotates the insulation sleeve while actuating the lead wire and the insulation sleeve in a direction in which the lead wire and the insulation sleeve approach each other.