Abstract: A rotating electrical machine includes a plurality of coil conductors, and an insulating tape. The insulating tape is wound around the coil conductors a plurality of times to form an insulating layer. The insulating layer corresponds to at least a part of the coil conductors protruded from the core is provided so that a part of the wound insulating tape is adhered.

Abstract: The rotating electrical machine of the present invention includes a stator coil obtained by curing the impregnating resin injected into the whole stator coil unit after an electrically insulated coil unit with a mica tape having been wrapped around a conductor is slotted into stator iron core slots via a slot liner. The high-heat-resistance resin component of the slot liner contains at least an epoxy resin having 3 or more epoxy groups. The high-heat-resistance resin component of the mica tape contains at least an alicyclic epoxy resin. The impregnating resin contains a bifunctional epoxy resin, and an acid curing agent having one acid anhydride skeleton. With the impregnating resin, the high-heat-resistance resin components of the slot liner and the mica tape form a liner cured portion and a mica insulating layer portion as an integral unit of different resin compositions inside the slot.

Abstract: Provided is a rotating electrical machine coil in which an ununiform bulge of the rotating electrical machine coil protruded outside from the core is suppressed. A rotating electrical machine coil, provided by receiving the rotating electrical machine coil in a core of a rotating electrical machine and performing impregnation with insulating resin and curing of the insulating resin, includes: a plurality of coil conductors; and an insulating tape wound around the coil conductors a plurality of times to form an insulating layer, in which the insulating layer corresponding to at least a part of the coil conductors protruded from the core is provided so that a part of the wound insulating tape is adhered.

Abstract: The rotating electrical machine of the present invention includes a stator coil obtained by curing the impregnating resin injected into the whole stator coil unit after an electrically insulated coil unit with a mica tape having been wrapped around a conductor is slotted into stator iron core slots via a slot liner. The high-heat-resistance resin component of the slot liner contains at least an epoxy resin having 3 or more epoxy groups. The high-heat-resistance resin component of the mica tape contains at least an alicyclic epoxy resin. The impregnating resin contains a bifunctional epoxy resin, and an acid curing agent having one acid anhydride skeleton. With the impregnating resin, the high-heat-resistance resin components of the slot liner and the mica tape form a liner cured portion and a mica insulating layer portion as an integral unit of different resin compositions inside the slot.