Hitachi, Ltd.

Naohiro Hiruta

Kenji Ikeda

Motonobu Iizuka

Hiroaki Kojima

Hisashi Morooka

Shoichi Maruyama

Daisuke Kamegawa

Yoshihiro Haraguchi

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.

Rotating electrical machine coil, production method of rotating electrical machine coil, and rotating electrical machine

A dry mica tape includes a base material, a binder resin layer A formed on the base material and including an epoxy resin and an accelerator, a mica paper layer formed in contact with the binder resin layer A, and a binder resin layer B formed in contact with the mica paper layer, including an epoxy resin, and providing a cured resin with a higher glass transition point than that of a cured resin of an impregnating varnish only by reacting with an impregnating varnish including an epoxy resin impregnated into the dry mica tape wound around a conductor.

Dry mica tape and insulation coils manufactured therewith

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Tokyo, Japan

Naohiro Hiruta