COIL FOR ROTARY ELECTRIC MACHINE, MANUFACTURING METHOD THEREOF, AND ROTARY ELECTRIC MACHINE

PROBLEM TO BE SOLVED: To provide a coil for a rotary electric machine of which the insulation property is extremely improved and which extremely improves durability and, in particular, a voltage-applied life.SOLUTION: The present invention relates to a coil for a rotary electric machine, a method of manufacturing the coil, and the rotary electric machine with the coil. The coil for the rotary electric machine comprises a conductor, an insulation layer covering the conductor, and a corona prevention layer covering the insulation layer. The insulation layer is a thermally solidified body of a laminate of tape materials each containing mica. The coil for the rotary electric machine is characterized in that A=T×M represented by a product of a mica quantity M (unit: kg/m) per unit volume in the insulation layer and a number T of laminated layers of the tape materials (unit: number of layers/m) per unit thickness in the insulation layer is equal to or greater than 7500000(unit: kg×layer/m/m).SELECTED DRAWING: Figure 2 【課題】極めて絶縁特性の高く、耐久性、特に課電寿命を著しく向上した回転電機のコイルを提供する。【解決手段】導体と、前記導体を被覆した絶縁層と、前記絶縁層を被覆したコロナ防止層とを具備してなり、前記絶縁層がマイカを含有するテープ材の積層物の加熱固化体である回転電機のコイルであって、前記絶縁層における単位体積あたりのマイカ量Ｍ（単位：ｋｇ／ｍ３）、および前記絶縁層における単位厚さ当りの前記テープ材の積層層数Ｔ（単位：層数／ｍ）との積で表されるＡ ＝ Ｔ・Ｍが、７５０００００（単位：ｋｇ・層／ｍ３／ｍ）以上であることを特徴とする回転電機のコイル、このコイルの製造方法、並びにコイルを具備してなる回転電機。【選択図】図２