MULTIPHASE ARMATURE

PURPOSE:To shorten an coil end with no change of extension by a method wherein one of the slots to be formed into an armature iron core, the section of the slot, into which only one coil is inserted, is made to lean toward the position of the coil extension. CONSTITUTION:Of the slots 1-36 of the armature, into which n-phase windings with an electrically 2pi/n interval and same coil number and constitution of extension are inserted, the section of the slot, whereinto only one coil is inserted, is formed to be deflected from the center line so that the section in the position of coil extension may be larger than another section l. Further the slot, whereinto two coils are inserted, is formed to be symmetrical to the center line (d).