Fractional Slot Windings — Lesson 5

Guidelines for Designing Concentrated Winding Fractional Slot fractional slot winding A theory is developed by which the electrical design of a standard fractional-slot winding may be readily established Formulae are given for the hash slot Such a winding is referred to as a fractional slot winding because the conductors of a single phase occupy a fractional number of slots, for example, slots

slot fdd If the number of slotspolephase is fractional and superior to 1, the winding is called fractional-slot winding If the number of slotspolephase is