Most of the recent studies showed that if the motor rewinding is carried out according to the international best practices, the motors can run without any significant changes in efficiency for two rewinding cycles. Therefore, this manual "Best Practice Manual in Rewinding Three Phase Induction Motors", comes as an attempt at the "Egyptian Programme for Promoting Industrial Motor Efficiency" by UNIDO focusing on improving the efficiency of Electric Motor-Driven Systems (EMDS) and accelerating the market penetration of energy-efficient motors in the industrial sector through train motors' rewinders on the best international practices that aim at preventing motors efficiencies from deterioration.

This manual will show the best practices of motor rewinding in general, and focuses on the squirrel cage induction motors as they are the most commonly encountered type of electric motors in the industry and the other sectors. The manual was developed based on "Motor Rewinding Guideline and Repair Facility Instructions", by "Egyptian Programme for Promoting Industrial Motor Efficiency”, UNIDO as well as best practices for motor repair/rewinding, presented in the Electrical Apparatus Service Association (EASA) guidelines, IEEE Std. 1068-2015, IEEE Std. 43-2015, and IEC 60034-1 to IEC 60034 -31 " Rotating electrical machines".