Electric Motor Rewinding in India

Executive Summary


India, world’s third largest consumer of electricity behind China and USA, consumed ~1.16 Mn GWh in FY19. The country’s electricity sector is dominated by fossil fuels, especially coal, leading to ~ 750 Mn T of Green House Gases (GHG) emissions. Being part of the Paris Agreement, India has pledged to reduce carbon emissions by 33-35% by 2030 as compared to 2005 levels. Bureau of Energy Efficiency (BEE) through its National Mission for Enhanced Energy Efficiency (NMEEE) is actively focusing on implementing innovative business models for energy efficiency thereby reducing carbon emissions.


Electric motors are extensively used in wide range of applications and hence important from energy efficiency perspective. Mechanical and electrical factors, working conditions, etc. damage electric motor windings. Frequent rewinding of electric motors using improper rewinding practices degrades the motor efficiency and therefore higher electricity consumption and each unit of extra power consumed leads to emission of 0.9kg of GHG emissions. This research paper deliberates on the practices followed for rewinding of electric motors in industrial LT motors, grid-connected agriculture pump motors and housing fans motors in India and potential energy savings by adopting best motor rewinding practices.



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