NEMA - National Electrical Manufacturers Association - National Electrical Manufacturers Association.Heat Gain from Electrical Motors in Continuous Operation - Amount of heat transferred from electrical motor to ambient room vs.The winding resistance is most likely the easiest parameter in brushless motors to understand. Electrotechnical Abbreviations - Abbreviations according the International Electrotechnical Commission (IEC). Brushless motor winding resistance is a motor constant that is directly related to the efficiency of the motor.Electrical Vehicle Charging - Power vs.