GroCE: A Gross Climatic Effect Thermal Model for Three Phase Induction Motor

This paper presents a thermal circuit model to predict the behaviour of a three phase cage rotor induction motor during steady state operation under rated load. The proposed model GroCE (Gross Climatic Effect) allows the calculation of temperature distribution and thermal heat source parameters of motor including temperature variations due to different climatic conditions. A twelve months experimental study was conducted in variable climates of Indore City (India), on a 1.1 kW three phase Totally Enclosed Fan Cooled (TEFC) Induction motor. On the basis of study GroCE thermal model is developed which is helpful to design more efficient electric motorized system.