TEMPERATURE RISE OF AN INDUCTION-MOTOR DURING PLUGGING

The problem of three dimensional transient heat flow in the stators of induction motors is solved using a finite element formulation employing arch shaped elements. The shape functions and exact solutions are derived algebraically for utmost economy in computation. The temperature distribution has been determined considering convection from the surface and the two ends. The temperature distribution has also been determined by specifying temperature of the surface and the ends. First of all a simple cylinder has been taken as an example. Then the temperature at different location in the stator of the induction motor has been computed during transient.