Heat flow in the stator core of large turbine-generators, by the method of three-dimensional finite elements part II: Temperature distribution in the stator iron

Abstract

The steady state heat flow problem in the atator cores of large turbine-generators is solved using three-dimensional finite elements. The results are compared with those obtained by a thermal resistive network procedure and with factory test data. Three-dimensional plots of core iron isotherms are shown which describe the entire temperature field. Recommendations are made to extend the application of this powerful technique.