Title :
Approximate analysis of transient heat conduction in an induction motor during reactor starting
Author :
Sarkar, D. ; Naskar, A.K.
Author_Institution :
Dept. of Electr. Eng., Bengal Eng. & Sci. Univ., Howrah, India
Abstract :
Induction machines transient thermal analysis has been a subject of interest for machine designers in their effort to improve machine reliability. The stator being static is prone to high temperature and the study of transient thermal behaviour in the stator is useful to identify causes of failure in induction machines. The paper presents a two-dimensional transient heat flow in the stator of an induction motor using arch shaped elements in the r-θ plane of the cylindrical co-ordinate system. The model is applied to one squirrel cage TEFC machine of 7.5 kW. Finally the temperatures obtained by this two-dimensional approximation have been compared for different stator currents considering the time required for each stator current during the transient in reactor starting.
Keywords :
approximation theory; heat conduction; squirrel cage motors; stators; thermal analysis; approximate analysis; arch shaped elements; cylindrical coordinate system; induction machines transient thermal analysis; induction motor; machine reliability; power 7.5 kW; reactor starting; squirrel cage TEFC machine; stator currents; transient heat conduction; two-dimensional transient heat flow; Finite element methods; Heating; Induction motors; Inductors; Stator windings; Transient analysis; Design performance; Finite element methods; Induction motor; Insulation; Temperature rise; Thermal analysis; Transients;
Conference_Titel :
Power Electronics (IICPE), 2010 India International Conference on
Conference_Location :
New Delhi
Print_ISBN :
978-1-4244-7883-5
DOI :
10.1109/IICPE.2011.5728058
