SIMULATION OF THE THERMO-PHYSICAL PROPERTIES  OF AN INSULATION SYSTEM WITH STOCHASTIC GEOMETRY OF THE CALCULATED AREA

Electrical engineering
Authors:
Andreev Aleksandr M. Dubitsky Semen D. Muravjova Tatiana N. Shikova Tatiana M.
Abstract:

The paper considers the problems of calculating the thermal conductivity of stator slot wedging of power electrical machines. A method for calculating the effective thermal conductivity of a stator slot with geometric factors is presented. The boundary values of the effective thermal conductivity of the stator slot of power electrical machines for different variants of stator sealing and thermal conductivity values of groundwall insulation materials and slot wedging were found. It was established that the value of the effective thermal conductivity of the stator slot is primarily determined by the thermal conductivity of the insulation material, and the thermal conductivity of the sealing spacer materials has practically no influence on this value.