Open AccessMethodology for assessing the degree of moisture ingress into the insulation of traction electric motors of diesel locomotives
Author(s) -
Vladimir Grachev,
AUTHOR_ID,
А В Грищенко,
M. Schreiber,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
bûlletenʹ rezulʹtatov naučnyh issledovanij
Language(s) - English
Resource type - Journals
ISSN - 2223-9987
DOI - 10.20295/2223-9987-2021-4-47-56
Subject(s) - moisture , materials science , degree of saturation , traction (geology) , traction motor , electromagnetic coil , composite material , saturation (graph theory) , electric motor , mechanical engineering , environmental science , electrical engineering , engineering , mathematics , combinatorics , soil science , soil water
Objective: To develop a method for assessing the degree of moisture absorption by the traction electric motor (TEM) insulation. Methods: Based on the analysis of one-dimensional diffusion of liquid into the insulating material of the TEM windings, it has been shown that cracks increase its saturation with liquid. The proposed analytical solution for anisotropic diffusion of liquid into a cracked insulating material has been investigated. Results: An analytical model has been developed that describes the ideal moisture absorption according to the Fick's law, and it has been shown that it is suitable for calculating the diffusion of moisture into the insulating materials of the TEM windings. Practical importance: Further research should be aimed at obtaining material properties in a moisture-controlled environment