Development of a Totally Enclosed Fan-Cooled Traction Motor

Optimization of thermal modes and cooling systems of the induction traction engines of trams

“…There are possible ways of solving the problem: reducing losses in the elements of traction engines design [1,11] and increasing the efficiency of air-cooling system [2,9], as well as the installation of a water cooling system [4]. Optimization of the processes of designing the traction engines, common at the enterprises of leading electrotechnical manufacturers, makes it possible to create traction engines optimal by efficiency [2,12].…”

“…Optimization of the processes of designing the traction engines, common at the enterprises of leading electrotechnical manufacturers, makes it possible to create traction engines optimal by efficiency [2,12]. However, the operating modes of the electric rolling stock, which moves at different speeds and at different loading regimes [13], considerably reduce the overall efficiency of electric rolling stock [14].…”

“…The processes of energy conversion in the traction engines of tram carriages are accompanied by its losses in the elements of design due to physical processes at energy conversion [1,2]. Temperature of the elements of design of traction engines increases over the time of operation and can exceed permissible structural limits [2,3].…”

“…Temperature of the elements of design of traction engines increases over the time of operation and can exceed permissible structural limits [2,3]. This is especially true for temperature of the insulation of the motor windings, which is constrained by a class of the applied insulation [3,4].…”

Radial fan simulations by computational fluid dynamics and experimental validation

“…Since a long time ago fans have been analysed to improve the heat removal from electrical machines [5]- [8]. And in the last years, the progress in computers and computational fluid dynamics (CFD) has allowed to simulate the air motion related to electrical machines [1], [9].…”