Distribution Transformer Temperature Field Simulation

In this paper the reasons are given and justification has been carried out for the implementation feasibility on the design phase of distribution transformer with economically reasonable and optimal construction - of temperature field simulation method based on Poisson equation solving, to which any stationary temperature field with internal heat sources corresponds. According to the given formalization of mathematical model to the Poisson equation form, the basis of which are results of solving the problem in fluid dynamics according to Navier - Stokes equations, calculations of the oil velocity field in the cooling system of transformer phase in a two-dimensional axial coordinates system were performed and on the basis of their values temperature field was calculated. To underline the importance of solving the Navier - Stokes problem, the results of temperature fields calculation without the movement velocity of the cooling material – oil - are given. Simulation of the thermal subsystem appropriate for implementation in the relevant scientific developments of electromagnetic devices and in the learning process was performed because it enables informed choice of magnetic induction in the magnetic core and the current density in the windings according to parameters of allowable in them heating temperatures.