Study on Oil Flow Characteristics and Winding Temperature Distribution of Oil-immersed Transformer
DOI:
https://doi.org/10.13052/dgaej2156-3306.3531Keywords:
Oil-immersed transformer, fluid-structure coupling, horizontal oil channel, winding temperature rise.Abstract
The stability and effective functioning of a power grid depend upon the
reliability as well as safety prospects of a transformer which is the principal
component of the power system. The natural oil circulation in the oilimmersed transformer drifts the oil flow by the change in the density which is
again caused by the change in temperature. But the pressure is comparatively
low with respect to the oil pump causing the lower down of velocity which in
turn dissipates unimpressionable heat. In this paper, a noble attempt has been
made to build a natural oil circulation layer-type winding transformer based
on a fluid-solid coupling heat transfer model pertaining to the internal temperature field and flow field by using the fluid mechanics’ simulation software.
In the next stage, the authors have analyzed the temperature distribution, hot spot, position condition of the variable winding, the horizontal the oil channel
width as well as the temperature of the winding transformer. The paper is
of great significance as it examines the influence of the flow characteristics
of oil channel on the winding temperature distribution. The outcome can
significantly improve the structure of heat dissipation and the operating
environment of the transformer.
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