هیدرو دینامیک و انتقال حرارت در کانال های خنک کننده پر از روغن ترانسفورماتور قدرت با سیم پیچ بالا

The flow features have an influence on the thermal state of winding coils of the transformer with the natural cooling system. At such oil flowing, in different channels, the heat transfer coefficient varies within the limits of 50–100 W/(m2 K), and the radial component of velocity is changed over the range of 2.1·10−4–2.2·10−3 m/s. Thus the region with maximum temperature values is removed towards oil flowing along the coil radius.