The study of heat transfer in the horizontal channel of the disk windings of power transformers.
A method for determining heat transfer coefficients based on the use of heat exchange in transformer oil has been proposed. Since the horizontal surfaces of the coils are the main heat sources, the temperature field of the oil in the horizontal channel has been studied. . The results obtained are compared with the calculation of empirical formulas. The advantage is shown the proposed method for determining local heat exchange conditions on horizontal surfaces of the coil.