Calculation of temperature distribution of air-cooled three-phase dry transformer
Abstract
We want to make longer the life of the transformer and we need to effectively solve cooling and heat transfer problems. A mathematical model in this paper is developed and set up to calculate the heat for a 560kVA power transformer. This paper is performed by two experimental methods and Computational Fluid Dynamics. Thermal analysis and calculation are performed on various points on the coil or barrel surface. Correspondingly, the temperature distribution is calculated for the different working modes of the transformer in the case of no-load and rated and short-circuit. Description of heat transfer, temperature flows in an explosion-proof enclosure. In addition, the hottest spots on the coil or sheath surface are found. From the results, it is open to study thermal calculation method models for different electrical equipments and machines.
Moraref