CREATION OF A STRUCTURAL MODEL OF AN POWER TRANSFORMERS IN THE FORM OF AC TRANSFORMING COMPLEXES

Due to the multiple transformation of electrical energy, the rated capacity of power transformers can be 8 or more times the rated generation capacity. Therefore, the state of reliability of power transformers, their parameters and characteristics affecting on the reliability and efficiency of power networks, electrical production facilities, and electrical equipment of consumers. High indicators of operational reliability should be provided by the corresponding level of quality of design of power transformers both at a stage of development of tender offers, and during preparation of production of new or modernized types of power transformers. Im-proving approaches to design and increasing the accuracy of design data requires the use of modern specialized software for spatial modeling of electromagnetic and elec-tro-thermal processes in testing and rated modes of operation based on 3D geometric models of parts, assemblies, systems in the active parts of power transformers. To improve the design quality of power transformers, a unitary structure is proposed, which combines tuples of design data of certain types of power transformers. Crea-tion of a unitary structure of power transformer projects for the production program of the enterprise provides a significant time reduction to develop projects of new types of power transformers by importing the generated design data of the same parts, components, systems from previously developed power transformer projects. Application of unitary structure of power transformers projects allows to reduce time for creation and import of detailed 3D geometric model of power transformer in structure of specialized software of field modeling of electromagnetic and electro-thermal processes. This allows to significantly reduce the cost of design preparation of production, increase the accuracy of design data and implement design solutions to increase the level of reliability and efficiency of operation of power transformers. Therefore, the design data for the unavailable parts, components, elements of individual systems in a transformer are displayed in the corresponding design tuple "zero" elements. For development of projects of new types of power transformers, import of the structured design data of identical details, knots, systems of earlier developed projects of power transformers is carried out. Updating the unitary structure of power transformers is provided by supplementing the existing unitary structure with a tuple of design data of a new type of power transformer. This provides a significant reduction in design time and increase the accuracy of determining new design data.