Modeling, Analysis And Testing Of Transformer's Tank

Transformer is an important electrical equipment in electric power system, which is costly, complex in structure and distributed in wide fields. It assumes the heavy responsibility of power transmission and voltage conversion whose safe operation affects the stability and security of the entire power system directly. Oil-immersed transformer is the key equipment in electric power system with the widest spreading application. As external inclusive equipment of oil-immersed transformers, tank is one of the most important components. Practice shows that, in the course of transformers, 30 percent of the malfunctions are due to the unreasonable design of tank.The issue in this essay models, simulates, analyzes and tests oil-immersed transformer tank and its subsidiary parts. Then compare the results of theoretical analysis with results of the practice to find out shortages in design of transformer tank. The main work includes the following:Firstly, model and simulate the tank and its components with the application of PRO/E software design parameters according to 2D CAD drawings of the transformer tank and schedules in PDF format.Secondly, using the finite element analysis method, I will transform the established entity model under ANSYS finite element analysis software, then carry on finite element analysis towards the important parts of the tank (lifting hook and jacking pad). Applying ANSYS finite element analysis software, adopting its own modeling, selecting shell element, I establish the tank model and carry on finite element analysis of it.Finally, using strain gauge sensors to the mechanical resistance of electrical measuring method and applying DH5923 dynamic signal test system, I test the press on the test site under the actual conditions on scene. Data on the results of that test, then compare and calculate the test results and theoretical analysis in order to justify that theoretical analysis and experimental results are correspondent.The ultimate result of the analysis will be applied to guide and the design of optimize transformer tank.