Investigation Of Short Circuit Forces On Individual Turn Of Transformer Winding - FEM Simulation

Lim, Boon Kiat (2015) Investigation Of Short Circuit Forces On Individual Turn Of Transformer Winding - FEM Simulation. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In the rapid development of power industry, the need of power transformer capacity is increasing and higher voltage level is used in the system. In this situation short circuit fault easily occurs on transformer winding. When short-circuits occur the currents in transformer turn induce excessive forces in the transformer. These electromagnetic forces are important considerations in the design of transformer as the design of the windings and bracing must consider the magnitude of these forces and provide adequate strength to withstand them without significant mechanical deformation which could result failure. The study tested the short-circuit forces on individual turn of transformer winding is focus and the electromagnetic force due a short circuit current are solved by Finite Element Method (FEM). These electromagnetic forces on transformer winding are modelled by ANSYS and then simulated by FEM.

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