Investigation of winding type effect on leakage flux of single phase shell type transformer using FEM

Kashtiban, A.M.; Vahedi, Abolfazl; Halvaei, A.

doi:10.1109/icems.2005.202860

Cited by 10 publications

(3 citation statements)

References 9 publications

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“…Consequently, the distribution of the electric field and the distribution of forces on the windings of the transformer are uneven. In addition, the insulation strength and winding strength of the amorphous transformer will be worse than those of the silicon steel core transformer [13,14].…”

Section: Introductionmentioning

confidence: 99%

Computation of electromagnetic forces in the windings of amorphous core transformers

2024

Archives of Electrical Engineering

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Electromagnetic forces generated by the short circuit current and leakage flux in low-and high-voltage windings of distribution transformers as well as amorphous core transformers will cause the translation, destruction, and explosion of the windings. Thus, the investigation of these forces plays a significant role for researchers and manufacturers. Many authors have recently used the finite element method to analyze electromagnetic forces. In this paper, an analytic model is first developed for magnetic vector potential formulations to compute the electromagnetic forces (i.e., axial and radial forces) acting on the low-and high-voltage windings of an amorphous core transformer. The finite element technique is then presented to validate the results obtained from the analytical model. The developed model is applied to an actual problem.

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Section: Introductionmentioning

confidence: 99%

Computation of electromagnetic forces in the windings of amorphous core transformers

2024

Archives of Electrical Engineering

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“…Knowledge of the magnetic field distribution allows for determining the transformer key parameters without the need to build expensive prototypes or perform time-consuming and highly approximate analytical calculations [8,9]. In addition, knowledge of the magnetic flux density vector values at individual points in the area surrounding the core and windings makes it possible to determine the windings leakage reactance for different configurations of the core and windings arrangement [10]. In addition, it is possible to determine the impact of changes in these configurations on the transformer parameters.…”

Section: Introduction 1introductionmentioning

confidence: 99%

Effect of Magnetic Shunts on Shell-Type Transformers Characteristics

Tomczuk,

Weber

2023

Energies

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A three-dimensional analysis of the leakage magnetic field in a transformer with beveled edges in a magnetic shunt is described. This paper contains a mathematical description of the finite element method used in performing numerical calculations. Formulas allowing to determine the differential and integral parameters of the magnetic field were presented. Magnetic flux density distributions and the points with high values were determined in the shell-type core and movable shunt sub-areas. For different positions of the magnetic shunt, the short-circuit transformer reactance was calculated as the integral parameter of the above-mentioned magnetic field analysis. Their amounts for the extreme positions of the shunt were given, as well. The movable magnetic shunt geometry impact on the short-circuit current value is given. In order to validate the calculation results, the research included some point measurements of magnetic flux density vectors and the winding reactances as well, and good compliance with the simulation data has been obtained. Thus, this analysis can also be applied to other objects with movable shunts in their magnetic systems.

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“…Enokizono and Soda [6] calculated the iron core loss of transformers by FEM. Kashtiban et al [7] researched the influence of winding modes of transformer coils on leakage flux. Yan et al [8] presented a theoretical analysis and numerical simulations of magnetic field distributions of a 3-phase electric transformer.…”

Section: Introductionmentioning

confidence: 99%

Temperature field simulation research on the leakage inductance transformer

et al. 2018

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The structural and electrical parameters of leakage inductance transformers can significantly affect the efficiency, noise, and vibration of microwave ovens. The paper proposed a new iron core structure with finite element modeling and simulations of a leakage inductance transformer by both the electromagnetic field and system design simulation software. Different silicon steel sheet models were used for the upper and lower parts of the proposed iron core to reduce the loss and heat of the leakage inductance transformer. The iron core scheme was changed from the traditional E-I type to the E-E type. The feasibility of the new iron core scheme was tested by numerical results which showed that the maximum temperature rise of the leakage inductance transformer decreased significantly.

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Investigation of winding type effect on leakage flux of single phase shell type transformer using FEM

Cited by 10 publications

References 9 publications

Computation of electromagnetic forces in the windings of amorphous core transformers

Computation of electromagnetic forces in the windings of amorphous core transformers

Effect of Magnetic Shunts on Shell-Type Transformers Characteristics

Temperature field simulation research on the leakage inductance transformer

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