Finite-element analysis of short-circuit electromagnetic force in power transformer

HM Ahn, JY Lee, JK Kim, YH Oh… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
Transient electromagnetic forces in radial and axial directions induce critical mechanical
stress on windings and transformers. In this paper, short-circuit electromagnetic forces that …

Calculating the leakage inductance for transformer inter-turn fault detection using finite element method

A Ehsanifar, M Dehghani… - … Iranian Conference on …, 2017 - ieeexplore.ieee.org
The inter-turn fault is a common internal fault in the windings of transformers. This fault can
cause the increase of transformer leakage flux. In this paper, the leakage inductance caused …

[PDF][PDF] Characterization of power transformer electromagnetic forces affected by winding faults

V Behjat, A Shams, V Tamjidi - J. Oper. Autom. Power Eng, 2018 - core.ac.uk
Electromagnetic forces in power transformer windings are produced by interaction between
the leakage fluxes and current passing them. Since the leakage flux distribution along the …

[HTML][HTML] Optimized gap positions for improved leakage impedance in dry-type transformer design

K Dawood, S Tursun - Results in Engineering, 2024 - Elsevier
The power and distribution transformers must be properly designed to operate in a variety of
conditions and manufactured following all applicable international standards to provide a …

On simplified calculations of leakage inductances of power transformers

T Sobczyk, M Jaraczewski - Energies, 2020 - mdpi.com
This paper deals with the problem of the leakage inductance calculations in power
transformers. Commonly, the leakage flux in the air zone is represented by short-circuit …

Assessment of the use of FEM for computation of Electromagnetic Forces, Losses and Design of Transformers

G Walia, D Bhalla - Journal of Physics: Conference Series, 2020 - iopscience.iop.org
This paper reviews the published work on power transformers for assessment of the
electrical, magnetic losses, and electromagnetic forces produced during normal and short …

Leakage inductances of transformers at arbitrarily located windings

M Jaraczewski, T Sobczyk - Energies, 2020 - mdpi.com
The article presents the calculation of the leakage inductance in power transformers. As a
rule, the leakage flux in the transformer window is represented by the short-circuit …

[PDF][PDF] Finite element calculation of leakage reactance in distribution transformer wound core type using energy method

KR Hameed - Journal of Engineering and Sustainable Development, 2012 - iasj.net
This paper presents the accurate energy method for calculation of leakage reactance of
wound core transformers. It takes into consideration the curvature of the winding. The energy …

Electromagnetic modelling of power transformers for study and mitigation of effects of GICs

S Mousavi - 2015 - diva-portal.org
Geomagnetic disturbances that result from solar activities can affect technological systems
such as power networks. They may cause DC currents in power networks and saturation of …

Three-phase transformer representation using FEMM, and a methodology for air gap calculation

E Saraiva, MLR Chaves… - 2008 18th International …, 2008 - ieeexplore.ieee.org
This work deals with the representation of three-phase and three-limb transformers in two
dimensions using FEMM (finite element methods on magnetics). The transformer …