Transformer electromagnetic modelling based on DC hysteresis measurement

D Albert, A Fröhlich, S Zirka, J Raith - e+ i Elektrotechnik und …, 2024 - Springer
The transient modelling of large five-legged transformers remains to be an actual challenge.
The absence of a direct relation between the measured terminal currents and characteristics …

Current transformer hysteresis modelling for condition assessment under standard and non-standard operation

D Albert, L Domenig, N Schwartze, Z Hadzic… - e+ i Elektrotechnik und …, 2024 - Springer
The working principle of a current transformer (CT) is based on the physical effect of
magnetic induction. The current on the primary side is transformed proportionally to the …

Modeling transformer operations under dc bias

S Zirka, Y Moroz, D Albert, R Walling - Energy Efficiency of Modern Power …, 2024 - Elsevier
The ever-growing number of publications on transformer modeling under saturation
conditions, for instance during geomagnetically induced currents and inrush current events …

On the Method of Harmonic Balance for Lumped-Element Transformer Models

A Sauseng, A Reinbacher-Köstinger, D Albert… - 2024 - authorea.com
Incorporating the magnetic core material in a lumped-element transformer model generally
results in a nonlinear network with hysteresis. This network can be solved subsequently in …

[PDF][PDF] Transformer Diagnosis and Modeling using DC Hysteresis Measurement

D Albert, A Pirker, P Schachinger, A Fröhlich, F Belavic… - researchgate.net
The purpose of this study is to introduce and assess the applicability of transformer terminal
dc hysteresis measurements on power transformers for both modeling and diagnostic …