New fuzzy stabilisation scheme against transformer inrush currents

2008 ◽  
Author(s):  
W. Rebizant ◽  
L. Goncerzewicz ◽  
L. Schiel
Keyword(s):  
Inrush Currents

Evaluation of the Power Transformer Magnetizing Inrush Currents

2020 ◽  
Vol 10 (10) ◽  
pp. 20-32
Author(s):  
Aleksey A. KUVSHINOV ◽  
◽  
Vera V. VAKHNINA ◽  
Aleksey N. CHERNENKO ◽  
◽  
...  
Keyword(s):  
Power Transformer ◽  
Geomagnetic Disturbance ◽  
Inrush Current ◽  
Geomagnetic Disturbances ◽  
Disturbance Intensity ◽  
Magnetizing Inrush Current ◽  
Inrush Currents ◽  
Instantaneous Values ◽  
The Mathematical Model ◽  
Analytical Expressions

The mathematical model of a shell-core power transformer’s magnetization branch is substantiated. By using the model, analytical expressions for the magnetizing current instantaneous values under the conditions of geomagnetic disturbances can be obtained. Quantitative assessments of the magnetizing inrush current amplitudes and durations versus the geomagnetic disturbance intensity are obtained. The dynamics of the power transformer magnetic system saturation transient and changes in the magnetization inrush current amplitudes and durations after a sudden occurrence of geomagnetic disturbances are shown. The error of estimating the magnetizing inrush current amplitudes under geomagnetic disturbances is determined based on comparison with experimental data.

Analysis of electromagnetic-mechanical stresses on the winding of a transformer under inrush currents conditions

2016 ◽  
Vol 50 (4) ◽  
pp. 511-524 ◽  
Author(s):  
Wellington da S. Fonseca ◽  
Diorge de S. Lima ◽  
Adry K.F. Lima ◽  
Newton S. Soeiro ◽  
Marcus V.A. Nunes
Keyword(s):  
Mechanical Stresses ◽  
Inrush Currents

The Effect of Different Core Materials on Transformer Inrush Currents

2018 ◽  
Author(s):  
Wenxia Sima ◽  
Yonglai Liu ◽  
Potao Sun ◽  
Yuan Zhou ◽  
Daixiao Peng ◽  
...  
Keyword(s):  
Inrush Currents ◽  
Core Materials
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