Hamza, A., El-Ahmer, M., Abd El-Azim, W. (2019). Different Techniques for Mitigation and Reduction Of Power Transformer Inrush Current. test, 40(1), 80-86. doi: 10.21608/erjsh.2019.406884
A. S. Hamza; Mahmoud Ahmed El-Ahmer; Wafaa Sobhy Abd El-Azim. "Different Techniques for Mitigation and Reduction Of Power Transformer Inrush Current". test, 40, 1, 2019, 80-86. doi: 10.21608/erjsh.2019.406884
Hamza, A., El-Ahmer, M., Abd El-Azim, W. (2019). 'Different Techniques for Mitigation and Reduction Of Power Transformer Inrush Current', test, 40(1), pp. 80-86. doi: 10.21608/erjsh.2019.406884
Hamza, A., El-Ahmer, M., Abd El-Azim, W. Different Techniques for Mitigation and Reduction Of Power Transformer Inrush Current. test, 2019; 40(1): 80-86. doi: 10.21608/erjsh.2019.406884

Different Techniques for Mitigation and Reduction Of Power Transformer Inrush Current

Engineering Research Journal (Shoubra)
Volume 40, Issue 1, April 2019, Pages 80-86    PDF (961.31 K)
Document Type: Research articles
DOI: 10.21608/erjsh.2019.406884
Authors
A. S. Hamza; Mahmoud Ahmed El-Ahmer; Wafaa Sobhy Abd El-Azim*
Electrical Engineering Dept., Faculty of Engineering at Shoubra, Benha Univ., Cairo, Egypt.
Abstract
Transformer is a vital and major component in any electrical power system. When transformer is energized high peaky current is observed. This current called inrush current. This current has undesirable effect on transformer including reduction of the life time of transformer, Protective relay miss-operation and melting of fuse elements. In this paper different techniques for the mitigation and reduction of the transformer inrush current are investigated. It is found that, the sequential phase energization is the most effective one.
Keywords
Power Transformer; Inrush current; mitigation techniques: switching angle; controlled switching; Transformer energization; Source resistance
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