Study and identification of short-circuit currents at the complex distribution network SIDER EL Hadjar (ex ArceloMittal-Algerie)

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Benhamida Hakim
Mesbah Tarek

Abstract

Because of an upcoming modernisation of the electricity distribution network in the SIDER EL HADJAR steel complex, a new calculation of the short-circuit current must be taken into account. The objectives are to determine the precise values of the currents of maximum and minimum fault by each start 225 kV, 63 kV and 15 kV of the distribution network to ensure the reliability of the existing system, and to validate the sizing of the 63 kV bus bar follows the increase of the load of the transformer station P4 by replacing the 70 MVA transformer with a 120 MVA transformer and comparing the results to the old computation. The calculation of short-circuit currents is a key step in qualifying the equipment to withstand the thermal and electromagnetic effects. So, to appreciate the reliability of numerical computation of the currents of short circuits requires modelling and simulations with software NEPLAN V5.


Keywords: Initial short-circuit current, power supply system (SIDER EL HADJAR), IEC 60909-0, peak value of short-circuit current, NEPLA software.


 


 

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How to Cite
Hakim, B., & Tarek, M. (2018). Study and identification of short-circuit currents at the complex distribution network SIDER EL Hadjar (ex ArceloMittal-Algerie). Global Journal of Computer Sciences: Theory and Research, 8(1), 24-31. https://doi.org/10.18844/gjcs.v8i1.3287
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Author Biography

Benhamida Hakim, Department of Electrical Engineering, Badji Mokhtar––Annaba University, ISF, Annaba, Algeria

STATEMENT To my best knowledge and belief, I Benhamida Hakim...corresponding author of the article: Study and identification of short-circuit currents at the Complex Distribution Network SIDER-ELHadjar (ex ArceloMittal-Algerie)... am stating that this work was not published prior to this date and does not contain parts taken from other resources without quotation. Date Full name and signature 25/03/2018 Benhamida Hakim 25/03/2018 Mosbah Tarek