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Title:Analiza usmerjenih kriterijev za zaznavanje zemeljskih stikov v srednjenapetostnih razdeljevalnih omrežjih : magistrsko delo
Authors:ID Hasikić, Mahir (Author)
ID Polajžer, Boštjan (Mentor) More about this mentor... New window
ID Horvat, Miran (Comentor)
Files:.pdf MAG_Hasikic_Mahir_2026.pdf (12,41 MB)
MD5: F1A7524F48432CFF9202566E8B017781
 
.zip MAG_Hasikic_Mahir_2026.zip (26,05 MB)
MD5: 31FB2D44BEA5F468FC7B05E78D62FA80
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Magistrsko delo obravnava možnosti uporabe usmerjene zemeljskostične zaščite v srednjenapetostnem omrežju z radialno in zazankano topologijo. V ta namen je bil izdelan simulacijski model dela omrežja RTP Rače 110/20 kV, s katerim so bile analizirane tokovne in napetostne razmere za različne lokacije zemeljskega stika, režime ozemljitve nevtralne točke in čase nastanka okvare. Rezultati kažejo, da zazankano obratovanje omrežja zahteva natančnejše načrtovanje zaščite, ustrezno časovno stopnjevanje ter upoštevanje prehodnih pojavov, ki lahko vplivajo na pravilno zaznavanje smeri okvare zaščitnih relejev.
Keywords:zemeljskostične okvare, ozemljitev nevtralne točke, usmerjena zemeljskostična zaščita, razdeljevalno omrežje, simulacijski model
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[M. Hasikić]
Year of publishing:2026
Number of pages:1 spletni vir (1 datoteka PDF (XVI, 109 str.))
PID:20.500.12556/DKUM-98350 New window
UDC:621.316.99(043.2)
COBISS.SI-ID:283361283 New window
Publication date in DKUM:30.06.2026
Views:193
Downloads:24
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:08.06.2026

Secondary language

Language:English
Title:Analysis of directional criteria for ground-fault detection in medium voltage distribution networks
Abstract:This master’s thesis examines the possibilities of applying directional earth-fault protection in a medium-voltage network with radial and looped topologies. For this purpose, a simulation model of a part of the Rače 110/20 kV substation network was developed to analyse current and voltage conditions for various earth-fault locations, neutral-point earthing methods, and fault inception times. The results indicate that looped network operation requires more precise protection planning, appropriate time grading, and consideration of transient phenomena, which may affect the correct detection of fault direction by protective relays.
Keywords:earth faults, neutral-point earthing, directional earth-fault protection, distribution network, simulation model


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