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Title:Sekundarno preizkušanje distančne zaščite pri enofaznih okvarah : diplomsko delo
Authors:ID Černelč, Žan (Author)
ID Polajžer, Boštjan (Mentor) More about this mentor... New window
Files:.pdf VS_Cernelc_Zan_2021.pdf (2,39 MB)
MD5: CC6EBD11ED44FE617F593E484A021890
PID: 20.500.12556/dkum/85dc1f97-adf3-42d2-885f-28fd0dfc88e1
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:V diplomskem delu so opisani različni algoritmi za izračun kratkostične impedance pri enofaznih okvarah ter postopek za sekundarno preizkušanje distančne zaščite pri enofaznih okvarah. Preizkušali smo delovanje zaščitnih relejev Siemens S7A611 in ABB REL 521, ki uporabljata različna algoritma za izračun kratkostične impedance. Preizkuse smo izvajali s pomočjo računalniškega programa Test Universe in naprave za sekundarno preizkušanje OMICRON CMC 256-6. V program Test Universe smo vnesli različne preizkusne točke, ter preverili, ali sta releja pri teh pravilno delovala. Rezultati so pokazali, da distančna zaščita releja Siemens 7SA611 deluje zansljivo v celotnem področju poligonske karakteristike, medtem ko je delovanje distančne releja ABB v imaginarni smeri manj zanesljivo.
Keywords:sekundarno preizkušanje, distančna zaščita, rele
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[Ž. Černelč]
Year of publishing:2021
Number of pages:X, 51 str.
PID:20.500.12556/DKUM-80097 New window
UDC:621.316.925.45(043.2)
COBISS.SI-ID:87472643 New window
Publication date in DKUM:18.10.2021
Views:1290
Downloads:138
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:30.08.2021

Secondary language

Language:English
Title:Secondary testing of a distance protection for single-phase faults
Abstract:The thesis describes various algorithms for calculating short-circuit impedance during single-phase faults and the procedure for secondary testing of distance protection relays. We tested the operation of protection relays Siemens S7A611 and ABB REL 521, which use different algorithms to calculate the short-circuit impedance. The testing was performed using the computer program Test Universe and the secondary testing device OMICRON CMC 256-6. We entered various test points in the Test Universe program and checked whether the relays worked adequately. The obtained result showed the reliable operation of a distance protection relay Siemens 7SA611 in the entire range of quadrilateral characteristics. The reliability of the operation of distance protection relay ABB REL 521 was reduced in the imaginary direction.
Keywords:secondary testing, distance protection, relay


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