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undergraduate thesis
Diferencijalna zaštita energetskih transformatora
2020. urn:nbn:hr:190:420532
Rehorović, Ivan
University of Rijeka
Faculty of Engineering
Department of Electric Power Systems
Section of Electric Facilities and Power Systems

Cite this document

Rehorović, I. (2020). Diferencijalna zaštita energetskih transformatora (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:420532

Rehorović, Ivan. "Diferencijalna zaštita energetskih transformatora." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:420532

Rehorović, Ivan. "Diferencijalna zaštita energetskih transformatora." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:420532

Rehorović, I. (2020). 'Diferencijalna zaštita energetskih transformatora', Undergraduate thesis, University of Rijeka, Faculty of Engineering, accessed 16 February 2025, https://urn.nsk.hr/urn:nbn:hr:190:420532

Rehorović I. Diferencijalna zaštita energetskih transformatora [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2020 [cited 2025 February 16] Available at: https://urn.nsk.hr/urn:nbn:hr:190:420532

I. Rehorović, "Diferencijalna zaštita energetskih transformatora", Undergraduate thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:190:420532

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Metadata
TitleDiferencijalna zaštita energetskih transformatora
Title (english)Differential protection of power transformers
AuthorIvan Rehorović
MentorMarijana Živić Đurović (mentor)
Committee memberRene Prenc (predsjednik povjerenstva)
Committee memberMarijana Živić Đurović (član povjerenstva)
Committee memberBranka Dobraš (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Electric Power Systems)
(Section of Electric Facilities and Power Systems)
Rijeka
Defense date and country2020-07-10, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
Diferencijalna zaštita je jedna od najvažnijih zaštita transformatora. Pouzdana je i sigurna zaštita transformatora za međufazne kratke spojeve, spojeve između zavoja i kod proboja izolacije prema uzemljenim dijelovima, ako je neutralna točka mreže uzemljena preko djelatnog otpora. Princip rada diferencijalne zaštite je sadržan u komparaciji dviju struja iste faze koje su u normalnim okolnostima međusobno jednake. Energetski transformatori preko svog magnetskog jama i namota prenose goleme količine energije, drugim riječima kompletnu energiju na ugrađenom mjestu, te je neophodno da istovremeno ostane dobra zaštita i minimalni gubici. U ovom radu obrađeni su i nadomjesni modeli energetskih transformatora, te parametri transformatora. Nadalje, prikazane su posljedice kvara transformatora, te otklanjanje kvarova koji utječu na transformator. Napravljen je primjer diferencijalne zaštite u kojem su računate impedancije mreže, transformatora i linije, te granični faktor toka.
Abstract (english)
Differential protection is one of the most important forms of transformer protections. Reliable and safe protection of transformers for intermediate phase short circuits, between coils and in case of electrical breakdown towards grounded parts, when the neutral point of the network is grounded via active resistance. The principle of operation of differential protectin is contained in the comparison of two currents of the same phase which are normally equal to each other. Power transformers transmit huge amounts of energy through their magnetic pit and windings, in the other words complete energy at the installed site, and it necessary to maintain both good protection and minimal losses at the same time. This paper also deals with replacement models for power transformers and transformer parameters. Furthermore, the consequences of transformer failure are ahown, as well as the troubleshooting of failures that affect the transformer. An example of differential protection is made in which the impedances, transformer and powerline impendances, as well as current limiting factor are calculated.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:420532
Study programmeTitle: Undergraduate Vocational Study of Naval Architecture
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka (stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2020-12-16 13:31:29