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undergraduate thesis
Visokonaponski prekidači
2021. urn:nbn:hr:187:268853
Zubović, Ivo
University of Rijeka
Faculty of Maritime Studies, Rijeka
Department of Marine Electronics and Communications

Cite this document

Zubović, I. (2021). Visokonaponski prekidači (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Maritime Studies, Rijeka. Retrieved from https://urn.nsk.hr/urn:nbn:hr:187:268853

Zubović, Ivo. "Visokonaponski prekidači." Undergraduate thesis, University of Rijeka, Faculty of Maritime Studies, Rijeka, 2021. https://urn.nsk.hr/urn:nbn:hr:187:268853

Zubović, Ivo. "Visokonaponski prekidači." Undergraduate thesis, University of Rijeka, Faculty of Maritime Studies, Rijeka, 2021. https://urn.nsk.hr/urn:nbn:hr:187:268853

Zubović, I. (2021). 'Visokonaponski prekidači', Undergraduate thesis, University of Rijeka, Faculty of Maritime Studies, Rijeka, accessed 10 April 2024, https://urn.nsk.hr/urn:nbn:hr:187:268853

Zubović I. Visokonaponski prekidači [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Maritime Studies, Rijeka; 2021 [cited 2024 April 10] Available at: https://urn.nsk.hr/urn:nbn:hr:187:268853

I. Zubović, "Visokonaponski prekidači", Undergraduate thesis, University of Rijeka, Faculty of Maritime Studies, Rijeka, Rijeka, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:187:268853

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Metadata
TitleVisokonaponski prekidači
Title (english)High voltage circuit breakers
AuthorIvo Zubović
MentorAleksandar Cuculić (mentor)
GranterUniversity of Rijeka
Faculty of Maritime Studies, Rijeka
(Department of Marine Electronics and Communications)
Rijeka
Defense date and country2021-09-20, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Traffic and Transport Technology
Abstract
Prekidači su neizostavni dio svake elektroenergetske mreže i imaju temeljni zadatak uklapanja i vođenja struje u normalnim pogonskim stanjima kao i prekidanje pojavom nenormalnog pogonskog stanja. Na brodovima s visokim naponom prevladava izmjenična struja i primjenjuju se elektromehanički prekidači. Prilikom odvajanja kontakata nastaje električni luk za čije gašenje se koristi plin sumporov heksafluorid ili vakuum. Cilj smanjenja utjecaja na okoliš i povećanje ekonomske učinkovitosti broda, dovode do ponovnog otkrivanja istosmjerne struje. Značajan izazov istosmjernog razvoda predstavljaju upravo prekidači. Konvencionalni istosmjerni mehanički i hibridni prekidači ne mogu zadovoljiti potrebe ultra brzog prekidanja struje kvara u mikrosekundama i kao rješenje se nameću poluvodiči ventili. Razvojem poluvodičkih tehnologija 2019. godine po prvi put uspješno tipski ispitani bezlučni poluvodički prekidači za područje niskog napona, dok su na području visokog napona u fazi istraživanja i čija se primjena očekuje u bliskoj budućnosti.
Abstract (english)
Circuit breakers are essential part of any power grid and have the fundamental task of closing electric circuit and carrying current under normal operating conditions, as well as interrupting current under abnormal operating conditions. On the vessels with HV power grid, the AC current prevails and so does the use of electro-mechanical circuit breakers. During the contact separation, the electric arc is being formed and SF6 gas or vacuum is used for its quenching. Achieving the low environmental footprint while maximizing vessel’s economic efficiency has led to reinvention of DC current. One of the challenges is absence of adequate circuit breakers. Mechanical DC and hybrid breakers are unable to overcome requirement of ultra-fast switching and the solution has been found in the semiconductor technology. Research has led to first type tested solid state DC circuit breakers for LV applications in the year 2019. while for the HV applications, the breakers are still in research and their application is anticipated in the near future.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:187:268853
Study programmeTitle: Marine Electronic Engineering and Information Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektroničke i informatičke tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektroničke i informatičke tehnologije)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2021-12-02 08:14:45