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master's thesis
Analiza atmosferskih prenapona na energetskim transformatorima
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2021. urn:nbn:hr:168:691159
Vojvodić, Matej
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Vojvodić, M. (2021). Analiza atmosferskih prenapona na energetskim transformatorima (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:691159

Vojvodić, Matej. "Analiza atmosferskih prenapona na energetskim transformatorima." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2021. https://urn.nsk.hr/urn:nbn:hr:168:691159

Vojvodić, Matej. "Analiza atmosferskih prenapona na energetskim transformatorima." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2021. https://urn.nsk.hr/urn:nbn:hr:168:691159

Vojvodić, M. (2021). 'Analiza atmosferskih prenapona na energetskim transformatorima', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 11 July 2024, https://urn.nsk.hr/urn:nbn:hr:168:691159

Vojvodić M. Analiza atmosferskih prenapona na energetskim transformatorima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2021 [cited 2024 July 11] Available at: https://urn.nsk.hr/urn:nbn:hr:168:691159

M. Vojvodić, "Analiza atmosferskih prenapona na energetskim transformatorima", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:168:691159

Metadata
TitleAnaliza atmosferskih prenapona na energetskim transformatorima
Title (english)Analysis of lightning overvoltages on power transformers
AuthorMatej Vojvodić
MentorBožidar Filipović-Grčić (mentor)
Committee memberBožidar Filipović-Grčić (predsjednik povjerenstva)
Committee memberBruno Jurišić (član povjerenstva)
Committee memberViktor Milardić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2021-07-06, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
Diplomski rad opisuje i analizira neke od ključnih utjecaja atmosferskih prenapona na tipične energetske transformatore kakvi se koriste u postrojenjima za prijenos i distribuciju električne energije. Za potrebe rada izrađen je detaljni model transformatorske stanice 220/110 kV kako bi se sam utjecaj prenapona mogao promatrati tokom pogona. Posebna je pažnja posvećena modeliranju transformatorske stanice i energetskog transformatora kao elementa od ključnog značaja. Promatrana su dva različita modela transformatora na kojima su izračunati preneseni atmosferski prenaponi u praznom hodu i u pogonu transformatora. Simulacije su se temeljile na stvarno izmjerenim prenaponima u postrojenju i time se otvorila mogućnost usporedbe dobivenih rezultata sa zabilježenim događajima u pogonu. Cilj rada bio je uvidjeti sličnosti i razlike u ponašanju visokofrekvencijskog i niskofrekvencijskog BCTRAN modela transformatora proširenog sa kapacitetima za različite valne oblike atmosferskih prenapona.
Abstract (english)
The objective of this master thesis is to describe and show some of the key factors of influence of lightning overvoltages on typical power transformers which are used transmission and distribution substations. A detailed simulation model of the substation 220/110 kV has been developed for the purpose of the thesis, in order to analyze the influence of overvoltages on transformers in operation. A special attention has been paid to the modelling of the substation and power transformer as the most important element. Two different models of power transformers have been used for calculation of transmitted overvoltages in case of unloaded transformer and while in operation. Simulations have been based on the real measured overvoltages in the substation which opened up the possibility to compare the obtained results with the recorded overvoltages at power transformer terminals while in operation. The aim of this analysis is to identify differences and similarities between high-frequency and low-frequency BCTRAN (extended with capacitances) models of power transformers with respect to different lightning overvoltage waveforms.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:691159
Study programmeTitle: Electrical Engineering and Information Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2023-01-13 16:28:01