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undergraduate thesis
Modeliranje luka u visokonaponskim prekidačima
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2016. urn:nbn:hr:168:737626
Šepetanc, Karlo
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Šepetanc, K. (2016). Modeliranje luka u visokonaponskim prekidačima (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:737626

Šepetanc, Karlo. "Modeliranje luka u visokonaponskim prekidačima." Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2016. https://urn.nsk.hr/urn:nbn:hr:168:737626

Šepetanc, Karlo. "Modeliranje luka u visokonaponskim prekidačima." Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2016. https://urn.nsk.hr/urn:nbn:hr:168:737626

Šepetanc, K. (2016). 'Modeliranje luka u visokonaponskim prekidačima', Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 22 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:737626

Šepetanc K. Modeliranje luka u visokonaponskim prekidačima [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2016 [cited 2024 December 22] Available at: https://urn.nsk.hr/urn:nbn:hr:168:737626

K. Šepetanc, "Modeliranje luka u visokonaponskim prekidačima", Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:168:737626

Metadata
TitleModeliranje luka u visokonaponskim prekidačima
Title (english)Modelling of Arc in High Voltage Circuit Breakers
AuthorKarlo Šepetanc
MentorŽeljko Štih (mentor)
Committee memberŽeljko Štih (predsjednik povjerenstva)
Committee memberSead Berberović (član povjerenstva)
Committee memberBojan Trkulja (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2016-07-12, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
Projektiranje visokonaponskih prekidača najčešće podrazumijeva dvije obaveze: prikaz utjecaja prekidača na elektroenergetski sustav i određivanje geometrije komore za gašenje električnog luka. U ovom radu su detaljno razrađene metode simulacije prekidača u strujnom krugu i obrađeni su elementarni fizikalni procesi električnog luka u plinovima i vakuumu. Modeli crnih kutija za simulaciju su opisani diferencijalnim jednadžbama. Navedene su pretpostavke uz koje su razni autori modificirali opću jednadžbu i dan je pregled modela i njihov opseg. Naglasak je stavljen na klasične Cassie i Mayr modele i na hibridni Habedank model. U programu Simulink je numerički izračunata teorijska strujna i naponska karakteristika. Iz dobivenih grafova su analizirani karakteristični naponski predjeli kao što su: napon luka u periodu velike struje, nagli porast napona neposredno prije gašenja luka i prijelazni napon oporavka. Proveden je postupak određivanja parametara Cassie, Mayr i Habedank modela iz numeričke obrade mjernih podataka uz pomoć matematičkog programskog alata „Wolfram Mathemtica“.
Abstract (english)
Designing high-voltage switches usually implies the following tasks: understanding how switches affect electromagnetic systems and determining the geometry of the chamber used for extinguishing the electric arc. In this thesis I will cover methods for simulating switches in electric circuits and elementary physical laws of electric arcs in gasses and in vacuum. The black box models used in simulations are derived with differential equations. The assumptions which further modify the general equation are presented as well as the scope of different models and their range. Further emphasis has been put on the classic Cassie, Mayr and hybrid Habedank models. The theoretical current and voltage characteristic has been numerically calculated using Simulink. Certain parts of graphs obtained from the results of these simulations such as the voltage during the time periods of high currents, severe voltage spikes just before extinguishing the electric arc and transient recovery voltage were subject to further analysis. The method used for determining parameters of Cassie, Mayr and Habedank models was carried out using the numerical processing of measured data with the use of Wolfram Mathematica program.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:737626
Study programmeTitle: Electrical Engineering and Information Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
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Created on2018-02-06 12:15:42