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doctoral thesis
Metoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2005. urn:nbn:hr:168:437464
Milardić, Viktor
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Energy and Power Systems

Institutional repository: FER Repository

Cite this document

Milardić, V. (2005). Metoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:437464

Milardić, Viktor. "Metoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2005. https://urn.nsk.hr/urn:nbn:hr:168:437464

Milardić, Viktor. "Metoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2005. https://urn.nsk.hr/urn:nbn:hr:168:437464

Milardić, V. (2005). 'Metoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 18 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:437464

Milardić V. Metoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2005 [cited 2024 December 18] Available at: https://urn.nsk.hr/urn:nbn:hr:168:437464

V. Milardić, "Metoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima", Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2005. Available at: https://urn.nsk.hr/urn:nbn:hr:168:437464

Metadata
TitleMetoda izbora uređaja prenaponske zaštite u niskonaponskim sustavima
Title (english)Method of Surge Protective Devices Selection in Low-Voltage Systems
AuthorViktor Milardić
MentorIvo Uglešić (mentor)
Committee memberSejid Tešnjak (član povjerenstva)
Committee memberIvo Uglešić (član povjerenstva)
Committee memberMaks Babuder (član povjerenstva)
strani drzavljanin: Nije dostupno
Committee memberZdravko Hebel (član povjerenstva)
Committee memberAnte Marušić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Energy and Power Systems)
Zagreb
Defense date and country2005-11-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
U disertaciji su najprije objašnjeni osnovni pojmovi te stanje prenaponske zaštite na niskom naponu i cilj rada. Zatim je objašnjeno nastajanje i djelovanje prenapona, gromobranska zaštita, uređaji prenaponske zaštite te prenaponska zaštita prema IEC normama. Parametri struje munje za različite klase gromobranske zaštite su implicirali uvođenje valnog oblika za ispitivanje uređaja prenaponske zaštite. Modeli za simulaciju energetskog opterećenja uređaja prenaponske zaštite detaljno su izloženi u trećem poglavlju. Karakteristike pojedinih elemenata modela su određene laboratorijskim ispitivanjima. Proveden je izbor parametara struje munje uzimajući u obzir vjerojatnost pojave struje određene amplitude i vremena trajanja. Detaljno su prikazani rezultati simulacija energetskog opterećenja uređaja prenaponske zaštite u NN mreži. Provedena je i analiza osjetljivosti modela na ulazne parametre. Simulacijama je pokazano da inducirani prenaponi ne mogu značajno energetski opteretiti uređaje prenaponske zaštite. Zaštitna udaljenost uređaja prenaponske zaštite je istraživana na posebnom modelu. Zaključak disertacije ističe, uvođenjem prihvatljivog rizika energetskog preopterećenja uređaja prenaponske zaštite može se riješiti nesuglasje oko valnog oblika za ispitivanja. Disertacija sadrži i popis literature zatim popis skraćenica, oznaka, slika i tablica, zatim četiri priloga, sažetak na hrvatskom i engleskom jeziku te životopis na hrvatskom i engleskom jeziku.
Abstract (english)
In dissertation, capital technical data are first explained, as well as the state of low-voltage surge protection and aim of dissertation. Afterwards are explained the origin and surge effect, lightning protection system, surge protective devices and surge protection according to IEC standards. The lightning current parameters for the different classes of lightning protection are implicated introduction of current wave shape for SPD testing. Models for simulation of SPD energy absorption are laid out in-depth in the third paragraph. Characteristics of single model elements are estimated by laboratory testing. Choices of lightning current parameters are performed, taking in account probability of lightning current amplitude and duration of lightning wave. The results of simulation of SPDs energy absorption in low-voltage line are shown in-depth. Sensitivity of model on calculation parameters is also analyzed. Simulation of induced overvoltages are shown, induced overvoltages cannot load SPDs with high energy. Protective distance of SPD is researched on special model. Conclusion of dissertation is pointed out; introduction of acceptable risk of SPD energy overloading can be solution for discrepancy about current wave shape for SPD testing. Dissertation includes also list of references, list of abbreviations and marks, list of pictures and tables, four supplements, summary and biography in Croatian and English.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:437464
Study programmeTitle: Doctoral study programme "Electrical Engineering and Computing"
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, po-dručje tehničkih znanosti (doktor/doktorica znanosti, po-dručje tehničkih znanosti)
Type of resourceText
File originBorn digital
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Created on2019-07-05 08:38:11