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undergraduate thesis
Zaštita od atmosferskih prenapona
2019. urn:nbn:hr:200:735269
Pavlica, Luka
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Power Engineering
Chair of Power Systems and Substations

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Pavlica, L. (2019). Zaštita od atmosferskih prenapona (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:735269

Pavlica, Luka. "Zaštita od atmosferskih prenapona." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2019. https://urn.nsk.hr/urn:nbn:hr:200:735269

Pavlica, Luka. "Zaštita od atmosferskih prenapona." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2019. https://urn.nsk.hr/urn:nbn:hr:200:735269

Pavlica, L. (2019). 'Zaštita od atmosferskih prenapona', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 21 February 2025, https://urn.nsk.hr/urn:nbn:hr:200:735269

Pavlica L. Zaštita od atmosferskih prenapona [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2019 [cited 2025 February 21] Available at: https://urn.nsk.hr/urn:nbn:hr:200:735269

L. Pavlica, "Zaštita od atmosferskih prenapona", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:200:735269

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Metadata
TitleZaštita od atmosferskih prenapona
Title (english)Protection against atmospheric overvoltage
AuthorLuka Pavlica
MentorGoran Knežević (mentor)
Committee memberGoran Knežević (predsjednik povjerenstva)
Committee memberZdravko Krpić (član povjerenstva)
Committee memberSrete Nikolovski (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Power Engineering)
(Chair of Power Systems and Substations)
Osijek
Defense date and country2019-10-04, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
U ovom radu predstavljena je zaštita od atmosferskih prenapona koja je teorijski objašnjena te potkrijepljena računskim primjerima. U drugom poglavlju uveden je pojam prenapona koji predstavljaju pojavu kada električni naponi između dvaju vodiča ili između vodiča i zemlje prelaze maksimalne vrijednosti nazivnih napona energetskog sustava. Razlozi prenapona mogu biti direktan ili indirektan udar groma u elektroenergetsko postrojenje ili njegovu blizinu, tada govorimo o atmosferskim prenaponima. Treće poglavlje govori o nastanku groma te o procesu njegovog širenja od oblaka prema zemlji kao i posljedice koje uzorkuje energija koju prenosi. U četvrtom poglavlju je prema tome objašnjena zaštita od atmosferskih prenapona koja je djelotvorna zaštita od energije groma. Uređaji koji se koriste za zaštitu od prenapona reagiraju prije nego što prenapon ošteti odnosno probije izolaciju električnih uređaja, tako što se pomoću hvataljke prihvaća struja groma te se ta struja odvodnicima preko sustava uzemljenja odvodi u zemlju kako bi se izjednačio potencijal te tako spriječio proboj i onemogućio oštećenje ili kvar unutar elektroenergetskog sustava. To sve zajedno čini gromobransku instalaciju koja se smatra najučinkovitijom zaštitom od udara groma. Nakon svakog udara groma u gromobransku instalaciju treba provjeriti ispravnost i učinkovitost gromobranske instalacije te u slučaju oštećenja provesti popravak.
Abstract (english)
This paper presents protection from atmospheric overvoltage which is theoretically explained and substantiated by computation examples. The second chapter introduced the notion of overvoltage which represents the phenomenon when the electrical voltages between the two conductors or between conductors and the ground exceed the maximum values of the nominal voltage of the energy system. The reasons for surge can be a direct or indirect lightning strike in an electrical power plant or its proximity, then we are talking about atmospheric surge. The third chapter discusses the emergence of thunder and the process of spreading it from the clouds to the earth as well as the consequences of the energy it transmits. The fourth chapter thus explains the protection from atmospheric surge, which is an effective protection against the energy of thunderbolt. The devices used for overvoltage protection react before overcharging damages or breaches of electrical appliances, by using the lightning rod, to accept the lightning current and to drain the current through the grounding system to the ground to prevent the breach and damage or malfunction within the power system. This all together makes a lightning protection system that is considered the most effective protection against lightning strikes. After each lightning bolt in the lightning installation, it should be checked for the correctness and efficiency of the lightning rod installation and in case of damage repair it.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:735269
Study programmeTitle: Undergraduate University Study Programme
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-11-28 15:43:21