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undergraduate thesis
Proračun uzdužne impedancije 400 kV dalekovoda
2022. urn:nbn:hr:200:806172
Đuzel, Zlatko
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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Đuzel, Z. (2022). Proračun uzdužne impedancije 400 kV dalekovoda (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:200:806172

Đuzel, Zlatko. "Proračun uzdužne impedancije 400 kV dalekovoda." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2022. https://urn.nsk.hr/urn:nbn:hr:200:806172

Đuzel, Zlatko. "Proračun uzdužne impedancije 400 kV dalekovoda." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2022. https://urn.nsk.hr/urn:nbn:hr:200:806172

Đuzel, Z. (2022). 'Proračun uzdužne impedancije 400 kV dalekovoda', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 20 April 2024, https://urn.nsk.hr/urn:nbn:hr:200:806172

Đuzel Z. Proračun uzdužne impedancije 400 kV dalekovoda [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2022 [cited 2024 April 20] Available at: https://urn.nsk.hr/urn:nbn:hr:200:806172

Z. Đuzel, "Proračun uzdužne impedancije 400 kV dalekovoda", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:200:806172

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Metadata
TitleProračun uzdužne impedancije 400 kV dalekovoda
Title (english)Impedance calculation of 400 kV transmission line
AuthorZlatko Đuzel
MentorKrešimir Fekete (mentor)
Committee memberKrešimir Fekete (predsjednik povjerenstva)
Committee memberGoran Knežević (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 country2022-09-11, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
U ovom radu opisan je postupak određivanja uzdužne impedancije 400 kV dalekovoda. Navedeni su i pojašnjeni parametri uzdužne impedancije, a to su jedinični djelatni otpor i jedinični induktivitet, te su ujedno prikazani stupovi koji se uobičajeno koriste u elektroenergetskoj mreži. Dani su detaljno opisani koraci proračuna kroz koji se prolazi prilikom određivanja uzdužne impedancije. Proveden je proračun na pet različitih primjera dalekovoda iste naponske razine te istog tipa Y-stupa. Prvi primjer je uzet kao referentni, dok su druga dva primjera mijenjali razmak između zaštitnih užadi i faznih vodiča, a u posljednja dva primjera promijenjeni su presjeci faznih vodiča. Uspoređeni su dobiveni rezultati te su utvrđene promjene koje se događaju u iznosu impedancije za direktni, inverzni i nulti slijed. Također je pri usporedbi rezultata pokazano da pri promijeni presjeka vodiča znatnije se mijenja djelatni otpor, dok induktivna reaktancija ostaje približno ista. U slučaju promijene razmaka je zaključeno da se induktivna reaktancija znatnije mijenja, a djelatni otpor ostaje približno jednak.
Abstract (english)
This paper describes the procedure for determining the longitudinal impedance of a 400 kV transmission line. Longitudinal impedance parameters, which are unit of active resistance and unit of inductance, are listed and explained, as well as the pylons that are commonly used in the power grid. The steps of the calculation, which are necessary for determining the longitudinal impedance, are described in detail. The calculation was carried out on five different examples of transmission lines of the same voltage level and the same type of Y-pylon. The first example was taken as a reference, while in the second two examples the distance between the protective ropes and the phase conductors is changed, and in the last two examples, the cross-section of the phase conductors were changed. The obtained results were compared and the changes occurring in the result of impedance for positive, negative and zero sequence were determined. Also, when comparing the results, it is shown that when the cross-section of the conductor is changed, the effective resistance changes significantly, while the inductive reactance remains approximately the same. In the case of a change in distance, it is concluded that the inductive reactance changes significantly, while the active resistance remains approximately the same.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:806172
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 i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2022-10-13 10:57:12