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master's thesis
Energetski učinkoviti transformatori s amorfnom jezgrom
2017. urn:nbn:hr:200:227074
Prhal, Deni
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

Cite this document

Prhal, D. (2017). Energetski učinkoviti transformatori s amorfnom jezgrom (Master's 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:200:227074

Prhal, Deni. "Energetski učinkoviti transformatori s amorfnom jezgrom." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:200:227074

Prhal, Deni. "Energetski učinkoviti transformatori s amorfnom jezgrom." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2017. https://urn.nsk.hr/urn:nbn:hr:200:227074

Prhal, D. (2017). 'Energetski učinkoviti transformatori s amorfnom jezgrom', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 22 January 2025, https://urn.nsk.hr/urn:nbn:hr:200:227074

Prhal D. Energetski učinkoviti transformatori s amorfnom jezgrom [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2017 [cited 2025 January 22] Available at: https://urn.nsk.hr/urn:nbn:hr:200:227074

D. Prhal, "Energetski učinkoviti transformatori s amorfnom jezgrom", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:200:227074

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Metadata
TitleEnergetski učinkoviti transformatori s amorfnom jezgrom
Title (english)Energy efficient transformers with amorphous core
AuthorDeni Prhal
MentorGoran Knežević (mentor)
Committee memberGoran Knežević (predsjednik povjerenstva)
Committee memberKrešimir Fekete (član povjerenstva)
Committee memberDanijel Topić (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 country2017-07-11, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
U ovom radu opisana je fizikalna slika rada transformatora, struja magnetiziranja koja je potrebna da bi se uzbudilo magnetsko polje u jezgri i gubici koji nastaju pri radu transformatora. Dan je pregled zakonske regulative u pogledu energetske učinkovitosti transformatora. Opisani su transformatori s jezgrom od amorfnih limova, način proizvodnje i njihove karakteristike. Amorfni transformatori postižu niže gubitke u odnosu na klasične transformatore s magnetski orijentiranim limovima, posebice u gubicima praznog hoda. Izvršena je ekonomska usporedba pomoću TOC metode kojom je utvrđeno da su ekonomski isplativi tijekom životnog vijeka unatoč veće početne cijene. Na osnovu simulacijskog modela izvoda mreže Elektre Karlovac u programskom paketu DIgSIlLENT izvršena je analiza zamjene postojećih 20/0,4 kV transformatora. Gubici u mreži smanjeni su 23,42 kW. Amorfni transformatori imaju višu početnu cijenu ali donose uštedu zbog manjih troškova gubitaka.
Abstract (english)
This paper describes physical image of transformer work, magnetising current which is needed for creating magnetic field in core and losses which occur when transformer is working. An overview of legislation about energy efficiency of transformer is provided. Amorphous alloy core transformer, mode of production and their characteristics are described. Amorphous alloy core transformers have less losses in comparison with conventional grain oriented silicon steel transformer, especially no-load losses. Economic comparison with TOC method was done and it has been found that amorphous alloy core transformers are economically viable in despite of bigger initially price. Analysis of replacement of existing 20/0,4 kV transformers with help of the simulation model of network excerpt Elektra Karlovac in software package DIgSILENT was carried out. Losses in the network are reduced by 23,42 kW. Amorphous alloy core transformers have higher inicially prices but make savings because of lower cost of losses.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:227074
Study programmeTitle: Graduate University Study Programme in Electrical Engineering; specializations in: Communications and Informatics, Power Engineering
Course: Power Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike (magistar/magistra inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-09-12 10:00:49