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undergraduate thesis
Izbor strujnih mjernih transformatora za potrebe relejne zaštite
2020. urn:nbn:hr:190:967601
Jardas, Leo
University of Rijeka
Faculty of Engineering
Department of Electric Power Systems
Section of Electric Facilities and Power Systems

Cite this document

Jardas, L. (2020). Izbor strujnih mjernih transformatora za potrebe relejne zaštite (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:967601

Jardas, Leo. "Izbor strujnih mjernih transformatora za potrebe relejne zaštite." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:967601

Jardas, Leo. "Izbor strujnih mjernih transformatora za potrebe relejne zaštite." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:967601

Jardas, L. (2020). 'Izbor strujnih mjernih transformatora za potrebe relejne zaštite', Undergraduate thesis, University of Rijeka, Faculty of Engineering, accessed 01 February 2025, https://urn.nsk.hr/urn:nbn:hr:190:967601

Jardas L. Izbor strujnih mjernih transformatora za potrebe relejne zaštite [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2020 [cited 2025 February 01] Available at: https://urn.nsk.hr/urn:nbn:hr:190:967601

L. Jardas, "Izbor strujnih mjernih transformatora za potrebe relejne zaštite", Undergraduate thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:190:967601

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Metadata
TitleIzbor strujnih mjernih transformatora za potrebe relejne zaštite
Title (english)Selection of current transformers for protective relays
AuthorLeo Jardas
MentorMarijana Živić Đurović (mentor)
Committee memberBranka Dobraš (predsjednik povjerenstva)
Committee memberMarijana Živić Đurović (član povjerenstva)
Committee memberRene Prenc (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Electric Power Systems)
(Section of Electric Facilities and Power Systems)
Rijeka
Defense date and country2020-01-23, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
U ovome radu obrađena je tema strujnih mjernih transformatora, njihova primjena i podjela. Obrazložen je princip rada transformatora, izvedbe transformatora. Obrađeni su svi parametri koje susrećemo kod strujnog mjernog transformatora. Svaki strujni mjerni transformator se definira strujnom i kutnom pogreškom te klasom točnosti. Obrađen je izbor strujnih mjernih transformatora za potrebe zaštite energetskog transformatora diferencijalnom i nadstrujnom zaštitom. Kroz primjere je prikazano kako se provjerava da li je zaštita dobro postavljena. Prilikom odabira strujnog mjernog transformatora treba obratiti pažnju o nazivnim strujama primarne opreme te traženoj točnosti. U slučaju da odabrani strujni mjerni transformator ne zadovoljava potrebe određene zaštite potrebno je povećati snagu strujnog mjernog transformatora ili povećati granični faktor točnosti.
Abstract (english)
In this thesis, current transformers are elaborated, as well as their use and their division. The work patern and types of transformers were explained. All parameters that are used by the current transformer are elaborated. Every current transformer is defined by current, phase displacement and accuracy class. The selection of current transformers, for the use as protection for energy transformers with diferential and overcurrent protection is also described. Examples were used to show how to check if the protection is correctly set. During the selection of current transformers, attention should be given to the primary equipments rated current and the required precision. Should a current transformer not satisfy the requirements of a certain protection, power of the current transformer or the accuracy limit factor must be in creased.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:967601
Study programmeTitle: Undergraduate Vocational Study of Electrical Engineering
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike (stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2020-08-27 13:00:16