prikaz prve stranice dokumenta Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima
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scientific master's theses
Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2010. urn:nbn:hr:168:880937
Babić, Boris
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Energy and Power Systems

Institutional repository: FER Repository

Cite this document

Babić, B. (2010). Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:880937

Babić, Boris. "Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2010. https://urn.nsk.hr/urn:nbn:hr:168:880937

Babić, Boris. "Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2010. https://urn.nsk.hr/urn:nbn:hr:168:880937

Babić, B. (2010). 'Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:880937

Babić B. Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2010 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:168:880937

B. Babić, "Atmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima", Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2010. Available at: https://urn.nsk.hr/urn:nbn:hr:168:880937

Metadata
TitleAtmosferski prenaponi na srednjenaponskim vodovima s izoliranim vodičima i nadzemnim kabelskim vodovima
Title (english)Lightning Overvoltages on Medium Voltage Lines with Covered Conductors and Overhead Cables
AuthorBoris Babić
MentorIvo Uglešić (mentor)
Committee memberZdravko Hebel (predsjednik povjerenstva)
Committee memberIvo Uglešić (član povjerenstva)
Committee memberSrđan Žutobradić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Energy and Power Systems)
Zagreb
Defense date and country2010-12-09, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
Prenaponske pojave atmosferskog porijekla predstavljaju značajan izvor kvarova na nadzemnim vodovima. U ovom radu analizirani su atmosferski prenaponi na nadzemnim srednjenaponskim vodovima s izoliranim vodičima i nadzemnim srednjenaponskim kabelskim vodovima. Te dvije tehnologije predstavljaju alternativu klasičnim nadzemnim vodovima s golim vodičima. Iako se SN vodovi s izoliranim vodičima u svijetu koriste više desetljeća, u našim razdjelnim mrežama su još uvijek slabo rasprostranjeni. Nadzemni SN kabelski vodovi i u svjetskim okvirima predstavljaju novost i o iskustvima s njihovom uporabom ima vrlo malo podataka. U radu su načinjene analize prenapona izazvanih direktnim udarom munje kao i induciranih prenapona izazvanih udarom munje u blizini nadzemnog voda. Za izračune je korišten program ATP-EMTP. Iako inducirani prenaponi imaju znatno manje iznose od prenapona koji nastaju direktnim udarom munje, oni još uvijek mogu biti dovoljno visoki da izazovu kvarove na srednjenaponskim vodovima. Njihovo računanje je posebno složen problem. Za tu svrhu je u radu upotrijebljen model autora H. K. Høidalena. Taj model za izračun induciranih prenapona koristi tzv. Agrawalov model elektromagnetske sprege. Proračuni su provedeni za odabrane slučajeve vodova s različitim primijenjenim mjerama zaštite od prenapona. Dobiveni rezultati pokazuju utjecaj zaštitnih mjera na iznose atmosferskih prenapona te omogućuju usporedbu učinkovitosti različitih načina prenaponske zaštite.
Abstract (english)
Overvoltages of atmospheric origin represent a significant cause of faults on overhead lines. In this thesis lightning overvoltages on medium-voltage overhead lines with covered conductors and on overhead medium-voltage cables are analysed. These two technologies represent an alternative to standard overhead lines with bare conductors. Although MV lines with covered conductors have been used throughout the world for several decades, their application in Croatian distribution networks is still limited. Overhead MV cables represent a new solution for overhead networks and there is still very little data on experiences with their application. Overvoltages caused by direct lightning strikes as well as induced overvoltages created by lightning strikes in the vicinity of overhead line are analysed in this thesis. ATP-EMTP program was used for overvoltage calculations. Although induced overvoltages have much smaller values than overvoltages caused by direct lightning strikes, they can still be high enough to create faults on MV lines. Calculation of induced overvoltages represents a very complex task. Model created by H. K. Høidalen was used in this work for that purpose. Model calculates induced overvoltages using the so-called Agrawal electromagnetic coupling model. Calculations were performed for selected cases of lines with applied different measures for protection against overvoltages. Obtained results show influence of protective measures on lightning overvoltages and allow comparison of efficiency of different means of overvoltage protection.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:880937
Study programmeTitle: Postgraduate master programme in electrical engineering
Study programme type: university
Study level: postgraduate
Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
Catalog URLhttp://lib.fer.hr/cgi-bin/koha/opac-detail.pl?biblionumber=34326
Type of resourceText
Extent93 str.
File originBorn digital
Access conditionsClosed access
Terms of useLicence In copyright icon
Created on2019-03-25 12:42:36