20.500.12556/DKUM-47435 VPLIV ELEKTRIČNEGA OMREŽJA NA DELOVANJE PRENAPETOSTNE ZAŠČITE INFLUENCE OF ELECTRICAL NETWORK TO OVERVOLTAGE PROTECTION OPERATION V magistrskem delu je opisan postopek izbire in delovanje notranje ter zunanje prenapetostne zaščite. Podrobno je predstavljen izvor strele in ostalih prenapetosti, ki se pojavljajo v okolici ali v samih objektih. Cilj magistrske naloge je, s pomočjo simulacij v programskem paketu Matlab/Simulink, ugotoviti vpliv parametrov kabla v električnih inštalacijah, na delovanje prenapetostne zaščite. Simulacije so se izvajale za realen primer, na razdalji od transformatorske postaje do porabnika. Simulacije so bile opravljene za primere brez prenapetostne zaščite, za primere z eno vrsto prenapetostne zaščite (plinski odvodnik oz. metal-oksidni varistor) in za primer uporabe obeh prenapetostnih zaščit. This master's thesis presents the process of selection as well as functioning of internal and external overvoltage protection. The origin of lightning and other forms of overvoltage, which are emerging in surrounding areas or within facilities themselves, are presented in detail. The purpose of this master's thesis is, with the help of simulations in programme package Matlab/Simulink, to find out the influence of cable parameters in electrical installations on the functioning of overvoltage protection. Simulations have been conducted for a real example, at a distance from the transformer station to the user. Simulations have been carried out for examples without overvoltage protection, for examples with only one kind of overvoltage protection (gas arrester or metal-oxide varistor) as well as for examples with the use of both overvoltage protections. prenapetostna zaščita dolžina vodnikov prenapetosti overvoltage protection conductor length overvoltage true true false [A. Kolbl] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2015-02-20 07:20:17 2015-05-22 17:35:04 2022-05-20 03:08:51 2021-05-06 03:34:28 2015 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.311.1:621.316.91(043.2) 18775318 URN:SI:UM:DK:5XLZKHED MAG_Kolbl_Ales_2015.pdf MAG_Kolbl_Ales_2015.pdf 1 4845B483637EC7FA68831A2FA3ABEE38 2254e5f88731ebad51052ad61a51815d84838dc6a52997e7130cfcc8395db7e8 96383392-7c0b-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=70678 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0