20.500.12556/DKUM-18533 TEMPERATURA VODNIKA DALJNOVODA V ODVISNOSTI OD TOKOVNE OBREMENITVE IN VPLIVA OKOLJA OVERHEAD POWER LINE CONDUCTOR TEMPERATURE DEPENDING ON CURRENT LOADING AND ENVIRONMENTAL IMPACTS V Slovenskem elektroenergetskem sistemu se za prenos električne energije v 400 kV omrežju uporablja vodnik Al/Je 490/65. Temperatura uporabljenega vodnika daljnovoda v obratovanju predstavlja enega izmed osnovnih mejnih pogojev za obratovanje daljnovoda. Dopustno segrevanje namreč ne sme preseči dovoljene vrednosti, ker vpliva na poslabšanje mehanskih lastnosti vodnika in povese. V diplomski nalogi je teoretično raziskana možnost povečanja tokovne obremenitve daljnovoda glede na spreminjanje zunanjih dejavnikov in sicer temperature okolice, vetra in sonca. Osredotočili smo se predvsem na ugotovitve CIGRE, ki so upoštevane v izračunih v programskem paketu MATLAB. In the Slovenian 400 kV power system the conductor Al/Fe 490/65 is used for the transmission of electricity. Temperature of the overhead power line conductor during operation represents one of the basic operational limitation parameters for the overhead power line. Because of the negative impact on the mechanical parameters of the conductor and conductor sagging the conductor temperature must be under prescribed limits. Apart from that, the external parameters like ambient temperature, wind and solar radiation could influenced the conductor temperature. In this work the theoretical study of the possibility in the increasing current loading of the conductor, considering aforementioned external factors, is investigated. Mainly the findings of CIGRE working group are applied in the MATLAB program. elektroenergetski sistemi daljnovod temperatura vodnika poves vodnika power systems overhead power line conductor temperature conductor sagging true true false D. Deželak Slovenski jezik Angleški jezik Diplomsko delo 2011-05-16 18:03:07 2011-05-17 09:56:49 2022-04-13 10:49:20 2023-12-24 03:11:12 2011 0 [Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.315.1(043.2) 15206422 URN:SI:UM:DK:I1RQQEGT UNI_Dezelak_Damjan_2011.pdf UNI_Dezelak_Damjan_2011.pdf 1 2C272BD587CD46D6A6347FEBBD45651F e8124ea636e7ba973e80579072b7c66960a3f5ae8b6f41f77f46c0bc2cff889f 265123f6-7c05-11eb-bb7a-00155d0001ca 20.500.12556/dkum/afdba1eb-7478-4120-8764-79cf645cd47e https://dk.um.si/Dokument.php?lang=slv&id=22071 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0