20.500.12556/RUL-173769 Zamenjava elektroenergetske opreme v transformatorski postaji Replacement of electrical power equipment in the transformer substation Cilj diplomske naloge je bil izdelati projekt rekonstrukcije transformatorske postaje, v katerem je predvidena zamenjava celotne obstoječe opreme z novo, sodobnejšo in energetsko učinkovitejšo. Predstavljeni so razlogi za menjavo transformatorja in pripadajočih stikalnih blokov, prav tako pa tudi ključni dejavniki, ki jih je treba upoštevati pri projektiranju tovrstnih objektov. Transformatorska postaja je sestavljena iz treh glavnih delov: srednjenapetostnega (SN) stikalnega bloka, nizkonapetostnega (NN) stikalnega bloka in transformatorja. Naloga opisuje značilnosti obstoječega stanja in podaja zasnovo nove rešitve, ki vključuje izbiro primerne opreme, zaščitnih naprav ter kabelskih povezav. Poseben poudarek je namenjen zaščiti transformatorja, izračunom dimenzioniranja opreme ter ekonomski in okoljski presoji investicije. Rezultati naloge potrjujejo, da sodobna oprema zagotavlja večjo zanesljivost, varnost in učinkovitost delovanja distribucijskega omrežja. Prenova prinaša tudi pomembne okoljske koristi, saj se uporabljajo tehnologije brez SF₆ plina, okolju prijazni izolacijski mediji in transformator z nižjimi izgubami. The goal of this diploma thesis was to prepare a project for the reconstruction of a transformer substation, in which the replacement of the existing equipment with modern, more reliable, and energy-efficient components is foreseen. The reasons for replacing the transformer and associated switchgear are presented, as well as the key aspects that need to be considered when designing such facilities. The transformer substation consists of three main parts: a medium-voltage (MV) switchgear, a low-voltage (LV) switchgear, and the transformer itself. The thesis describes the characteristics of the existing condition and outlines the design of the new solution, which includes the selection of suitable equipment, protective devices, and cable connections. Special attention is given to transformer protection, equipment dimensioning, and the economic and environmental evaluation of the investment. The results confirm that modern equipment ensures greater reliability, safety, and efficiency in the operation of the distribution network. The reconstruction also brings important environmental benefits, such as the elimination of SF₆ gas technology, the use of environmentally friendly insulating media, and a transformer with reduced energy losses. transformatorska postaja transformator SN stikalni blok NN stikalni blok okoljski vidiki transformer substation transformer MV switchgear LV switchgear environmental aspects true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-22 14:15:10 2025-09-22 14:15:17 2025-11-12 03:39:46 0000-00-00 00:00:00 2025 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 63176 254331139 Gjorgjievski_Stefan_-_Zamenjava_elektroenergetske_opreme_v_transformatorski_postaji.pdf Gjorgjievski_Stefan_-_Zamenjava_elektroenergetske_opreme_v_transformatorski_postaji.pdf 1 6C62C928D64733A5198D9C559BB17930 cd7527bd36d87f891e26f88919914857e7cf7e0e92a89bce3dfb8a14cc6e251e a2deba81-97ad-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=218422 Fakulteta za elektrotehniko 0 0 0