20.500.12556/DKUM-10366 ANALIZA ELEKTRIČNIH IN MAGNETNIH RAZMER VAKUUMSKEGA ODKLOPNIKA ANALYSIS OF ELECTRICAL AND MAGNETIC CONDITIONS OF A VACUUM CIRCUIT BREAKER V diplomskem delu je obravnavan vakuumski odklopnik, ki se zaradi ugodnih značilnosti in okolju prijazne tehnologije vgrajujejo v srednjenapetostne elektroenergetske objekte. Ob upoštevanju časovnega spreminjanja magnetnega polja so v programu Vector Fields - Opera, z metodo končnih elementov, analizirane elektromagnetne razmere 3D modela vakuumskega odklopnika s skodeličastimi kontakti, pri čemer je uporabljen tranzientni izračun. Za primerjavo je narejena še analiza razmer za spiralno in masivno obliko kontaktov, iz rezultatov analize pa je raziskan namen posebne oblike kontaktov vakuumskega odklopnika, ki je ključna za uspešno prekinitev električnega toka v vakuumu. This diploma thesis discusses the vacuum circuit breaker, which, due to its advantageous characteristics and environment-friendly technology, is installed into medium voltage power systems. While considering the time-varying of the electromagnetic field, electromagnetic conditions of a 3D model of a vacuum circuit breaker with contrate-cup shaped contacts are analysed. Therefor the software Vector Fields - Opera and his transient analysis is used in which solutions are obtained by the Finite Element Method. For the sake of comparison, an additional analysis of conditions for spiral as well as disc-shaped contacts was made. From the received results of the analysis, the purpose of the vacuum circuit breaker contacts' shape, which is crucial for a successful electric current interruption in vacuum, has been explored. Vakuumski odklopnik električni kontakti električni oblok numerična analiza metoda končnih elementov. Vacuum circuit breakers electric contacts electrical arc numerical analysis finite element method. true true false [U. Žitnik] Slovenski jezik Angleški jezik Diplomsko delo 2009-05-07 19:09:57 2009-06-01 12:37:09 2022-04-11 16:13:07 2022-04-16 03:23:29 2009 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.316.53(043.2) 13293846 URN:SI:UM:DK:UFKGZZCG UNI_Zitnik_Uros_2009.pdf UNI_Zitnik_Uros_2009.pdf 1 A68BA03132EE7BB291926138BE57E7FC 3d1ced5ba96c35a85fbb19063b6fcd86be3fa3b777284ee25eaa1d89fc00bf39 d00be1ec-7c02-11eb-bb7a-00155d0001ca 20.500.12556/dkum/a38cd26c-6763-40ce-aae0-2f8af686de95 https://dk.um.si/Dokument.php?lang=slv&id=8471 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0