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Title:ZAMENJAVA ZRAČNIH ODKLOPNIKOV Z VAKUUMSKIMI NA 6,3 kV NIVOJU V NUKLEARNI ELEKTRARNI KRŠKO
Authors:ID Ošlovnik, Matjaž (Author)
ID Pihler, Jože (Mentor) More about this mentor... New window
ID Voršič, Jože (Comentor)
Files:.pdf VS_Oslovnik_Matjaz_2010.pdf (2,69 MB)
MD5: DA0A0C95968A958F7CD52223F1C43C5F
PID: 20.500.12556/dkum/1670ad69-200e-4df6-9312-dc6b13a88793
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Cilj diplomske naloge je predstaviti problem in predlagati rešitev za obstoječe zračne odklopnike na srednjenapetostnem 6,3 kV nivoju v NEK, ki se jim izteka življenjska doba. V prvem delu naloge je opisana 6,3 kV lastna raba NEK, s poudarkom in izračunom kratkostičnih razmer za 6,3 kV električno postrojenje MD1 ter predstavljena problematika trenutno vgrajenih zračnih 6,3 kV odklopnikov. Nadalje sta v nalogi obravnavani dve, danes najpogostejši tehnologiji za izdelavo odklopnikov. Na srednjenapetostnem nivoju prevladujejo vakuumski odklopniki, medtem ko SF6 odklopniki predstavljajo le do 5 % vseh odklopnikov. V zadnjem delu naloge so predstavljene stikalne prenapetosti ter povzetek prenapetostne analize ob uporabi vakuumskih odklopnikov. Ob koncu je podana rešitev in predlog vrste izbire novih odklopnikov.
Keywords:zračni odklopnik, vakuumski odklopnik, SF6 odklopnik, dimenzioniranje odklopnika, nuklearna elektrarna, standardi ANSI/IEEE
Place of publishing:Maribor
Publisher:[M. Ošlovnik]
Year of publishing:2010
PID:20.500.12556/DKUM-13710 New window
UDC:621.316.5(043.2)
COBISS.SI-ID:14149142 New window
NUK URN:URN:SI:UM:DK:0QANF8TM
Publication date in DKUM:22.04.2010
Views:3042
Downloads:391
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Secondary language

Language:English
Title:REPLACMENT OF AIR CIRCUIT BREAKERS WITH VACUUM CIRCUIT BREAKERS ON 6,3 kV LEVEL IN KRŠKO NUCLEAR POWER PLANT
Abstract:The goal of this diploma work was suggesting the solutions to the problem of existing air circuit breakers owing to their expiry of service life on 6,3 kV Krško NPP level. The first part deals with 6,3 kV on-site supply emphasizing the calculation of short-circuit condition in 6,3 kV switchgear MD1 and with currently installed 6,3 kV air circuit breakers. The central part of diploma sheds light on the two most widely used manufacturing techniques of these breakers. Vacuum circuit breakers prevail among medium-voltage ones, while SF6 circuit breakers only present up to 5 % of them. The last part focuses on switching overvoltages and a summary of overvoltage analysis of the use of vacuum circuit breakers. At the end there is a solution for a new breakers.
Keywords:air circuit breaker, vacuum circuit breaker, SF6 circuit breaker, dimension of circuit breaker, nuclear power plant, ANSI/IEEE standards


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