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2019, vol. 74, br. 5, str. 687-693
Metodologija za određivanje vremena zamene prekidača na bazi pouzdanosti i integrisanog faktora rizika
aODS EPS Distribucija Beograd, Ogranak ED Zaječar, Zaječar
bUniverzitet u Nišu, Elektronski fakultet

e-adresadragan985@gmail.com
Ključne reči: prekidač; pouzdanost; padovi napona; preostali životni vek; Vajbulova raspodela
Sažetak
U ovom radu biće predstavljena nova metodologija za procenu vremena zamene prekidača u transformatorskoj stanici (TS). Metoda se zasniva na statističkoj analizi prikupljenih podataka iz eksploatacije prekidača, kao i uticaja zamene prekidača na pouzdanost TS. Predstavljen je i ekonomski uticaj zamene pojedinih prekidača na pouzdanost postrojenja kao i troškovi takve akcije. Prikupljeni podaci obuhvataju 427 malouljna 35kV i 10kV prekidača, posmatranih u periodu od 10 godina. Analiza podataka je izvršena uz pomoć Vajbulove raspodele (Weibull probability distribution) padova napona na kontaktima prekidača nadzemnih i kablovskih izvoda 10kV i 35kV. Pouzdanost postrojenja je određena metodama minimalnih puteva i minimalnih preseka. Na taj način sagledan je uticaj stanja srednjenaponskih prekidača na pouzdanost čitavog postrojenja. Primer metode je demonstriran na jednoj TS 35/10kV. Pouzdanost postrojenja je analizirana kroz 5 scenarija zamene prekidača sa njihovim pratećim troškovima. Za analiziranu TS rezultati su pokazali najisplativiju varijantu pri zameni prekidača na trafo poljima.
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O članku

jezik rada: srpski
vrsta rada: stručni članak
DOI: 10.5937/tehnika1905687S
objavljen u SCIndeksu: 09.11.2019.
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