o:1839 Određivanje preostalog životnog veka i strategije zamene malouljnih prekidača na osnovu dinamičke analize rizika: doktorske disertacije Determination of remaining useful life and replacement strategies of minimum oil circuit breakers according to dynamic risk analysis : doctoral dissertation sr The main goal of this dissertation is to estimate the remaining usefullife of minimum oil circuit breakers (CB) based on data collectedduring their regular inspection.Using the proposed approach, CB’s with the highest risk can beidentified, whose failure can cause the greatest economicconsequences, but also consequences for the stability of the powersystem. By determining the reliability and risk of minimum oil CB’s,it is possible to see what influence has the place of installation on theaging process. In this way, a correlation is established between thevalues of voltage drops and other categories such as: feeder type,voltage level, year of production, number of disconnected short-circuitcurrents.The end result of the CB’s analysis is the possibility of knowing itsaging process, classification of the state of all CB’s based on the riskof failure, knowledge of the impact of CB’s replacement on theavailability of the power station, without additional investment in newequipment or labor. Biografija: llist 194,Bibliografija: listovi 133-141. Datum odbrane: 05. 07. 2022. Electrical and computer engineering 91552100 74738697 91552101 8564 2023-01-24T10:55:56.053Z 45 no 46 Dragan A., 1985- Stevanović 27990631 2021 63 mentor Dragan S., 1961- Tasić 9959527 2021 63 predsednik komisije Aleksandar Janjić 2021 63 član komisije Lidija Korunović 2021 63 član komisije Zoran Stajić 2021 63 član komisije Dardan Klimenta 2021 194 lista 7502794 http://phaidrani.ni.ac.rs/o:1839 no yes 13 2023-01-24T10:55:56.320Z 70 otpornost kontakta, pouzdanost, prekidač, preostali životni vek, rizik circuit breaker, contact resistance, reliability, remaining useful life,risk 621.316.52-027.45:621.316.1(043.3) T 160 1738 18A03 18A0302 2021