Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/10100
Title: Optimal spares availability strategy for power transformer components
Authors: Mijailovic, Vladica
Journal: Electric Power Systems Research
Issue Date: 1-Jan-2010
Abstract: The paper suggests a method to optimize the spare amount of power transformer components. The proposed strategy is conceived to provide minimum annual cost consisting of expected failures renewal cost, capital cost for spares and load curtailment cost. The method identifies minor and major failures. Minor failures are repairable, while major failures can be repairable or unrepairable. Power transformer is a complex system, consisting of six components (functional parts). It is assumed that each component has two independent, competing failure modes: wear-out failure mode, modelled by two-parameter Weibull distribution, and a chance failure mode, characterized by an exponential distribution. The application of the method suggested and the benefits it provides are demonstrated for one transformer station (TS) 110/x kV/kV with 2×31.5MVA transformers. In addition, the influence of performing power transformer refurbishment on expected total cost has also been analyzed. © 2010 Elsevier B.V. All rights reserved.
URI: https://scidar.kg.ac.rs/handle/123456789/10100
Type: Short Survey
DOI: 10.1016/j.epsr.2010.01.002
ISSN: 03787796
SCOPUS: 81055125967
Appears in Collections:Faculty of Technical Sciences, Čačak
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