Výsledky vyhledávání - "Valentina Vasovic"

Akademický článek

Cellulose Degradation and Transformer Fault Detection by the Application of Integrated Analyses of Gases and Low Molecular Weight Alcohols Dissolved in Mineral Oil

Autor: Draginja Mihajlovic, Vladimir Ivancevic, Valentina Vasovic, Jelena Lukic

Publikováno v: Energies, Vol 15, Iss 15, p 5669 (2022)

This article presents a method for quantification of methanol and ethanol integrated in the same gas-chromatographic run with a quantification of gases dissolved in mineral oil, making it an integrated tool in transformer diagnostics. The results of

Externí odkaz: https://doaj.org/article/2201dbb53ab24b308343064499a5b1c2

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Development of New Accelerated Aging Test for Comparison of the Quality of Different Insulating Papers Based on Cellulose

Autor: Lukic, Draginja Mihajlovic, Valentina Vasovic, Jelena

Publikováno v: Polymers; Volume 15; Issue 11; Pages: 2556

The aim of this study is to propose a test method for the determination of the quality of transformer paper insulation. For this purpose, the oil/cellulose insulation systems were exposed to various accelerated aging tests. The results of the aging e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=multidiscipl::01d5d927e28f73dc600700501b25a239

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Application of patented technology for solving the problem of PCB contamination and corrosive sulfur in power transformers

Autor: Jelena Janković, Neda Kovačević, Jelena Lukic, Draginja Mihajlovic, Valentina Vasovic

Publikováno v: Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", Vol 28, Iss 28, Pp 41-50 (2018)
Zbornik radova, Elektrotehnički institut "Nikola Tesla" (2018) 28(28):41-50

The exploitation of PCB contaminated power transformers and those which contain corrosive sulphur is related to the greatest risks to the environment, due to possible environmental accidents and faults and failures of transformers. The equipment cont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c8c0fa4819ea66ed62106ea00c19ae4
https://scindeks-clanci.ceon.rs/data/pdf/0350-8528/2018/0350-85281828041J.pdf

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Aging of transformer insulation of experimental transformers and laboratory models with different moisture contents: Part II — moisture distribution and aging kinetics

Autor: Jelena Lukic, Branko Pejovic, Draginja Mihajlovic, Zoran Radakovic, Uros Radoman, Milovan Milovanovic, Valentina Vasovic

Part II of the paper presents the results of the experimental data processing presented in Part I dedicated to distribution of water content in the standard Kraft paper along the height of HV windings during aging of experimental transformers and com

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::551fef39b094f425b43f17fd68fd16d9
https://zenodo.org/record/6373363

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Evaluation of paper insulation of power transformers based on the content of 2-furfural in mineral oil corrected to a reference temperature of 20ºc

Autor: Valentina Vasovic, Jelena Janković, Draginja Mihajlovic, Jelena Lukic

Publikováno v: Zbornik radova, Elektrotehnički institut "Nikola Tesla" (2019) 29(29):45-56
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", Vol 29, Iss 29, Pp 45-56 (2019)

The reliability of power transformers operation largely depends on the insulation system condition, especially on the condition of paper insulation. Determining the condition of paper insulation of transformers in use cannot be made by direct measure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67e63c5714f64dcfb56a193f45de2555
http://scindeks.ceon.rs/article.aspx?artid=0350-85281929045V

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