Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters

This study is devoted to the improvement of the transformer oil quality, using a new inhibiting additive, since the extensively used inhibitory additive ionol is sensitive to organosulfur compounds of sulfur oils. From the earlier works, the organosulfur compounds are known to affect ambiguously the...

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Autor principal:	Gainullina L.R.
Formato:	article
Lenguaje:	EN RO RU
Publicado:	Academy of Sciences of Moldova 2021
Materias:	dielectric strength dielectric loss individual sulfide additive oil insulation decylcyclohexyl sulfide decylphenyl sulfide. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/9cf5bdc1fb2e4387a71d8d0abbdf0723
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spelling	oai:doaj.org-article:9cf5bdc1fb2e4387a71d8d0abbdf07232021-11-26T13:50:54ZEffect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters10.52254/1857-0070.2021.4-52.031857-0070https://doaj.org/article/9cf5bdc1fb2e4387a71d8d0abbdf07232021-11-01T00:00:00Zhttps://journal.ie.asm.md/assets/files/03_04_52_2021.pdfhttps://doaj.org/toc/1857-0070This study is devoted to the improvement of the transformer oil quality, using a new inhibiting additive, since the extensively used inhibitory additive ionol is sensitive to organosulfur compounds of sulfur oils. From the earlier works, the organosulfur compounds are known to affect ambiguously the transformer oils characteristics. Therefore, it was of interest to study the individual sulfides as the inhibitory additives. The goal was achieved by the researches with the use of the model mixtures consisting of the selectively purified transformer oil (free from ionol) along with the individual sulfides, decylcyclohexylsulfide and decylfenylsulfide, at concentration of 0.5 %, Their effect on stability against oxidation of the selectively purified oil, on its electric strength and tangent of the dielectric losses’ angle was studied. The primary results obtained were, firstly, the rate slowing down of water formation in oil and of water-soluble acids formation in oil upon its oxidation in the presence of the individual sulfides, and, secondly, an increase in the electric strength and decrease in the dielectric losses compared to the transformer oil, containing ionol. It was established that decylcyclohexylsulfide inhibitory properties are stronger compared to those of decylfenylsulfide, which was testified by less quantities (by 1.8 times) of the water formed and of water-soluble acids (by 2.22 times). The introduction to oil of 0.5 % decylcyclohexylsulfide and decylfenylsulfide increased the oil electric strength, correspondingly, by 2.6 and by 5.5 times, upon water concentration in oil equal to 15·10-2 g/kg. The significance of the results obtained is in improving the transformer oil quality produced from the sulfur oils with the use of a novel additive. Gainullina L.R.Academy of Sciences of Moldovaarticledielectric strengthdielectric lossindividual sulfideadditiveoil insulationdecylcyclohexyl sulfidedecylphenyl sulfide.Electrical engineering. Electronics. Nuclear engineeringTK1-9971Production of electric energy or power. Powerplants. Central stationsTK1001-1841Renewable energy sourcesTJ807-830ENRORUProblems of the Regional Energetics, Vol 4(52), Iss 4, Pp 23-30 (2021)
institution	DOAJ
collection	DOAJ
language	EN RO RU
topic	dielectric strength dielectric loss individual sulfide additive oil insulation decylcyclohexyl sulfide decylphenyl sulfide. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830
spellingShingle	dielectric strength dielectric loss individual sulfide additive oil insulation decylcyclohexyl sulfide decylphenyl sulfide. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830 Gainullina L.R. Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters
description	This study is devoted to the improvement of the transformer oil quality, using a new inhibiting additive, since the extensively used inhibitory additive ionol is sensitive to organosulfur compounds of sulfur oils. From the earlier works, the organosulfur compounds are known to affect ambiguously the transformer oils characteristics. Therefore, it was of interest to study the individual sulfides as the inhibitory additives. The goal was achieved by the researches with the use of the model mixtures consisting of the selectively purified transformer oil (free from ionol) along with the individual sulfides, decylcyclohexylsulfide and decylfenylsulfide, at concentration of 0.5 %, Their effect on stability against oxidation of the selectively purified oil, on its electric strength and tangent of the dielectric losses’ angle was studied. The primary results obtained were, firstly, the rate slowing down of water formation in oil and of water-soluble acids formation in oil upon its oxidation in the presence of the individual sulfides, and, secondly, an increase in the electric strength and decrease in the dielectric losses compared to the transformer oil, containing ionol. It was established that decylcyclohexylsulfide inhibitory properties are stronger compared to those of decylfenylsulfide, which was testified by less quantities (by 1.8 times) of the water formed and of water-soluble acids (by 2.22 times). The introduction to oil of 0.5 % decylcyclohexylsulfide and decylfenylsulfide increased the oil electric strength, correspondingly, by 2.6 and by 5.5 times, upon water concentration in oil equal to 15·10-2 g/kg. The significance of the results obtained is in improving the transformer oil quality produced from the sulfur oils with the use of a novel additive.
format	article
author	Gainullina L.R.
author_facet	Gainullina L.R.
author_sort	Gainullina L.R.
title	Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters
title_short	Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters
title_full	Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters
title_fullStr	Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters
title_full_unstemmed	Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters
title_sort	effect of individual sulfide on the stability against oxidation of transformer oil and its electrical parameters
publisher	Academy of Sciences of Moldova
publishDate	2021
url	https://doaj.org/article/9cf5bdc1fb2e4387a71d8d0abbdf0723
work_keys_str_mv	AT gainullinalr effectofindividualsulfideonthestabilityagainstoxidationoftransformeroilanditselectricalparameters
_version_	1718409307844771840

Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters

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