Analytical methods for assessing paper degradation In transformers [PDF]
, 2006 Power transformers are essential equipments for distributing electricity. However, maintenance of these equipments is necessary to ensure long working life and to avoid catastrophic incidents.
Christofidis, Stavros
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Pre-breakdown Characteristics of Contaminated Power Transformer Oil [PDF]
, 2007 In this paper we have studied pre-breakdown characteristics of transformer oil in the presence of different levels of contamination. The contaminant is fibrous dust from pressboard insulation used for high voltage transformers.
Zuber, H M, Chen, G
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Effect of transformer oil color on breakdown voltage [PDF]
E3S Web of ConferencesInsulation in high voltage applications is crucial, especially transformer oil. Transformer oil plays a key role in electrical power systems as an insulating medium.
Zein Hermagasantos +8 more
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Effect of different shapes of electrodes on bridging in contaminated transformer oil [PDF]
, 2014 Contaminated transformer oil has been tested under non uniform electric fields and the effect of different electrode systems presented in this paper. Three different electric fields were examined i.e. DC, AC and DC biased AC.
Igor O. Golosnoy +9 more
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A Comparative Study of Physicochemical, Dielectric and Thermal Properties of Pressboard Insulation Impregnated with Natural Ester and Mineral Oil [PDF]
, 2011 Natural ester is considered to be a substitute of mineral oil in the future. To apply natural ester in large transformers safely, natural ester impregnated solid insulation should be proved to have comparable dielectric strength and thermal stability to ...
Yang, Lijun +4 more
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Inversion detection method of oil‐immersed transformer abnormal heating state
IET Electric Power Applications, 2023 Transformer overheating faults have an important impact on the transformer safe and stable operation. Taking 10 kV oil‐immersed transformer as the research object, using the indirect coupling analysis method of electromagnetic thermal fluid multi ...
Yongqing Deng +4 more
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OPERATION OF TRANSFORMER OIL OF POWER TRANSFORMER
, 2022 "Science and innovation" international scientific journal.
openaire +2 more sources
Structural transformation and the oil price [PDF]
Review of Economic Dynamics, 2014 Abstract What part of the high oil price can be explained by structural transformation in the developing world? Will continued structural transformation in these countries result in a permanently higher oil price? To address these issues I identify an inverted-U shaped relationship in the data between aggregate oil intensity and the extent of ...
openaire +2 more sources
Experimental study of transformer oil explosion affected by a vertical steel plate [PDF]
AIP AdvancesThe transformer oil within the piping of ultra-high voltage converter transformers is prone to evaporation, forming a flammable oil–gas mixture. In the presence of an ignition source, an explosion of transformer oil can cause severe damage to the power ...
Yubiao Huang +3 more
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Analysis of Influence of Moisture Content Ondielectric Properties of Transformer Oil after Aging
Journal of Harbin University of Science and Technology, 2020 Transformer oil is an important liquid insulating medium in oil-immersed power transformers，which has the functions of arc extinguishing，insulation and cooling.
JIA Hai-feng +4 more
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