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DYNAMICS MODEL OF MOISTURE IN PAPER INSULATION-TRANSFORMER OIL SYSTEM IN NON-STATIONARY THERMAL MODES OF THE POWER TRANSFORMER [PDF]
Electrical engineering & Electromechanics, 2016 Introduction. An important problem in power transformers resource prognosis is the formation of moisture dynamics trends of transformer insulation. Purpose.
V.V. Vasilevskij
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CSEE Journal of Power and Energy SystemsTo solve the problem of the lack of prediction methods that depend on IoT sensing data for the insulation degradation of power transformer windings, an online transformer winding insulation degradation prediction method based on multi-source IoT sensing ...
Yuehan Qu +4 more
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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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Electrical engineering & Electromechanics, 2014 Analysis reveals that all phases of a power transformer life cycle have a significant effect on the isolation resource. The paper introduces a technique for evaluating residual life of power transformer insulation via simulation of predicted results of ...
M.A. Poliakov, V.V. Vasilevskij
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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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Life cycle of transformer oil [PDF]
Hemijska Industrija, 2008 The consumption of electric power is constantly increasing due to industrialization and population growth. This results in much more severe operating conditions of transformers, the most important electrical devices that make integral parts of power ...
Đurđević Ksenija R. +2 more
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Frequency Diagnostics of Insulating System of Power Transformers [PDF]
Electrical, Control and Communication Engineering, 2020 Abstract The paper presents experimental diagnostics of the oil-paper insulating system of power transformers using progressive frequency method. The first part of the paper deals with the basic information about diagnostics of power oil transformers.
Gutten, Miroslav +3 more
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Review on monitoring of transformer insulation oil using optical fiber sensors
Results in Optics, 2023 Power transformers are critical components of power system networks. Failure of this equipment risks the entire system, resulting in power outages and income losses. The reliability of this device is generally determined by its insulating quality. Hence,
Sorokhaibam Nilakanta Meitei +2 more
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Effects of the Insulation Quality on the Frequency Response of Power Transformers [PDF]
Journal of Electrical Engineering and Technology, 2006 This paper presents results of frequency domain spectroscopy (FDS) measurements on oilimpregnated pressboard insulation, their analyses and use of the data for modeling high frequency response (FRA) of transformers. The dielectric responses were measured in a broad frequency range, i.e.
Abeywickrama, Nilanga +3 more
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Frequency Response Analysis: An Overview of the Measurement Process and Interpretation of Results for Fault Diagnosis and Location in Power Transformers [PDF]
International Journal of Industrial Electronics, Control and OptimizationOne of the main components of a power transformer is the transformer insulation system, namely, transformer insulation oil and transformer insulation paper. Any failure can cause the transformer to fail temporarily or permanently.
Hamed Shadfar, Hamid Reza Izadfar
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