Oil-Immersed Power Transformer Condition Monitoring Methodologies: A Review
Energies, 2022 A power transformer is one of the most critical and expensive assets in electric power systems. Failure of a power transformer would not only result in a downtime to the entire transmission and distribution networks but may also cause personnel and ...
Lan Jin +3 more
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A Methodology for Diagnosing Faults in Oil-Immersed Power Transformers Based on Minimizing the Maintenance Cost [PDF]
IEEE Access, 2020 This article proposes a methodology for diagnosing faults in oil-immersed power transformers that considers correlation as a random variable and models the power transformer diagnosis problem as a hypothesis testing problem.
Ming-Jong Lin +2 more
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Data augmentation for fault diagnosis of oil-immersed power transformer
Energy Reports, 2023 110 kV oil immersed transformer is a key part of the power transmission and transformation system, which determines the power quality and transmission efficiency. Its fault diagnosis can greatly reduce the maintenance cost and improve the economy.
Ke Li, Jian Li, Qi Huang, Yuhui Chen
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Dielectric Performance of Magneto-Nanofluids for Advancing Oil-Immersed Power Transformer [PDF]
IEEE Access, 2020 Recently, nanofluids are introduced in the power utilities for the dielectric performance enhancement of power transformer oil. The compactness and fault improvement of the power transformers has resulted in the necessity of next-generation insulating ...
Md Rashid Hussain +4 more
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Thermal field modeling and characteristic analysis based on oil immersed transformer
Frontiers in Energy Research, 2023 Oil-immersion transformer plays an important role in the operation of power system, and its reliable operation is the basis of the safe and economic operation of power system.
Chao Gao +5 more
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Control of cooling of an oil-immersed power transformer by varying speed of fans [PDF]
Tehnika, 2016 The paper presents a prototype system for speed control of cooling fans for a small oil-immersed 6.6 kVA transformer, implemented on a standard PLC. Generally, the potential for optimization of the cooling process depends on the accessible cooling modes ...
Đorđević Nikola Z. +4 more
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Study on Sound Field Distribution Rule for Tank Structures of Large Oil-immersed Transformers [PDF]
E3S Web of Conferences, 2021 Large oil-immersed transformers are an important part of the transmission and distribution network in power systems. Power transformers are the main noise source of substations.
Yuchao Ma +4 more
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The Need for Experimental and Numerical Analyses of Thermal Ageing in Power Transformers
Energies, 2022 Most power transformers are oil-immersed transformers for which its insulation system consists of oil and cellulosic solid. The insulation liquid impregnates the solid-covering air spaces, which improves the efficiency of the insulation system.
Inmaculada Fernández
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On the Estimation of Elapsed Life of Oil-Immersed Power Transformers [PDF]
IEEE Transactions on Power Delivery, 2005 Inadvertent failure of power transformers has serious consequences on the system reliability, economics, and the revenue accrual. An accurate estimation of transformer life can, to a very large extent, mitigate the problems, besides satisfying the conflicting requirements of optimum utilization of the equipment and safeguarding the reliability. In this
Pradhan, Manoj Kumar, Ramu, TS
openaire +2 more sources
Sensors, 2023 Power transformers are essential apparatuses used to transfer electrical energy from one voltage-level circuit to another. For reliable systems, preventive maintenance of the transformers is required to ensure good services of all mechanical, electrical,
Anantawat Kunakorn +4 more
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