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Bayesian Duval Triangle Method for Fault Prediction and Assessment of Oil Immersed Transformers [PDF]
Measurement + Control, 2017 Dissolved gas analysis of transformer insulating oil is considered the best indicator of a transformer’s overall condition and is most widely used. In this study, a Bayesian network was developed to predict failures of electrical transformers.
Abdelaziz Lakehal, Fouad Tachi
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Transactions on Environment and Electrical Engineering, 2016 Dissolved gas-in-oil analysis (DGA) is a sensitive and reliable technique for the detection of incipient fault condition within oil-immersed transformers. When the mineral oil is subjected to high thermal or/and electrical stresses, it decomposes and, as
Sobhy Serry Dessouky +3 more
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Machine learning based multi-method interpretation to enhance dissolved gas analysis for power transformer fault diagnosis [PDF]
HeliyonAccurate interpretation of dissolved gas analysis (DGA) measurements for power transformers is essential to ensure overall power system reliability. Various DGA interpretation techniques have been proposed in the literature, including the Doernenburg ...
Suwarno +3 more
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Transformer fault diagnose intelligent system based on DGA methods [PDF]
Scientific ReportsPower transformers have great importance in power system networks. Any malfunctions in the power transformers cause a system disconnection, which leads to lost profits for the electricity utilities.
Saad A. Mohamed Abdelwahab +3 more
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Reduced Offspring Viability Is Associated With Long-Term Stability of a Narrow Avian Hybrid Zone. [PDF]
Ecol EvolWe investigated hybrid viability in a tropical, avian hybrid zone governed by strong selection on male secondary sexual traits between the white‐collared manakin (Manacus candei) and golden‐collared manakin (M. vitellinus). We assessed putative hybrid fitness by investigating adult survival and hatching success along with a prospective selective ...
Long KM +5 more
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Duval Triangle-Based Dissolved Gas Analysis using GNU Octave for Transformer Fault Detection
Aviation Electronics, Information Technology, Telecommunications, Electricals, ControlsTransformers are vital components in electrical power systems. However, they are also susceptible to various types of failures, including thermal and electrical faults caused by the formation of electromotive force, which, if left unaddressed, may result
Ervina Galuh Ika Putri +2 more
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Jurnal Jaringan Telekomunikasi, 2023 Transformers are one of the important electrical equipment in the power system. To prevent some electrical contact on the component in transformers, an insulator or dielectric material is needed likely insulating oil.
Muhammad Akmal Afibuddin Putra +3 more
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Conventional Dissolved Gases Analysis in Power Transformers: Review
Energies, 2023 Transformers insulated with mineral oil tend to form gases, which might be caused by system faults or extended use. Based on an evaluation of the main failure analysis techniques using combustible gases, this study reviewed the conventional techniques ...
Alcebíades Rangel Bessa +3 more
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Gas Production by Monoester of Saturated Fatty Acids under Electrical Fault
Jurnal Nasional Teknik Elektro, 2022 This paper deals with the gas production by monoester oil intended to be used as insulating oil under an electrical discharge of low energy. The monoester contains only saturated fatty acids in its hydrocarbon chain. The electrical fault was realized by
Abdul Rajab +3 more
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Diagnostic Simplexes for Dissolved-Gas Analysis
Energies, 2020 A Duval triangle is a diagram used for fault type identification in dissolved-gas analysis of oil-filled high-voltage transformers and other electrical apparatus.
James Dukarm +2 more
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