Results 31 to 40 of about 7,492 (146)
Diagnosing the type and location of the transformer fault by analyzing the dissolved gas using fuzzy logic [PDF]
هوش محاسباتی در مهندسی برقThere are many methods to diagnose transformer faults, including dissolved gas analysis (DGA), done in two conventional and smart ways. This paper presents a new method based on fuzzy logic and 5 DGA methods (key gas method, Durenberg's ratio method ...
Mohamad Beiranvand, Asghar Akbari Froud
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The Turbulence Spectrum of Molecular Clouds in the Galactic Ring Survey: A Density-Dependent PCA Calibration [PDF]
, 2011 Turbulence plays a major role in the formation and evolution of molecular clouds. The problem is that turbulent velocities are convolved with the density of an observed region.
Brunt, Christopher +5 more
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Energies, 2020 The article describes a case study when the voltage collapse during lightning impulse tests of new power transformers was noticed and when the repeated tests finished with a positive result.
Tomasz Piotrowski +3 more
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Enhancing Diagnostic Accuracy of Transformer Faults Using Teaching-Learning-Based Optimization
IEEE Access, 2021 The early detection of the transformer faults with high accuracy rates guarantees the continuous operation of the power system networks. Dissolved gas analysis (DGA) is a technique that is used to detect or diagnose the transformer faults based on the ...
Sherif S. M. Ghoneim +3 more
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The conjecturing process: perspectives in theory and implications in practice [PDF]
, 2007 In this paper we analyze different types and stages of the conjecturing process. A classification of conjectures is discussed. A variety of problems that could lead to conjectures are considered from the didactical point of view. Results from a number of
Cañadas, María C. +4 more
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IEEE Access, 2022 Transformer oil insulation condition may be deteriorated due to electrical and thermal faults, which may lead to transformer failure and system outage. In this regard, the first part of this paper presents comprehensive maintenance for power transformers
Mohamed Badawi +7 more
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Analisis Kualitas Minyak Trafo Menggunakan Data Dissolved Gas Analysis dan Water Content
Protek: Jurnal Ilmiah Teknik Elektro, 2018 Transformer is a vital equipment in the power system. If the transformer is damage, can cause the electrical distribution to the consumer will be disrupted. Therefore, it needs special maintenance the performance of the transformer to avoid damage.
Abdul Syakur, Fanny Rizka Savitri
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Energies, 2020 This research focuses on problem identification due to faults in power transformers during operation by using dissolved gas analysis such as key gas, IEC ratio, Duval triangle techniques, and fuzzy logic approaches.
Nitchamon Poonnoy +2 more
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Combining Contrast Invariant L1 Data Fidelities with Nonlinear Spectral Image Decomposition [PDF]
, 2017 This paper focuses on multi-scale approaches for variational methods and corresponding gradient flows. Recently, for convex regularization functionals such as total variation, new theory and algorithms for nonlinear eigenvalue problems via nonlinear ...
A Chambolle +22 more
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Energies, 2016 Dissolved gas analysis (DGA) is attracting greater and greater interest from researchers as a fault diagnostic tool for power transformers filled with vegetable insulating oils.
Chenmeng Xiang +5 more
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