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Dissolved gas analysis: Gas measurements technologies – Part 2 – Gas Chromatography (GC) [PDF]
, 2023 This is the second part of the column “Gas measurement technologies for DGA”. In Part 1, the principles and problematics of DGA (dissolved gas analysis) were presented as a chemical method based on chemical measurements. The column is mainly intended for
Grisaru, Marius
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Energies, 2012 Dissolved gas analysis (DGA) has been widely applied to diagnose internal faults in transformer insulation systems. However, the accuracy of DGA technique is limited because of the lack of positive correlation of the fault-identifying gases with faults ...
Jian Li +3 more
doaj +1 more source
A Multinomial DGA Classifier for Incipient Fault Detection in Oil-Impregnated Power Transformers
Algorithms, 2021 This study investigates the use of machine-learning approaches to interpret Dissolved Gas Analysis (DGA) data to find incipient faults early in oil-impregnated transformers.
George Odongo +2 more
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Online Dissolved Gas Analysis (DGA) Monitoring System
CoRR, 2019 Transformers are critical assets in power systems and transformer failures can cause asset damage, customer outages, and safety concerns. Dominion Energy has a sophisticated monitoring process for the transformers. One of the most cost-efficient, convenient and practical transformer monitoring methods in industry is Dissolved Gas Analysis(DGA ...
Xianda Deng +4 more
openaire +2 more sources
Improved Fuzzy C-Means Clustering for Transformer Fault Diagnosis Using Dissolved Gas Analysis Data
Energies, 2018 Dissolved gas analysis (DGA) of the oil allows transformer fault diagnosis and status monitoring. Fuzzy c-means (FCM) clustering is an effective pattern recognition method, but exhibits poor clustering accuracy for dissolved gas data and usually fails to
Enwen Li +3 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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Fault diagnosis of transformer using artificial intelligence: A review
Frontiers in Energy Research, 2022 Transformer is one of the important components of the power system, capable of transmitting and distributing the electricity generated by renewable energy sources.
Yan Zhang +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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Angewandte Chemie, EarlyView.Increasing the density of isolated manganese (Mn) atoms in carbon nitride (CNx) photocatalysts does not continuously improve performance. Instead, beyond a critical loading, the polymer support reorganizes, altering charge‐carrier dynamics and oxygen activation while preserving atomic dispersion.
Viktoria Velichko +14 more
wiley +2 more sources
Fuzzy Algorithm for Power Transformer Diagnostics
Advances in Fuzzy Systems, 2013 Dissolved gas analysis (DGA) of transformer oil has been one of the most reliable techniques to detect the incipient faults. Many conventional DGA methods have been developed to interpret DGA results obtained from gas chromatography.
Nitin K. Dhote, Jagdish B. Helonde
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