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Diagnostic Simplexes for Dissolved-Gas Analysis [PDF]
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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Research progress of online monitoring techniques for dissolved gas analysis in insulating oil [PDF]
Frontiers in ChemistryDissolved gas analysis (DGA) in insulating oil can achieve early warning of local discharge, overheating or arc failure in transformers. It can also quantitatively evaluate the aging degree of insulating equipment, providing a basis for formulating ...
Hua Mao +13 more
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Optimal Data Selection Rule Mining for Transformer Condition Assessment
IEEE Access, 2021 The condition of the transformer can be accurately assessed based on dissolved gas online monitoring and analysis technology. With the widespread use of Dissolved Gas Analysis (DGA) technology, a large amount of dissolved gas time series data is obtained
Peng Zhang +6 more
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Applied Sciences, 2022 The dissolved gas concentration in a stirred tank has significant importance in the chemical and biological processing industries as mass transfer from the injected gas to an aqueous solution must occur for the gas to be usable.
Youngwook Lim +3 more
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Gas Losses in Transformers—Influences and Consideration
IEEE Access, 2023 Dissolved gas analysis (DGA) is frequently used for the condition assessment and monitoring of transformers. In the case of free-breathing transformers, gas losses may occur at the phase interface due to the chaotic molecular movement of the dissolved ...
Christof Riedmann +3 more
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Emitter: International Journal of Engineering Technology, 2022 Fault detection in the incipient stage is necessary to avoid hazardous operating conditions and reduce outage rates in transformers. Fault-detected dissolved gas analysis is widely used to detect incipient faults in oil-immersed transformers. This paper
Mauridhi Hery Purnomo +4 more
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New Experimental Tools to Use Noble Gases as Artificial Tracers for Groundwater Flow
Frontiers in Water, 2022 Labeling groundwater by injecting an artificial tracer is a standard and widely used method to study groundwater flow systems. Noble gases dissolved in groundwater are potentially ideal artificial tracers, as they are not subject to biogeochemical ...
Matthias S. Brennwald +8 more
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Transformer Health Monitoring Using Dissolved Gas Analysis
International Journal of Prognostics and Health Management, 2022 As integral components of any power plant, transformers sup-ply the generated electricity to the grid. However, the trans-former’s cellulose-based paper insulation and the mineral oilin which it is immersed break down over time under stan-dard operating conditions—or more rapidly due to potentialfaults within the system. This technical brief exhibits a
Cody Walker +2 more
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Transformer Health Monitoring Using Dissolved Gas Analysis: A Technical Brief
International Journal of Prognostics and Health Management, 2022 As integral components of any power plant, transformers sup-ply the generated electricity to the grid. However, the trans-former’s cellulose-based paper insulation and the mineral oilin which it is immersed break down over time under stan-dard operating ...
Cody Walker +2 more
doaj +1 more source
Frontiers in Earth Science, 2021 Previous studies have revealed that gas compositions of fluid samples collected from southwestern Taiwan, where many hot springs and mud volcanoes are distributed along with tectonic structures, show significant variation before and after some disaster ...
Ching-Chou Fu +7 more
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