Results 1 to 10 of about 968 (114)
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
doaj +4 more sources
Impact of Load Ramping on Power Transformer Dissolved Gas Analysis [PDF]
IEEE Access, 2019 Dissolved gas in oil analysis (DGA) is one of the most reliable condition monitoring techniques, which is currently used by the industry to detect incipient faults within the power transformers.
Huize Cui +6 more
doaj +3 more sources
A Review of Dissolved Gas Analysis in Power Transformers
Energy Procedia, 2012 AbstractDissolved gas analysis (DGA) of transformers can provide insights into thermal and electrical stresses sustained by oil-immersed power transformers. Because it detects incipient transformer faults, DGA can help prevent further damage. Moreover, DGA is a sensitive and reliable technique for detecting incipient fault conditions in oil-immersed ...
Huo-Ching Sun
exaly +2 more sources
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
doaj +1 more source
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
doaj +1 more source
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: 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
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Energies, 2020 Transformer state forecasting and fault forecasting are important for the stable operation of power equipment and the normal operation of power systems.
Fang Yuan +5 more
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