Power Transformer Fault Prediction Using Dissolved Gas Analysis and Neural Networks.

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Title: Power Transformer Fault Prediction Using Dissolved Gas Analysis and Neural Networks.
Authors: Bessa, Alcebíades Rangel1 (AUTHOR), Fardin, Jussara Farias1 (AUTHOR), Ciarelli, Patrick Marques1 (AUTHOR), Encarnação, Lucas Frizera1 (AUTHOR) lucas.encarnacao@ufes.br
Source: Energies (19961073). Jun2026, Vol. 19 Issue 12, p2934. 26p.
Subject Terms: *Power transformers, *Artificial neural networks, *Recurrent neural networks, *Long short-term memory, *Failure analysis, *Equipment maintenance & repair, *Multilayer perceptrons, *Methane
Abstract: In this work, we present a neural network-based study capable of predicting faults in oil-insulated power transformers through the analysis of dissolved gases. The advantage of this study lies in using data already collected by electric power companies, which gather it to comply with international or regional standards; however, they sometimes act only after the equipment is already in a faulty condition. Therefore, the challenge in this work was data regularization, as collections typically occur at long intervals of 6 to 12 months. Furthermore, samples are often irregular, as data collection depends on factors such as weather and the availability of maintenance teams. As a result of this work, Multilayer Perceptron (MLP), Gated Recurrent Unit (GRU), and Long Short-Term Memory (LSTM) were used to predict failures with advanced forecasts ranging from 1 to 6 months, achieving accuracies of 97.5% and 85%, respectively. Thus, these models prove to be important tools for maintenance planning, enabling adequate predictability for organizing equipment shutdowns without the need for high investments in installing tools to capture this information online and adapting substations to send data to control rooms or other analysis centers. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 194909383
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Power Transformer Fault Prediction Using Dissolved Gas Analysis and Neural Networks.
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Bessa%2C+Alcebíades+Rangel%22">Bessa, Alcebíades Rangel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fardin%2C+Jussara+Farias%22">Fardin, Jussara Farias</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ciarelli%2C+Patrick+Marques%22">Ciarelli, Patrick Marques</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Encarnação%2C+Lucas+Frizera%22">Encarnação, Lucas Frizera</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lucas.encarnacao@ufes.br</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jun2026, Vol. 19 Issue 12, p2934. 26p.
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  Data: *<searchLink fieldCode="DE" term="%22Power+transformers%22">Power transformers</searchLink><br />*<searchLink fieldCode="DE" term="%22Artificial+neural+networks%22">Artificial neural networks</searchLink><br />*<searchLink fieldCode="DE" term="%22Recurrent+neural+networks%22">Recurrent neural networks</searchLink><br />*<searchLink fieldCode="DE" term="%22Long+short-term+memory%22">Long short-term memory</searchLink><br />*<searchLink fieldCode="DE" term="%22Failure+analysis%22">Failure analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Equipment+maintenance+%26+repair%22">Equipment maintenance & repair</searchLink><br />*<searchLink fieldCode="DE" term="%22Multilayer+perceptrons%22">Multilayer perceptrons</searchLink><br />*<searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this work, we present a neural network-based study capable of predicting faults in oil-insulated power transformers through the analysis of dissolved gases. The advantage of this study lies in using data already collected by electric power companies, which gather it to comply with international or regional standards; however, they sometimes act only after the equipment is already in a faulty condition. Therefore, the challenge in this work was data regularization, as collections typically occur at long intervals of 6 to 12 months. Furthermore, samples are often irregular, as data collection depends on factors such as weather and the availability of maintenance teams. As a result of this work, Multilayer Perceptron (MLP), Gated Recurrent Unit (GRU), and Long Short-Term Memory (LSTM) were used to predict failures with advanced forecasts ranging from 1 to 6 months, achieving accuracies of 97.5% and 85%, respectively. Thus, these models prove to be important tools for maintenance planning, enabling adequate predictability for organizing equipment shutdowns without the need for high investments in installing tools to capture this information online and adapting substations to send data to control rooms or other analysis centers. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194909383
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.3390/en19122934
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 26
        StartPage: 2934
    Subjects:
      – SubjectFull: Power transformers
        Type: general
      – SubjectFull: Artificial neural networks
        Type: general
      – SubjectFull: Recurrent neural networks
        Type: general
      – SubjectFull: Long short-term memory
        Type: general
      – SubjectFull: Failure analysis
        Type: general
      – SubjectFull: Equipment maintenance & repair
        Type: general
      – SubjectFull: Multilayer perceptrons
        Type: general
      – SubjectFull: Methane
        Type: general
    Titles:
      – TitleFull: Power Transformer Fault Prediction Using Dissolved Gas Analysis and Neural Networks.
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          Name:
            NameFull: Bessa, Alcebíades Rangel
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            NameFull: Fardin, Jussara Farias
      – PersonEntity:
          Name:
            NameFull: Ciarelli, Patrick Marques
      – PersonEntity:
          Name:
            NameFull: Encarnação, Lucas Frizera
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            – D: 15
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
          Identifiers:
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              Value: 19961073
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              Value: 19
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              Value: 12
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            – TitleFull: Energies (19961073)
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