Selecting a condition monitoring system for enhancing effectiveness of power transformer maintenance.

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Title: Selecting a condition monitoring system for enhancing effectiveness of power transformer maintenance.
Authors: Hernandez, Maria Del Pilar Colin1,2 mariadelpilar.colinhernandez@postgrad.manchester.ac.uk, Labib, Ashraf1,2 ashraf.labib@port.ac.uk
Source: Journal of Quality in Maintenance Engineering. 2017, Vol. 23 Issue 4, p400-414. 15p.
Subjects: Power transformers, Maintainability (Engineering), Monitoring of machinery, Failure mode & effects analysis, Decision making
Abstract: Purpose The purpose of this paper is to propose a model for assisting in the decision-making process for acquiring a condition monitoring (CM) system for an oil-immersed power transformer in order to improve its maintainability.Design/methodology/approach The proposed model is based on the analytic hierarchy process. The assessment was performed by pairwise comparisons, and a sensitivity analysis (what-if analysis) was used to identify the implications of changing the criteria weights. In order to select the criteria and alternatives, a search was conducted for the power transformer failure modes, monitored parameters and CM technologies.Findings The proposed model provides a structured solution for a complex problem: deciding the best combination of technologies for CM of power transformers.Research limitations/implications Because the pairwise comparisons were done only by the author, the results may need to be improved with the assessment of more experts. Also, it was done for a specific type of transformer; it might be necessary to customise the alternatives for other cases. Finally, as a future consideration, more levels can be added to the hierarchy to improve the accuracy of the model.Practical implications The power transformer is an asset where the most appropriate maintenance strategy for it is condition-based maintenance. In order to improve its maintainability, it is recommendable to improve its testability and diagnosability. For achieving this goal, the maintenance personnel have to decide the best combination of technologies for CM. The methodology developed can assist the decision makers to select the most appropriate cost-benefit strategy.Originality/value The paper presents a structured and generic method of selecting the most appropriate CM system for power transformers. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Quality in Maintenance Engineering is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubTypeId: academicJournal
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  Data: Selecting a condition monitoring system for enhancing effectiveness of power transformer maintenance.
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Hernandez%2C+Maria+Del+Pilar+Colin%22">Hernandez, Maria Del Pilar Colin</searchLink><relatesTo>1,2</relatesTo><i> mariadelpilar.colinhernandez@postgrad.manchester.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Labib%2C+Ashraf%22">Labib, Ashraf</searchLink><relatesTo>1,2</relatesTo><i> ashraf.labib@port.ac.uk</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Quality+in+Maintenance+Engineering%22">Journal of Quality in Maintenance Engineering</searchLink>. 2017, Vol. 23 Issue 4, p400-414. 15p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Power+transformers%22">Power transformers</searchLink><br /><searchLink fieldCode="DE" term="%22Maintainability+%28Engineering%29%22">Maintainability (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Monitoring+of+machinery%22">Monitoring of machinery</searchLink><br /><searchLink fieldCode="DE" term="%22Failure+mode+%26+effects+analysis%22">Failure mode & effects analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Decision+making%22">Decision making</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose The purpose of this paper is to propose a model for assisting in the decision-making process for acquiring a condition monitoring (CM) system for an oil-immersed power transformer in order to improve its maintainability.Design/methodology/approach The proposed model is based on the analytic hierarchy process. The assessment was performed by pairwise comparisons, and a sensitivity analysis (what-if analysis) was used to identify the implications of changing the criteria weights. In order to select the criteria and alternatives, a search was conducted for the power transformer failure modes, monitored parameters and CM technologies.Findings The proposed model provides a structured solution for a complex problem: deciding the best combination of technologies for CM of power transformers.Research limitations/implications Because the pairwise comparisons were done only by the author, the results may need to be improved with the assessment of more experts. Also, it was done for a specific type of transformer; it might be necessary to customise the alternatives for other cases. Finally, as a future consideration, more levels can be added to the hierarchy to improve the accuracy of the model.Practical implications The power transformer is an asset where the most appropriate maintenance strategy for it is condition-based maintenance. In order to improve its maintainability, it is recommendable to improve its testability and diagnosability. For achieving this goal, the maintenance personnel have to decide the best combination of technologies for CM. The methodology developed can assist the decision makers to select the most appropriate cost-benefit strategy.Originality/value The paper presents a structured and generic method of selecting the most appropriate CM system for power transformers. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Quality in Maintenance Engineering is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1108/JQME-07-2015-0027
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 15
        StartPage: 400
    Subjects:
      – SubjectFull: Power transformers
        Type: general
      – SubjectFull: Maintainability (Engineering)
        Type: general
      – SubjectFull: Monitoring of machinery
        Type: general
      – SubjectFull: Failure mode & effects analysis
        Type: general
      – SubjectFull: Decision making
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      – TitleFull: Selecting a condition monitoring system for enhancing effectiveness of power transformer maintenance.
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            NameFull: Hernandez, Maria Del Pilar Colin
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            NameFull: Labib, Ashraf
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              M: 10
              Text: 2017
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              Y: 2017
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