Power Transformer Condition Evaluation by the Analysis of DGA Methods

Power transformer condition evaluation by the analysis of insulating oil is presented in this paper. Evaluating the condition of power transformer by means of Dissolved Gas Analysis (DGA) has been a famous approach for insulating oil analysis to find out incipient faults in transformers before catas...

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Published in2012 Asia-Pacific Power and Energy Engineering Conference pp. 1 - 4
Main Authors Haema, J., Phadungthin, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2012
Subjects
Discharges (electric)
Gases
IEC
Oil insulation
Partial discharges
Power transformer insulation
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Abstract Power transformer condition evaluation by the analysis of insulating oil is presented in this paper. Evaluating the condition of power transformer by means of Dissolved Gas Analysis (DGA) has been a famous approach for insulating oil analysis to find out incipient faults in transformers before catastrophic damages occur. Diagnostic tests of power transformer are classified into five types: key gases, roger ratio, Doernenburg, IEC and Duval triangle methods. The study was further done to investigate the accuracy of each method in predicting the fault and the consistency of the methods. Then the result of this work is useful for planning an appropriate maintenance strategy to keep the power transformer in acceptable condition.
AbstractList Power transformer condition evaluation by the analysis of insulating oil is presented in this paper. Evaluating the condition of power transformer by means of Dissolved Gas Analysis (DGA) has been a famous approach for insulating oil analysis to find out incipient faults in transformers before catastrophic damages occur. Diagnostic tests of power transformer are classified into five types: key gases, roger ratio, Doernenburg, IEC and Duval triangle methods. The study was further done to investigate the accuracy of each method in predicting the fault and the consistency of the methods. Then the result of this work is useful for planning an appropriate maintenance strategy to keep the power transformer in acceptable condition.
Author Haema, J.
Phadungthin, R.
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  givenname: R.
  surname: Phadungthin
  fullname: Phadungthin, R.
  email: rattanakornp@kmutnb.ac.th
  organization: Dept. of Electr. Eng. Technol., King Mongkut's Univ. of Technol. North Bangkok, Bangkok, Thailand
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Snippet Power transformer condition evaluation by the analysis of insulating oil is presented in this paper. Evaluating the condition of power transformer by means of...
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SubjectTerms Discharges (electric)
Gases
IEC
Oil insulation
Partial discharges
Power transformer insulation
Title Power Transformer Condition Evaluation by the Analysis of DGA Methods
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