[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4313/TEEM.2012.13.5.229

DGA Interpretation of Oil Filled Transformer Condition Diagnosis

Alghamdi, Ali Saeed (Institute of High Voltage and High Current, Faculty of Electrical Engineering, Universiti Teknologi/Technical and Vocational Training Corporation, Jeddah Secondary and Vocational Institute)
Muhamad, Nor Asiah (Institute of High Voltage and High Current, Faculty of Electrical Engineering, Universiti Teknologi)
Suleiman, Abubakar A. (Institute of High Voltage and High Current, Faculty of Electrical Engineering, Universiti Teknologi/National Agency for Science and Engineering Infrastructure)

Publication Information

Transactions on Electrical and Electronic Materials / v.13, no.5, 2012 , pp. 229-232 More about this Journal

Abstract

DGA is one of the most recent techniques developed to diagnose the fault condition on oil filled insulation transformers. There are more than 6 known different methods of DGA fault interpretation technique and so there is the likelihood that they may vary in their interpretations. A series of combined interpretation methods that can determine the power transformer condition faults in one assessment is therefore needed. This paper presents a computer program- based system developed to combine four DGA assessment techniques; Rogers Ratio Method, IEC Basic Ratio Method, Duval Triangle method and Key Gas Method. An easy to use Graphic User Interface was designed to give a visual display of the four techniques. The result shows that this assessment method can increase the accuracy of DGA methods by up to 20% and the no prediction result had been reduced down to 0%.

Keywords

Dissolved gas analysis (DGA); Oil filled transformer; Fault analysis;

Citations & Related Records

Reference

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