%0 Journal Article
%T DGA Interpretation of Oil Filled Transformer Condition Diagnosis
%A Ali Saeed Alghamdi
%A Nor Asiah Muhamad
%A Abubakar A. Suleiman
%J Transactions on Electrical and Electronic Materials
%D 2012
%I Korean Institute of Electrical and Electronic Material Engineers (KIEEME)
%X DGA is one of the most recent techniques developed to diagnose the fault condition on oil filled insulationtransformers. There are more than 6 known different methods of DGA fault interpretation technique and so thereis the likelihood that they may vary in their interpretations. A series of combined interpretation methods that candetermine the power transformer condition faults in one assessment is therefore needed. This paper presents acomputer program- based system developed to combine four DGA assessment techniques; Rogers Ratio Method, IECBasic Ratio Method, Duval Triangle method and Key Gas Method. An easy to use Graphic User Interface was designedto give a visual display of the four techniques. The result shows that this assessment method can increase the accuracyof DGA methods by up to 20% and the no prediction result had been reduced down to 0%.
%K Dissolved gas analysis (DGA)
%K Oil filled transformer
%K Fault analysis
%U http://dx.doi.org/10.4313/TEEM.2012.13.5.229