of incipient faults in power transformers. The NN was trained according to five diagnosis
criteria commonly used for dissolved gas analysis (DGA) in transformer insulating oil. These
criteria are Doernenburg, modified Rogers, Rogers, IEC and CSUS. Once trained, the neural
network was tested by using a new set of DGA results. Finally, NN diagnosis results were
compared with those obtained by inspection and an analysis. The study shows that NN rate …