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Current Status and Future Trends in Frequency-Response Analysis With a Transformer in Service

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4 Author(s)
Gomez-Luna, E. ; GRALTA Research Group, Universidad del Valle, Cali, Colombia ; Aponte Mayor, G. ; Gonzalez-Garcia, C. ; Pleite Guerra, J.

This paper presents the current status and future trends in the application of the frequency-response analysis (FRA) technique with the transformer in service (online) through bibliographic review and analysis. As a result, three basic stages of the online FRA test have been identified and defined: 1) injection and excitation signal measurement; 2) recording, filtering and processing of measured signals; and 3) curve analysis and interpretation. This work presents an overview of the online FRA technique, useful for subsequent research in this area.

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Power Delivery, IEEE Transactions on  (Volume:28 ,  Issue: 2 )