Reduce the influencing factors to improve your SFRA measurements

November 2, 2018

The Sweep Frequency Response Analysis (SFRA) has become a standard method to assess the mechanical and electrical integrity of the power transformer’s active part. It provides a very high sensitivity to evaluate possible damages after transportation or for troubleshooting following a specific event such as a near failure with high short-circuit currents.

Users often struggle to reach a high reproducibility which is essential for a reliable condition assessment. Deviations, caused by reproducibility issues, can lead to a misinterpretation, unnecessary inspections or cost-intensive maintenance activities. This paper focuses on best practices in order to perform highly repeatable and reproducible SFRA measurements.

Enjoy reading and watch out for our paper of the month regularly!

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