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.
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IEA report claims batteries are ‘changing the game’
It is important in trucks and other commercial vehicles as the payload will be reduced if the battery weight is penal. Battery applications in the...