Transformers Magazine, Vol. 5 No. 3, 2018.
Izvorni znanstveni članak
Performing reliable and reproducible frequency response measurements on power transformers
Michael RÄDLER
Stephanie UHRIG
Sažetak
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 after a specific event such as a near failure with high short-circuit forces. However, users often struggle to reach a high reproducibility which is essential for a reliable condition assessment. Deviations, caused by reproducibility issues, can lead to misinterpretation, unnecessary inspections or cost-intensive maintenance activities. This paper focuses on best practices in order to perform highly repeatable and reproducible SFRA measurements.
Ključne riječi
IEC 60076-18; power transformer; reproducibility; SFRA; Sweep Frequency Response Analysis
Hrčak ID:
207737
URI
Datum izdavanja:
6.7.2018.
Posjeta: 2.097 *