Impact of SFRA Setup Issues on Transformer Frequency Response

Michael D. Wolf Industry Topics, Winter 2020 Industry Topics

Sweep frequency response analysis (SFRA) is a popular test to confirm the mechanical and electrical integrity of a transformer. However, the resulting traces can be difficult for field personnel to interpret due to the visual nature of the data. It is more straightforward to compare numbers against prior data or against a stated limit than to interpret subtle differences in …