FRAnalyzer (Frequency Response Analyzer) was developed for the diagnosis of power transformer windings. It performs a frequency response test to ensure that the windings were not damaged because of transport
transformers or passage of large currents. FRAnalyzer uses the principle of response analysis in frequency sweep (SFRA).
It detects faults in the windings and in the magnetic circuit, thereby improving the reliability of transformers, reduce maintenance costs and avoid costly outages.