Omicron FRANEO
Sweep Frequency Response Analyzer Tool
Sweep Frequency Response Analysis (SFRA) is a powerful and sensitive method to evaluate the mechanical integrity& electrical condition of core, windings and clamping structures within power transformers by measuring their electrical transfer functions over a wide frequency range.
SFRA analysis can detect incipient fault in transformers like:
- winding deformation – axial & radial, like hoop buckling, tilting, spiraling
- displacements between high and low voltage windings
- partial winding collapse
- shorted or open turns
- faulty grounding of core or screens
- core movement & shorting of lamination
- broken clamping structures
