With FRANEO 800, OMICRON has brought the next generation of SFRA test sets to the market. Since the IEC 60076-18 and IEEE C57.149 standards were introduced, SFRA has become one of the common electrical tests for detecting winding defects and faults in the magnetic core of power transformers and its acceptance in the market has increased accordingly.
As with its established predecessor the FRAnalyzer, FRANEO 800 looks for mechanical and electrical changes within windings, internal contacts, the clamping structure or the transformer core by analysing the frequency response. These changes can be caused by shocks, e.g. during transportation, seismic activities or mains power failures such as short circuits. SFRA is the most reliable testing method for recognising these changes. In addition, it is fast and cost-effective, given that the active component of the transformer does not need to be removed.