• ‍High dynamic range and accuracy: Allows even the most subtle electromechanical changes within the transformer to be detected‍
• Easy-to-use support software with advanced analysis tools: Easily select and deselect multiple sweeps and sets of sweeps to compare phase-to-phase or previous to current measurements. Advanced analysis and custom formulas allow for sound decision making with regard to further diagnostic analysis and transformer disposition‍
• Smallest SFRA instrument in the industry: FRAX instruments weigh from just 1.8 kg with batteries, with dimensions 25 cm x 17 cm x 5 cm, depending on the model. Easy to transport in a convenient case that houses cables and the test instrument
• ‍Hardware designed to ensure repeatable connections:Colour-coordinated connection points and wide C-clamp connectors with adjustable braided grounds ensure consistent connections no matter who uses the equipment, virtually eliminating changes in curves due to connection issues
• ‍Fulfils international standards for SFRA: Sweep frequency response analysis (SFRA) measurements for IEC 60076-18, IEEE C57.149, and more

• Built-in demagnetisation and automatic ground loop check
• Optional FSX200 switchbox enables one-time connection to all phases
• Active clamps for safe, one-hand bushing connection
• High measurement repeatability with shielded cabling and IEC-compliant grounding
• Battery operation with removable pack and flight-mode discharge
• Full sweep with ground check completed in under one minute
• Entry level version FRAX200 BAS with less features also available

Meeting all international standards for SFRA measurements, these innovative instruments offer a larger dynamic range and better accuracy than any other comparable test sets currently available. In addition, for the test connections to the transformer, they use a special cabling technology that ensures the repeatability of results.

The FRAX series operates by applying a sweep frequency test signal to the transformer and monitoring its response. The result is a unique fingerprint that reveals a wide range of faults when compared with a reference fingerprint for the same transformer. These include winding deformations and displacements, shorted and open windings, loose and broken clamping structures, core connection problems, core movement, and hoop buckling.