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Megger FRAX 150 Sweep Frequency Response Analyzer

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Downloads & Videos FRAX150_datasheet

Brand: Megger

Model: FRAX150

The FRAX 150 Sweep Frequency Response Analyzer (SFRA) detects potential mechanical and electrical problems that other methods are unable to detect.


  • Smallest and most rugged FRA instrument in the industry
  • Highest possible repeatability by using reliable cable practice and high-performance instrumentation
  • Fulfills all international standards for SFRA measurements
  • Highest dynamic range and accuracy in the industry
  • Built-in PC with powerful backlit screen for use in direct sunlight
  • Advanced analysis and decision support built into the software
  • Imports data from other FRA test sets


Power transformers are some of the most vital components in today’s transmission and distribution infrastructure. Transformer failures cost enormous amounts of money in unexpected outages and unscheduled maintenance. It is important to avoid these failures and make testing and diagnostics reliable and efficient.


Major utilities and service companies have used the FRA method for more than a decade. The measurement is easy to perform and will capture a unique “fingerprint” of the transformer. The measurement is compared to a reference “fingerprint” and gives a direct answer if the mechanical parts of the transformer are unchanged or not. Deviations indicate geometrical and/or electrical changes within the transformer.