Sweep frequency response analyzer

More than a test device

FRANEO 800 was developed for testing the mechanical and electrical integrity of power transformers after transportation or exposure to high fault currents. It uses the sweep frequency response analysis (SFRA) principle and measures the electrical transfer function over a wide range of frequencies. With our FRANEO 800 you can improve your transformer reliability, reduce maintenance costs and prevent expensive failures.

Widest dynamic range
FRANEO 800 provides the widest dynamic range in the SFRA industry (> 150 dB). In combination with the variable output voltage (0.1 Vpp to 10 Vpp) the signal-to-noise ratio can be enhanced, and the influence of interference reduced.
Short measurement times
The implemented algorithms enable more precise measurement results in less time by firstly performing a broadband measurement and then focusing on the critical frequency areas.
Reliable execution
The integrated ‘Ground Loop Check’ verifies the test setup and makes sure that the grounding braids are properly connected. It gives you a “Pass/Fail” assessment and either allows or prevents you from continuing with your measurement.
Battery-operated device
With the powerful integrated battery, you can also perform tests in environments without a power supply. This makes FRANEO 800 ideal for commissioning and troubleshooting tasks.

Small details make a big difference

FRANEO 800’s overall measurement principle is based on a comparison of an actual measurement and its fingerprint in order to allow detection of deviations. Therefore, it is vital that the measurement becomes reproducible which substantially depends on the connection technique used.

The specially designed clamps and wide flat braids guarantee a reliable test setup, making FRANEO 800 less sensitive to influences from its surroundings and also easier to use.

Simplified testing 

FRANEO 800 is operated with the Primary Test Manager™ (PTM) software, the ideal solution for diagnostic testing, condition assessment and easy data management. 

PTM automatically generates test plans based on the nameplate data and in accordance with international standards. Existing results can be easily imported in order to ensure a flexible, device-independent comparison. In addition, PTM offers automatic result assessment and smart features, such as the visualization of typical influences for deviations.

Key features

  • Extremely small and compact device guarantees optimum usability
  • Innovative connection technique ensures high level of reproducibility
  • Short measurement times due to the intelligent sweep algorithm
  • Highest dynamic range in SFRA testing industry (> 150 dB)
  • Fully compliant with the IEC 60076-18 and IEEE C57.149 standards


FRANEO 800 can be used for transformer testing, after:

  • a short-circuit event
  • before and after transport
  • an occurrence of high transient fault currents
  • a significant change in the monitored values (for example, combustible gases) or a safety shutdown

The following tests can also be performed:

  • Routine transformer condition measurement
  • Verification of unusual events determined during conventional testing

Did you know our Power Transformer Bundle?

One solution for comprehensive condition diagnosis of your power transformer.
It comprises the Primary Test Manager™ software and various OMICRON test systems.

More information

Solutions for:

Smart operation on site

Using FRANEO 800 and the included PTM software, you can benefit from a smart combination of solutions. FRANEO 800’s intuitive design makes it easy to connect. The PTM software guides you step-by-step through test set-up, execution and assessment. The additional PTMate app extends the feature set to your smartphone, such as individual wiring diagrams, and a dedicated START/STOP measurement button.


Primary Test Manager™ (PTM) – Testing and management software for medium- and high-voltage assets




October 6 - 8, 2020
Training Center Cergy-Pontoise, Cergy-Pontoise, France
CPC Product Family, TESTRANO 600, FRANEO 800, DIRANA, Primary Test Manager (PTM)

Get in touch

Need more details? Get a quotation?
Request for a demo?

You are using an outdated browser version.
Please upgrade your browser or use another browser to view this page correctly.