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.
FRANEO 800s 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.
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.
Features
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
Applications
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
With FRANEO 800 and the SFRA being used you can detect defects as well as faults in the magnetic core, the winding assembly, and the clamping structures of power transformers, such as:
* Axial and radial winding deformation
* Displacements between high- and low-voltage windings
* Partial winding collapse
* Shorted or open turns
* Faulty grounding of core or screens
* Core movement
* Broken clamping structures
* Problematic internal connections
As a result you can improve the reliability of your transformers, reduce maintenance costs and, most of all, avoid unexpected and expensive outages.
