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.
- 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
Measuring principle FRANEO 800 injects a sinusoidal excitation voltage with a continuously increasing frequency into one end of the transformer winding and measures the signal returning from the other end. Due to a direct measurement in the frequency domain, no additional data processing is required. The comparison of input and output signals generates a unique frequency response, which can be compared with reference data. Thereby, deviations can indicate changes of internal components. These deviations can be directly related to different sections of the frequency range and they can be discerned from each other.
The SFRA measurement technique is the most sensitive diagnostic method for the detection of mechanical deformations. As the SFRA covers a wide frequency range, electrical defects and faults can also be indicated. Based on the SFRA results you can reliably assess the integrity of your power transformer and, if required, derive further diagnostic measurement techniques, such as leakage reactance, exciting current, or winding resistance measurements. These measurements can be performed with our multifunctional CPC 100 + CP TD12/15. FRANEO 800 is a very reliable and efficient test set for the classical core and winding diagnosis of power transformers. At the same time, it supports you in the best possible way during the diagnosis of complex defects within the active part of your power transformer
Operation: From PTM software.
Operating temperature range: 0 °C … +35 °C Nominal temperature range: 18 °C … +28 °C Storage temperature range: -30 °C … +60 °C
Measurements: (RE + RH >10 kΩ) Dimensions: 240 mm (W) x 220 mm (D) x 90 mm ( H )