The portable BAUR viola TD device is used for:
- Testing medium-voltage cables and electrical equipment (generators, transformers, and switchgear)
- Cable sheath testing
- Dissipation factor measurement and Monitored Withstand Test with tan δ
- Partial discharge measurement
- Full Monitored Withstand Test with tan δ and partial discharge measurement
The VLF testing makes it possible to locate insulation faults in plastic and paper in slated mass-impregnated cables in the shortest of testing times without impairing the quality of the surrounding insulating material.
The dissipation factor diagnostics with 0.1 Hz VLF truesinus® provide differentiated information on the ageing condition of paper-insulated mass-impregnated and PE/XLPE cables. In the case of PE/XLPE cables, the dissipation factor measurement is capable of differentiating between new, slightly, or severely "water tree"-damaged cables. This makes it possible to prioritize the need to replace cables.
The Monitored Withstand Test with tan delta combines the cable testing and dissipation factor measurement, allowing an accurate and comprehensive assessment of the cable condition. In addition, there is a minimum load on the cable due to the optimized test duration.