Baur Frida TD PD-TaD 62 - VLF Tan Delta Tester and PD Diagnostics System Package

The PD-TaD 62 portable PD diagnostics system is used in combination with a BAUR VLF generator for carrying out:

• Partial discharge testing and location
• VLF cable testing with parallel partial discharge testing
• Parallel partial discharge and dissipation factor measurement*
• Full MWT*

With the partial discharge testing and the dissipation factor measurement, two effective and proven methods for evaluating the ageing condition of medium-voltage cables and cable accessories have been combined in a single compact and portable device. The result is a one-step cable analysis with early detection and localization of weak points through a PD measurement, in addition to the evaluation of dielectric ageing based on the dissipation factor values. The ability to perform partial discharge and dissipation factor measurements simultaneously save a lot of time and leads to increased efficiency during inspection of the entire cable network. The simultaneous monitoring of TD values and PD activities also helps detect hidden faults (e.g. moist joints). Light, robust. and portable: PD-TaD 62 is ideal for mobile use in the field. The device and accessories are convenient to transport in robust transport cases.

This combination of methods is called Full MWT and provides significantly more information than the cable test alone. While the cable test shows whether the cable system can withstand a load over a specified test duration, the dissipation factor measurement enables an evaluation of the condition of the cable insulation. Moreover, partial discharge testing shows and locates the PD faults precisely. The highlight of MWT is the condition-based test duration: Provided it is permitted, the test duration can be shortened, which in turn lowers costs. This way, the cable is only exposed to the increased test voltage for the required duration.

VLF truesinus® - A voltage shape for all methods and method combinations

VLF truesinus® is the only voltage shape that enables both the reliable voltage tests as well as precise dissipation factor measurements and partial discharge testing. Unlike other voltage shapes, the VLF truesinus® voltage is load-independent, symmetrical and continuous. This is a prerequisite for high precision as well as reproducibility and comparability of measurement results.