By a partial discharge test with the cable diagnostics systems PD120-2 or PDTD120-2, the dielectric condition of a medium voltage cable can be evaluated. As an expanded device PDTD120-2 comes with an integrated tan delta diagnostics system
The total weight for high voltage filter, coupling capacitor and calibrator is 59 kg. Thus the system is perfectly suitable for mobile use. For the partial discharge test a sinusoidal 0.1 Hz VLF voltage is employed, adjustable over a range of up to 120 kV peak.