The dielectric condition of a medium voltage cable can be evaluated through a partial discharge test with the cable diagnostics systems PD90-2 or PD90-2/TD by b2hv.

As an expanded device PD90-2/TD comes with an integrated tan delta diagnostics system!

PD90-2 partial discharge measurement b2 Suite

The cable diagnosis system PD90-2 consists of the following units:

  • HVA90 insulation tester
  • High voltage filter
  • Coupling capacitor
  • b2 Suite® software for diagnostics and reporting
  • Set of cables and corona rings

The total weight for high voltage filter, coupling capacitor and calibrator is 39 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 90 kV peak.

Due to the following features, the PD90-2 and PD90-2/TD are the most outstanding systems of their class:

  • Measurement of the intensity of partial discharges versus time
  • Localization of faults by TDR (Time Domain Reflectometry)
  • Display of faults in the partial discharges mapping
  • Phase related depiction of partial discharges
  • b2 Suite® software for diagnostics and reporting
  • Easy to use and language selection
  • PD90-2/TD offers also integrated tan delta diagnostics

The partial discharge test is documented in the form of a ready-to-use report, containing all relevant results:

  • Calibration Pulse (in accordance with IEC 60270) and end detection
  • Background noise of the measurement arrangement
  • Partial discharges inception voltage (PDIV)
  • Partial discharges level at 1.7 Vo
  • Partial discharges extinction voltage (PDEV)

A SINGLE cable diagnostics system for various applications:

  • Cables: XLPE, PE, PILC
  • Capacitors
  • Switchgear
  • Transformers
  • Rotating machines (IEEE 433)