b2 electronic PD30-E - Partial Discharge Unit

General Description
© b2 electronic GmbH DHV0088 15
3.2 Partial Discharge Unit
The b2 electronic GmbH high voltage Test System PDTD-2 o󰀨ers both portable and built-in solutions for diagnostics of
medium voltage cables, rotating machines and transformers.
Diagnostics of medium and high voltage cables provides the opportunity for early detection of vulnerabilities, allowing preventative
maintenance work to be carried out before the cable fails in service. Partial Discharge diagnostics (PD) allows a precise analysis
of cables and their joints and terminations. Tan Delta diagnostics (TD) allows a clear statement about the overall dielectric
conditionofagedpolymericcablesandespeciallyanydamagebyso-called“watertrees”.
With PDTD-2 - VLF testing, PD diagnostics and TD diagnostics can be carried out simultaneously!
b2 electronic Diagnostics System PDTD-2 provides a pure sinusoidal output voltage with extremely stable frequencies. This
isapre-conditionofdirectcomparisonofPDandTDdiagnosticsresultsacrosscablesofdi󰀨erentlengths.Thecharacteristics
at ever-changing frequencies and varying output voltage waveforms provide no basis for reliable comparisons. For the 0.1 Hz
diagnosis with true sinusoidal output voltages, various standards (such as IEEE400.2-2013,..) provide clear guidelines and
procedures.