Technical Resources
How to Interpret Partial Discharge Test Results...
Reading a PD test result comes down to four questions, in this order: 1) Is it PD at all? (pattern, not just magnitude) 2) Where is it? (cable body, joint,...
How to Interpret Partial Discharge Test Results...
Reading a PD test result comes down to four questions, in this order: 1) Is it PD at all? (pattern, not just magnitude) 2) Where is it? (cable body, joint,...
PD Testing Equipment for Commissioning: Buildin...
Commissioning PD testing needs four functional blocks: a VLF excitation source, a calibrated PD measurement unit, a coupling capacitor / PD coupler, and a PD calibrator. Everything else — sensors, noise gating, PD mapping...
PD Testing Equipment for Commissioning: Buildin...
Commissioning PD testing needs four functional blocks: a VLF excitation source, a calibrated PD measurement unit, a coupling capacitor / PD coupler, and a PD calibrator. Everything else — sensors, noise gating, PD mapping...
Common Mistakes in On-Site PD Testing: 10 Error...
Most on-site partial discharge (PD) testing errors fall into three groups: measurement circuit errors (no calibration, poor grounding), noise errors (external interference mistaken for PD), and interpretation errors (single readings without trend, wrong test voltage, no...
Common Mistakes in On-Site PD Testing: 10 Error...
Most on-site partial discharge (PD) testing errors fall into three groups: measurement circuit errors (no calibration, poor grounding), noise errors (external interference mistaken for PD), and interpretation errors (single readings without trend, wrong test voltage, no...
High-Resistance Cable Faults: The Complete Fiel...
High-resistance faults are invisible to a standard TDR, so the field procedure follows a strict sequence: 1) identify the fault type by insulation testing, 2) pre-locate with a bridge method (non-destructive),...
High-Resistance Cable Faults: The Complete Fiel...
High-resistance faults are invisible to a standard TDR, so the field procedure follows a strict sequence: 1) identify the fault type by insulation testing, 2) pre-locate with a bridge method (non-destructive),...
Partial Discharge vs Tan Delta: Which Cable Dia...
Partial discharge (PD) testing and tan delta (dissipation factor) testing answer different questions. PD finds active defect sites — "is something discharging right now?" Tan delta measures overall insulation condition —...
Partial Discharge vs Tan Delta: Which Cable Dia...
Partial discharge (PD) testing and tan delta (dissipation factor) testing answer different questions. PD finds active defect sites — "is something discharging right now?" Tan delta measures overall insulation condition —...
Cable Commissioning Tests: The Complete Pre-Ene...
A new cable is only as good as its commissioning record. The complete pre-energization sequence is: visual inspection → insulation resistance (megger) → sheath/jacket test → VLF withstand → partial discharge...
Cable Commissioning Tests: The Complete Pre-Ene...
A new cable is only as good as its commissioning record. The complete pre-energization sequence is: visual inspection → insulation resistance (megger) → sheath/jacket test → VLF withstand → partial discharge...