PD-TP500A is a portable online diagnostic system which periodically monitors partial discharge in equipment such as Transformers, GIS, and Circuit Breakers etc. The PD-TP500A will detect, analyze, and find the signal source locations. With the benefit of being portable, the PD-TP500A is perfect for day to day testing or special tests on equipment which does not have a continuous on-line monitoring system.


  • Portable, use AC power source;
  • Connects to your laptop via USB port
  • Used on fully loaded and energized electrical equipment, completely non-intrusive
  • Simultaneously measures with AE (acoustic emission) via 4 sensors and electrical discharges via a clamp-on type CT. The CT is a High Frequency Current Transducer(HFCT)
  • Detects, measures and locates signal sources from PD or Arcing
  • Used on transformers, LTC's, Cooling System pumps and motors, LA's, Circuit Breakers, & Gas Insulated Substation(GIS)
  • Sensitivity = AE: 20 pC; HFCT: 5pC
Copyright © PowerPD, Inc. All Rights Reserved.