PDS Insight™ Machines

A New Solution for Detecting Partial Discharge in Rotating Machines

The PDS Insight™ Machines is the latest advance in handheld on-line partial discharge (OLPD) technology especially developed for testing rotating machines using pre-installed high voltage coupling capacitors (HVCC). This cutting edge test unit is supplied with a dedicated asset management tablet application – the OLPD Manager™ app.
The PDS Insight™ Machines measures PD levels, PD pulse count and cumulative PD activity across the 50/60 Hz power cycle to enable the severity of any partial discharge activity to be assessed. By combining four types of PD sensor (HVCC, TEV, HFCT and AA), the unit is suitable for the OLPD testing of rotating machines (above 3.3 kV), most types of in-service medium voltage (MV) cables and plant and OLPD surveying of outdoor high voltage (HV) switchyards. The handheld unit stores all measurement data on its internal memory that is then synchronised via Bluetooth® to the OLPD Manager™ app on the supplied 10.1” Android Tablet PC for analysis, benchmarking and trending of results.


  • Compatible with four OLPD sensors: HVCC, HFCT, and in-built TEV & AA.
  • Detects PD activity in the stator windings of motors and generators (HVCC), electromagnetic radiation from PD in metal-clad plant (TEV), current impulses from PD in cables and accessories (HFCT), and ultrasonic radiation from PD into air from airinsulated switchgear and other plant (AA).
  • Combines PD Level, PD Pulse Count and Cumulative PD Activity measurements across the 50/60Hz cycle.
  • Supplied with a Smart Docking Station for charging, data download and function checking of the unit.
  • Onboard data storage for quick testing and Bluetooth® communication to the Android™ Tablet PC for post-test data analysis, benchmarking and trending.
  • All measurements can be downloaded into a CSV file to enable report writing and analysis.
  • The peak graph recorded with the HVPD PDS Insight™ Machines can be displayed and recalled on the tablet.
  • Supplied with Headphones. 
  • Multiple language software.
“The PDS Insight™ Machines unit will support our customers in testing motors and generators in a more cost-effective way. The unit connects to pre-installed coupling capacitor sensors, which ultimately eliminates the need for an outage during periodic testing.”

— Dr Malcolm Seltzer-Grant, HVPD’s Technical Director
“Solving problems for our customers plays an important role in our product development. The PDS Insight™ Machines unit creates a new standard for OLPD handheld technology which supports customer needs in the rotating machines market. By combining four types of PD sensors: HVCC, HFCT, TEV and AA it is the only handheld unit on the market with the functionality to take PD measurements on rotating machines in addition to cables, switchgear and transformers.”

— Rachel Stratton, HVPD’s Commercial Director