On-line partial discharge monitor

Power Diagnostix’s ICMmonitor is a measurement system for permanent on-line partial discharge (PD) monitoring of medium and high voltage assets. It continuously monitors the condition of the insulation system of medium and high voltage (MV and HV) assets and gives the ability to analyse the acquired data. The in-depth analysis of the trending information delivered by the ICMmonitor enables defects detection in an early state and prevents costly failures.

The ICMmonitor combines three devices into one instrument: A spectrum analyser, an acoustic detector, and a partial discharge (PD) monitor. The combination of spectrum analyser and PD detector greatly expands the measurement possibilities when analysing the insulation systems in a noisy environment. Thus, the ICMmonitor offers continuous PD on-line monitoring and excellent measurement results, even with a large amount of electrical noise.

With the monitoring web server function (MWS) we can remotely access the ICMmonitor instrument and see topical information on the asset’s condition. Additionally, we can receive an email notification in the case of system errors.

The ICMmonitor can be used for monitoring the following assets:

  • Power transformers
  • Motors
  • Generators
  • Cable systems  

Standard features of the ICMmonitor are:

  • PD spectrum analysis for the selection of frequency bands with less disturbances, resulting in an improved signal-to-noise ratio.
  • A built-in four-channel multiplexer offers scanning of three-phase systems or multiple sensors, with each measurement channel separately configurable.
  • Effective noise gating for blocking phase-stable or phase-independent noises
  • Automatic data acquisition and storing for trend analysis, alarming, and reporting
  • UHF measurements