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Partial Discharge Monitoring

Insulation degradation in bushings and windings is influenced by various electrical, thermal, mechanical and environmental stress factors over many years in service.

Partial discharge (PD) activity is a reliable indicator of insulation condition in transformer bushings and windings, as it is often a sign of insulation defects that can potentially cause failure.

We offer you a convenient solution for on-line temporary PD monitoring on power transformers to trend and assess PD activity over periods of time, so that you can perform additional diagnostic measurements to locate insulation defects and perform condition-based maintenance.

Expert recommends


MONTESTO 200 is a portable solution that enables you to perform temporary online partial discharge (PD) monitoring. You can use the IP65-rated solution both indoors and outdoors on various medium-voltage and high-voltage electrical assets under load to trend PD activity and assess insulation condition. Automated software features allow you to quickly and reliably detect insulation defects and locate signal sources.


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