Partial Discharge Measurement and Monitoring

Partial discharge (PD) is considered one of the major contributors to the degradation and failure of insulation systems in electrical equipment. 

Compared to other dielectric diagnostic methods, off-line PD measurement and analysis and on-line PD monitoring allow you to effectively and reliably assess the insulation condition of a number of high-voltage assets at a particular point in time and throughout the service life of electrical equipment.

To detect and localize insulation defects and assess risks of equipment failure, off-line PD measurement and analysis are performed during factory acceptance, on-site commissioning and routine maintenance testing. On-line PD monitoring is performed over longer periods of time when the equipment is in service to track the development of PD activity and determine when it poses a risk to equipment reliability.

Solutions

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Partial discharge testing on power cables

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Partial discharge testing on rotating electrical machines

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Partial discharge testing on power transformers

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