Skip Navigation LinksElimpus Corporate > Services > RF Surveys

Radiometric PD Surveys

Radiometric partial discharge (PD) surveys are a rapid, safe and cost-effective way to monitor high-voltage equipment. Surveys utilise PD location and data acquisition equipment, installed in a vehicle that can be driven around a substation, surveying all of the high-voltage equipment.

Surveys can be conducted in a few hours. Driven slowly around the substation, the sensitive antenna array passes within a few metres of all high-voltage equipment, allowing the measurement and location of even relatively small levels of PD.

When activity is found, data is recorded and compared with an extensive database of faults. We provide a detailed report for every survey, incorporating information on PD activity, photographic evidence of the source and advice on how best to proceed.

Rapid Response We can respond quickly to urgent survey requirements. Once on site, a survey can be conducted in a few hours. The associated report is usually prepared within a week of the survey date.
Self-contained There is no requirement to connect the vehicle within the substation; everything is contained within the vehicle. Using our software, the operator can monitor activity while moving. Once PD is found, the vehicle moves into different positions to pinpoint the source.
Utilises our expertise Some of the effects measured by the system will be benign (e.g.: dry-band arcing); but most PD emissions represent dielectric stresses that should not be present in high-voltage equipment. From our extensive experience in performing surveys, we are able to distinguish between benign and problematic emissions. This experience enables us to create an informed, accurate report on the survey, along with our view on how to tackle each PD issue.
Flexible - use within any overall monitoring solution Radiometric PD Surveys can be used to supplement our Elimpus1 PD detection system, by locating the source of any partial discharge activity detected by the unit. Radiometric PD Surveys are also ideal for use as part of a regular preventative maintenance schedule.