Category Archives: Cable
Endverschluss beschädigt, aber VLF-Prüfung bestanden
By: Ben Lanz and Bill Corrente
Posted in: Workmanship, Wind, Utility, Renewable, Generation, Facility, Cable
Endverschluss beschädigt, aber VLF-Prüfung bestanden Nachdem ein Energieversorger mehrere Endverschlussdefekte hatte, erteilte er uns den Auftrag für die Inbetriebnahme von Kabelsystemen bei einem neuen Kraftwerk. Zuvor hatt... Read ArticlePD Activity Identified During Assessment of Aged Utility Cable
By: IMCORP
During the reliability assessment of aged underground residential distribution (URD) cable systems at a mid-western electric utility, one particular cable sample was found to exhibit low levels partial discharge (PD) activity. These PD sites were evi... Read ArticleVery Low Partial Discharge Values Found While Commissioning A New Wind Farm
By: IMCORP
Posted in: Workmanship, Wind, Utility, Renewable, Cable
During a recent wind farm commissioning project in the southern United States multiple defects were identified within the collector cable system. One particular cable exhibited defects in the form of very low levels of partial discharge at two times ... Read ArticleEmbedded Semicon in Insulation during Cutback at a Wind Farm
By: IMCORP
Posted in: Workmanship, Wind, Generation, Cable
The cable displayed here was compromised as a result of the misuse of an insulation-stripping tool when being installed at a wind farm. At the insulation cutback, the contractor had inadvertently cut too deep, resulting in a small slice of semi-c... Read ArticlePower Cable Damage From Backfill
By: IMCORP
Posted in: Wind, Generation, Cable, Backfill
These images show a PD site in a medium voltage power cable, part of a collector system designed and installed at a wind farm in Idaho during 2005. In the first few years of operation, the site experienced a very high collector syst... Read ArticlePower Cable Insulation Damage (Sabotage) at a Wind Farm
By: IMCORP
Posted in: Workmanship, Generation, Cable
The discovery of this medium voltage power cable defect at a site in Canada during the summer of 2006 provided an ... Read Article