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Online PD Testing of EHV Cables

  • 01 June 2021

Case Studies
To effectively manage their electricity networks, owners and operators around the world have a very real need to understand the condition of  their often aging Transmission and Distribution assets. Of all the  major asset classes, underground cables often have the least available condition data but at the same time have a significant impact on  network performance. One of the predominant causes of cable failure  is partial discharge (PD) and collection of PD data can help fill this information gap. This paper discusses the practicalities and application  of on-line partial discharge testing and monitoring of cables from MV  to EHV.


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