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Laboratory and field partial discharge measurement in HVDC power cables

Seltzer-Grant, Malcolm and Giussani, Riccardo and Siew, W H and Corr, Edward and Hu, Xiao and Zhu, Minan and Judd, Martin and Reid, Alistair and Neumann, Alex and Awodola, Joseph (2015) Laboratory and field partial discharge measurement in HVDC power cables. In: JICABLE 2015, 2015-06-21 - 2015-06-25, Palais des Congrès de Versailles.

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Abstract

A range of experimental and field measurements of partial discharge (PD) activity under high voltage direct current (HVDC) conditions have been conducted with the goal of developing effective monitoring techniques for PD in HVDC cables and ancillary equipment, particularly in offshore renewable energy HVDC grid installations. Laboratory measurements on insulation test objects and cross linked polyethylene (XLPE) cable samples have been conducted to better understand the characteristics of PD activity under direct current (DC) stress in comparison with AC. In addition, long-term PD measurements carried out at both an HVDC cable aging laboratory and an in-service HVDC interconnector circuit are presented together with a description of the monitoring system architecture.