Print Email Facebook Twitter Impact of DC Voltage Enhancement on Partial Discharges in Medium Voltage Cables Title Impact of DC Voltage Enhancement on Partial Discharges in Medium Voltage Cables: An Empirical Study with Defects at Semicon-Dielectric Interface Author Shekhar, A. (TU Delft DC systems, Energy conversion & Storage; The University of Texas at Austin) Feng, Xianyong (The University of Texas at Austin) Gattozzi, Angelo (The University of Texas at Austin) Hebner, Robert E. (The University of Texas at Austin) Wardell, Douglas (The University of Texas at Austin) Strank, Shannon (The University of Texas at Austin) Mor, A. R. (TU Delft DC systems, Energy conversion & Storage) Ramirez Elizondo, L.M. (TU Delft DC systems, Energy conversion & Storage) Bauer, P. (TU Delft DC systems, Energy conversion & Storage) Date 2017-11-26 Abstract A scientific consensus is emerging on the benefits of direct current (DC) distribution in medium voltage (MV) power systems of ships and cities. At least 50% space savings and increased power transfer capacity are estimated with enhanced voltage DC operation of electric cables. The goal of this research is to contribute to developing the empirical knowledge on the insulation performance in order to validate the feasibility of such anticipated gains of DC versus alternating current (AC), and to determine the comparative impact of different operational conditions from a component engineering point of view. The partial discharge (PD) activity in cables is measured under AC and DC conditions as an indicator of insulation performance. Specifically, PDs in defects at the semicon-insulation interface are studied in terms of inception voltage, repetition rate and discharge magnitude. Empirical understanding is drawn for operating voltage and frequency dependence of the discharge behavior in such voids in the range of 10 to 20 kV and 0 to 0.1 Hz, respectively. The change in PD activity with void evolution post temperature-induced ageing process is explored Subject ACcomparisonDCdischargesmeasurementsmedium voltagePDpartial dischargesOA-Fund TU Delft To reference this document use: http://resolver.tudelft.nl/uuid:d5c2ad89-96b9-4714-a234-d77bb8f1781d DOI https://doi.org/10.3390/en10121968 ISSN 1996-1073 Source Energies, 10 (12), 1-18 Part of collection Institutional Repository Document type journal article Rights © 2017 A. Shekhar, Xianyong Feng, Angelo Gattozzi, Robert E. Hebner, Douglas Wardell, Shannon Strank, A. R. Mor, L.M. Ramirez Elizondo, P. Bauer Files PDF energies_10_01968.pdf 1.33 MB Close viewer /islandora/object/uuid:d5c2ad89-96b9-4714-a234-d77bb8f1781d/datastream/OBJ/view