{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T14:42:38Z","timestamp":1777128158502,"version":"3.51.4"},"reference-count":19,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2018,12,18]],"date-time":"2018-12-18T00:00:00Z","timestamp":1545091200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100010661","name":"Horizon 2020 Framework Programme","doi-asserted-by":"publisher","award":["691714"],"award-info":[{"award-number":["691714"]}],"id":[{"id":"10.13039\/100010661","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper presents a novel measuring system for partial discharge (PD) measurements in Gas Insulated Systems (GIS) using high frequency current transformers (HFCT). The system is based on the measurement of the induced PD currents in the GIS enclosure. In opposition to the existing antenna technologies that measure the radiated energy in the very high frequency\/ultra-high frequency (VHF\/UHF) range, the proposed system measures the PD conducted currents in the high frequency (HF) range and below. The foundation of the measurements together with a detailed explanation of the sensor installed conveniently at the bolts of the GIS spacer are presented. An experimental study on the current distribution in the GIS enclosure is described to evaluate the impact of the sensor on the measurements. Laboratory experiments have been performed that show the suitability of this method to properly measure particle discharges caused by corona, surface and free moving particle discharges in SF6. Discharges in the range of 1 to 4 pC have been properly measured. An analysis to evaluate the performance of the method is shown, in comparison to VHF\/UHF antenna measurements. The potential benefits of this novel technique rely on the small attenuation of PD signals in the GIS components in the HF range and sample rate reductions. Finally, a discussion on the potential applicability of present cluster and charge calculation techniques to the proposed PD GIS measurement using HFCT is presented.<\/jats:p>","DOI":"10.3390\/s18124482","type":"journal-article","created":{"date-parts":[[2018,12,18]],"date-time":"2018-12-18T11:09:21Z","timestamp":1545131361000},"page":"4482","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["A Novel Approach for Partial Discharge Measurements on GIS Using HFCT Sensors"],"prefix":"10.3390","volume":"18","author":[{"given":"Armando","family":"Rodrigo Mor","sequence":"first","affiliation":[{"name":"Electrical Sustainable Energy, Delft University of Technology, 2600 GA Delft, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis Carlos","family":"Castro Heredia","sequence":"additional","affiliation":[{"name":"Electrical Sustainable Energy, Delft University of Technology, 2600 GA Delft, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabio Andres","family":"Mu\u00f1oz","sequence":"additional","affiliation":[{"name":"Electrical Sustainable Energy, Delft University of Technology, 2600 GA Delft, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,12,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1731","DOI":"10.1109\/TDEI.2010.5658223","article-title":"Influence of disconnecting part on propagation properties of PD-induced electromagnetic wave in model GIS","volume":"17","author":"Hikita","year":"2010","journal-title":"IEEE Trans. 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