{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:25:37Z","timestamp":1760243137287,"version":"build-2065373602"},"reference-count":23,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2015,10,13]],"date-time":"2015-10-13T00:00:00Z","timestamp":1444694400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Both in industrial as in controlled environments, such as high-voltage laboratories, pulses from multiple sources, including partial discharges (PD) and electrical noise can be superimposed. These circumstances can modify and alter the results of PD measurements and, what is more, they can lead to misinterpretation. The spectral power clustering technique (SPCT) allows separating PD sources and electrical noise through the two-dimensional representation (power ratio map or PR map) of the relative spectral power in two intervals, high and low frequency, calculated for each pulse captured with broadband sensors. This method allows to clearly distinguishing each of the effects of noise and PD, making it easy discrimination of all sources. In this paper, the separation ability of the SPCT clustering technique when using a Rogowski coil for PD measurements is evaluated. Different parameters were studied in order to establish which of them could help for improving the manual selection of the separation intervals, thus enabling a better separation of clusters. The signal processing can be performed during the measurements or in a further analysis.<\/jats:p>","DOI":"10.3390\/s151025898","type":"journal-article","created":{"date-parts":[[2015,10,14]],"date-time":"2015-10-14T02:36:30Z","timestamp":1444790190000},"page":"25898-25918","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8811-2274","authenticated-orcid":false,"given":"Jorge","family":"Ardila-Rey","sequence":"first","affiliation":[{"name":"Departamento de Ingenier\u00eda El\u00e9ctrica, Universidad T\u00e9cnica Federico Santa Mar\u00eda, Av. Vicu\u00f1a Mackenna 3939, Santiago de Chile 8940000, Chile"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1586-5931","authenticated-orcid":false,"given":"Ricardo","family":"Albarrac\u00edn","sequence":"additional","affiliation":[{"name":"Generation and Distribution Network Area. Dept. Electrical Engineering. Innovation, Technology and R&D, Boslan S.A. Consulting and Engineering, Calle de la Isla Sicilia 1, Madrid 28034, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1944-9823","authenticated-orcid":false,"given":"Fernando","family":"\u00c1lvarez","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda El\u00e9ctrica, Universidad Polit\u00e9cnica de Madrid, Ronda de Valencia 3, Madrid 28012, Spain"}]},{"given":"Aldo","family":"Barrueto","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda El\u00e9ctrica, Universidad T\u00e9cnica Federico Santa Mar\u00eda, Av. Vicu\u00f1a Mackenna 3939, Santiago de Chile 8940000, Chile"}]}],"member":"1968","published-online":{"date-parts":[[2015,10,13]]},"reference":[{"key":"ref_1","unstructured":"Willis, H., and Schrieber, R. (2013). Aging Power Delivery Infrastructures, Second Edition, Power Engineering (Willis), Taylor & Francis."},{"key":"ref_2","unstructured":"Ravi, S., and Ward, J. (2006). A Novel Approach for Prioritizing Maintenance of Underground Cables. Technical report, Power Systems Engineering Research Center (PSERC), Arizona State University."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"515","DOI":"10.1109\/TPWRD.2006.876661","article-title":"Estimation of the Lifetime of the Electrical Components in Distribution Networks","volume":"22","author":"Zhang","year":"2007","journal-title":"IEEE Trans. Power Deliv."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"James, R., and Su, Q. (2008). 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