Recently updated on July 2nd, 2024 at 02:22 pm<\/p>","protected":false},"excerpt":{"rendered":"
The application of natural esters in power transformers as alternative insulating fluids to mineral oil is becoming an increasingly effective way to overcome safety and environmental issues. However, the degradation mechanisms of the ester-paper insulation system and its related diagnostic methods are still poorly studied. Therefore, the potential of making frequency domain spectroscopy (FDS) a suitable diagnostic tool for assessing the condition of solid insulation systems in esters remains a research topic.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1324,1408,1377],"targets":[1317],"pubblicazioni_tipologie":[778],"class_list":["post-188859","pubblicazioni","type-pubblicazioni","status-publish","hentry","tag-electricity-network-en","tag-measurement-transformers","tag-monitoring-and-control","targets-research","pubblicazioni_tipologie-paper-en"],"acf":{"dont_show_hompage":true,"projects":{"ID":188405,"post_author":"93","post_date":"2024-06-13 15:10:12","post_date_gmt":"2024-06-13 13:10:12","post_content":"","post_title":"Resilience and Security for Energy Systems","post_excerpt":"The goal of the project is to increase the security and resilience of the energy system in the face of greater environmental threats due to climate change, through the development of tools to support institutions and operators and the definition of an optimal set of actions to be adopted for this purpose.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"resilience-and-security-for-energy-systems","to_ping":"","pinged":"","post_modified":"2024-07-02 10:30:30","post_modified_gmt":"2024-07-02 08:30:30","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/resilience-and-security-for-energy-systems\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
A preliminary study on the dielectric response at different frequencies of the solid insulation system of transformers in mineral oil and natural esters was conducted. Frequency domain spectroscopy (FDS) measurements were performed on new samples of scaled model windings with solid insulation dried in vapor phase when impregnated with three different insulating oils: an uninhibited naphthenic mineral oil and two typical natural esters for transformers. As solid insulation, two different types of insulation paper were used (standard Kraft paper and thermally upgraded Kraft paper).<\/p>\n
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Comparative FDS results indicate that the dielectric response curves of Kraft paper and thermally upgraded Kraft (TUK) paper samples overlap when impregnated with the same type of insulating oil. This confirms that the new papers exhibit the same dielectric behavior when the same drying pretreatment is applied. However, for the same solid insulation in different insulating oils, the higher water affinity of esters compared to mineral oil significantly influences the dielectric dissipation loss at low frequencies.<\/p>\n","scarica_file":false,"link_estreno":[{"link_text":"Download Publication","link":"https:\/\/ieeexplore.ieee.org\/document\/9830924"}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2022-06-02","autori":"L. De Maria, L. Cice, J. Borghetto(RSE S.p.A.), A. Saccone (Tamini Trasformatori Srl) ","destinazione":"21st IEEE International Conference on Dielectric Liquids \u2013 ICDL2022, May 29 - June 2, 2022","rif_rse":"21008844"},"satellite_post_url":""},"yoast_head":"\n