Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation
<p dir="ltr">Partial discharge (PD) is a widespread phenomenon instigated in power transformer (PT) insulation systems. PDs are triggered by voids that vary in size and position within the PT insulation. The electrical characteristics of those damaging, PD-causing cavities must be we...
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| مؤلفون آخرون: | , , , , , |
| منشور في: |
2025
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إضافة وسم
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| _version_ | 1864513534218469376 |
|---|---|
| author | Sayed Mohammad Kameli (22467040) |
| author2 | Abdelaziz Abuelrub (22467043) Mohammad AlShaikh Saleh (22467046) Shady S. Refaat (16864269) Ali Ghrayeb (16864266) Haitham Abu-Rub (16855500) Marek Olesz (16888752) |
| author2_role | author author author author author author |
| author_facet | Sayed Mohammad Kameli (22467040) Abdelaziz Abuelrub (22467043) Mohammad AlShaikh Saleh (22467046) Shady S. Refaat (16864269) Ali Ghrayeb (16864266) Haitham Abu-Rub (16855500) Marek Olesz (16888752) |
| author_role | author |
| dc.creator.none.fl_str_mv | Sayed Mohammad Kameli (22467040) Abdelaziz Abuelrub (22467043) Mohammad AlShaikh Saleh (22467046) Shady S. Refaat (16864269) Ali Ghrayeb (16864266) Haitham Abu-Rub (16855500) Marek Olesz (16888752) |
| dc.date.none.fl_str_mv | 2025-05-05T06:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1109/ojim.2025.3555323 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Analysis_of_Partial_Discharges_in_Oil-Impregnated_Transformer_Paper_Insulation_and_PET-G_Insulation/30405796 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Electrical engineering Dielectric breakdown high-voltage techniques insulation partial discharges power transformer Vectors Windings atmospheric modeling Solid modeling Analytical models Three-dimensional displays Finite element analysis |
| dc.title.none.fl_str_mv | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Partial discharge (PD) is a widespread phenomenon instigated in power transformer (PT) insulation systems. PDs are triggered by voids that vary in size and position within the PT insulation. The electrical characteristics of those damaging, PD-causing cavities must be well understood, to accelerate the development of advanced PD detection techniques. Thus, the impact of varying the radius and position of spherical air voids on the characteristics of PDs in PTs is examined using a 3-D finite element analysis (FEA) model designed in COMSOL Multiphysics. The spherical voids are positioned between two windings of a 512 kV, three-phase (3 φ ) PT. The peak electric field (EF) and aggregate energy in the FEA model are used in conjunction with laboratory measurements of the apparent discharge magnitude, for detailed analysis of Polyethylene Terephthalate Glycol (PET-G)-based cylindrical voids with different heights. Simulations demonstrate that the inception of PD activity in the PT model occurs for spherical voids with a radius exceeding 1 mm. Furthermore, the most severe PDs occur within the press-board insulation, adjacent to the uppermost part of the innermost windings. Experiments demonstrate that a significant increase in PD activity was observed for PET-G-based cylindrical voids with heights exceeding 1 mm.</p><h2>Other Information</h2><p dir="ltr">Published in: IEEE Open Journal of Instrumentation and Measurement<br>License: <a href="https://creativecommons.org/licenses/by/4.0/deed.en" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1109/ojim.2025.3555323" target="_blank">https://dx.doi.org/10.1109/ojim.2025.3555323</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_e8a2658a57c49cbfe343081cbef7ba0d |
| identifier_str_mv | 10.1109/ojim.2025.3555323 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/30405796 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G InsulationSayed Mohammad Kameli (22467040)Abdelaziz Abuelrub (22467043)Mohammad AlShaikh Saleh (22467046)Shady S. Refaat (16864269)Ali Ghrayeb (16864266)Haitham Abu-Rub (16855500)Marek Olesz (16888752)EngineeringElectrical engineeringDielectric breakdownhigh-voltage techniquesinsulationpartial dischargespower transformerVectorsWindings atmospheric modelingSolid modelingAnalytical modelsThree-dimensional displaysFinite element analysis<p dir="ltr">Partial discharge (PD) is a widespread phenomenon instigated in power transformer (PT) insulation systems. PDs are triggered by voids that vary in size and position within the PT insulation. The electrical characteristics of those damaging, PD-causing cavities must be well understood, to accelerate the development of advanced PD detection techniques. Thus, the impact of varying the radius and position of spherical air voids on the characteristics of PDs in PTs is examined using a 3-D finite element analysis (FEA) model designed in COMSOL Multiphysics. The spherical voids are positioned between two windings of a 512 kV, three-phase (3 φ ) PT. The peak electric field (EF) and aggregate energy in the FEA model are used in conjunction with laboratory measurements of the apparent discharge magnitude, for detailed analysis of Polyethylene Terephthalate Glycol (PET-G)-based cylindrical voids with different heights. Simulations demonstrate that the inception of PD activity in the PT model occurs for spherical voids with a radius exceeding 1 mm. Furthermore, the most severe PDs occur within the press-board insulation, adjacent to the uppermost part of the innermost windings. Experiments demonstrate that a significant increase in PD activity was observed for PET-G-based cylindrical voids with heights exceeding 1 mm.</p><h2>Other Information</h2><p dir="ltr">Published in: IEEE Open Journal of Instrumentation and Measurement<br>License: <a href="https://creativecommons.org/licenses/by/4.0/deed.en" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1109/ojim.2025.3555323" target="_blank">https://dx.doi.org/10.1109/ojim.2025.3555323</a></p>2025-05-05T06:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1109/ojim.2025.3555323https://figshare.com/articles/journal_contribution/Analysis_of_Partial_Discharges_in_Oil-Impregnated_Transformer_Paper_Insulation_and_PET-G_Insulation/30405796CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/304057962025-05-05T06:00:00Z |
| spellingShingle | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation Sayed Mohammad Kameli (22467040) Engineering Electrical engineering Dielectric breakdown high-voltage techniques insulation partial discharges power transformer Vectors Windings atmospheric modeling Solid modeling Analytical models Three-dimensional displays Finite element analysis |
| status_str | publishedVersion |
| title | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation |
| title_full | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation |
| title_fullStr | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation |
| title_full_unstemmed | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation |
| title_short | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation |
| title_sort | Analysis of Partial Discharges in Oil-Impregnated Transformer Paper Insulation and PET-G Insulation |
| topic | Engineering Electrical engineering Dielectric breakdown high-voltage techniques insulation partial discharges power transformer Vectors Windings atmospheric modeling Solid modeling Analytical models Three-dimensional displays Finite element analysis |