“Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap”
In a gas-insulated system, when the stressed conductors are encased by a solid dielectric, the corona onset voltage (COV) over its surface increases, minimizing the corona discharge. The paper's objective is to calculate the positive COV over the surface of a solid dielectric cylinder that enca...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Ain Shams Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447923000989 |
| _version_ | 1797649642215702528 |
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| author | Mohamed I. Awaad Ahmed N. Tahoon Mahmoud M. El-Bahy |
| author_facet | Mohamed I. Awaad Ahmed N. Tahoon Mahmoud M. El-Bahy |
| author_sort | Mohamed I. Awaad |
| collection | DOAJ |
| description | In a gas-insulated system, when the stressed conductors are encased by a solid dielectric, the corona onset voltage (COV) over its surface increases, minimizing the corona discharge. The paper's objective is to calculate the positive COV over the surface of a solid dielectric cylinder that encased rod-rod gap with a common axis and by shifting the two axes a certain distance. This calls for calculating the Laplacian electric field using the charge simulation method. The streamer inception criterion is used to calculate the positive COV at the dielectric surface for surrounding gases SF6, air, CO2, N2, argon and SF6-N2 mixture. The equivalences between the COV of SF6 and the proposed SF6-N2 mixture were performed at different pressures and dielectric thicknesses to allow confident use as an alternative insulation to SF6. The electric field and COV results agree well with the previously published values calculated by software COMSOL and those measured experimentally, respectively. |
| first_indexed | 2024-03-11T15:49:34Z |
| format | Article |
| id | doaj.art-06998fc8a18b4000a3b0a0ca22c62b4a |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-03-11T15:49:34Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-06998fc8a18b4000a3b0a0ca22c62b4a2023-10-26T04:17:42ZengElsevierAin Shams Engineering Journal2090-44792023-10-011410102209“Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap”Mohamed I. Awaad0Ahmed N. Tahoon1Mahmoud M. El-Bahy2Corresponding author.; Department of Electrical Engineering, Benha Faculty of Engineering, Benha University, Benha 13511, EgyptDepartment of Electrical Engineering, Benha Faculty of Engineering, Benha University, Benha 13511, EgyptDepartment of Electrical Engineering, Benha Faculty of Engineering, Benha University, Benha 13511, EgyptIn a gas-insulated system, when the stressed conductors are encased by a solid dielectric, the corona onset voltage (COV) over its surface increases, minimizing the corona discharge. The paper's objective is to calculate the positive COV over the surface of a solid dielectric cylinder that encased rod-rod gap with a common axis and by shifting the two axes a certain distance. This calls for calculating the Laplacian electric field using the charge simulation method. The streamer inception criterion is used to calculate the positive COV at the dielectric surface for surrounding gases SF6, air, CO2, N2, argon and SF6-N2 mixture. The equivalences between the COV of SF6 and the proposed SF6-N2 mixture were performed at different pressures and dielectric thicknesses to allow confident use as an alternative insulation to SF6. The electric field and COV results agree well with the previously published values calculated by software COMSOL and those measured experimentally, respectively.http://www.sciencedirect.com/science/article/pii/S2090447923000989Rod-rod gap encased by a solid dielectric cylinderGas-insulated system (GIS)Electric field calculationCharge simulation method (CSM)Streamer inception criterionSF6-N2 mixtures |
| spellingShingle | Mohamed I. Awaad Ahmed N. Tahoon Mahmoud M. El-Bahy “Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap” Ain Shams Engineering Journal Rod-rod gap encased by a solid dielectric cylinder Gas-insulated system (GIS) Electric field calculation Charge simulation method (CSM) Streamer inception criterion SF6-N2 mixtures |
| title | “Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap” |
| title_full | “Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap” |
| title_fullStr | “Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap” |
| title_full_unstemmed | “Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap” |
| title_short | “Calculation of onset voltage of corona over a solid dielectric surface encasing rod-rod gap” |
| title_sort | calculation of onset voltage of corona over a solid dielectric surface encasing rod rod gap |
| topic | Rod-rod gap encased by a solid dielectric cylinder Gas-insulated system (GIS) Electric field calculation Charge simulation method (CSM) Streamer inception criterion SF6-N2 mixtures |
| url | http://www.sciencedirect.com/science/article/pii/S2090447923000989 |
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