Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material
The partial discharge (PD) activity in a cavity within a solid dielectric insulation material is known to be dependent on the size, shape, and location of the cavity. These factors have a strong influence on the local electric field distribution, which directly affects PD activity and its characteri...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Institute of Electrical and Electronics Engineers
2011
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| Online Access: | http://eprints.um.edu.my/1352/1/EIM2011.pdf |
| _version_ | 1825718530730885120 |
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| author | Illias, Hazlee Azil Chen, G. Lewin, P. |
| author_facet | Illias, Hazlee Azil Chen, G. Lewin, P. |
| author_sort | Illias, Hazlee Azil |
| collection | UM |
| description | The partial discharge (PD) activity in a cavity within a solid dielectric insulation material is known to be dependent on the size, shape, and location of the cavity. These factors have a strong influence on the local electric field distribution, which directly affects PD activity and its characteristic behavior. In this work, a model for a spherical cavity within a homogeneous dielectric material was developed using finite element analysis (FEA) software. The model was used to study the influence of different cavity conditions on local electric field distribution and consequent PD activity. The study involved variation of cavity diameter and cavity location within the dielectric material. In addition, experimental measurements were undertaken using epoxy samples containing single spherical cavities of different diameters. The results verify that PD activity is influenced by the size of the cavity within the dielectric material, and the results will enable users to evaluate key PD parameters that are directly related to the electric field distribution and the physical properties of the cavity. These parameters include the PD repetition rate, maximum PD charge amplitude, and the PD inception voltage level. This study, involving comparison of experimental and simulation data, may therefore give insight into measured PD characteristics. |
| first_indexed | 2024-03-06T05:05:56Z |
| format | Article |
| id | um.eprints-1352 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:05:56Z |
| publishDate | 2011 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | um.eprints-13522019-12-06T08:32:59Z http://eprints.um.edu.my/1352/ Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material Illias, Hazlee Azil Chen, G. Lewin, P. TK Electrical engineering. Electronics Nuclear engineering The partial discharge (PD) activity in a cavity within a solid dielectric insulation material is known to be dependent on the size, shape, and location of the cavity. These factors have a strong influence on the local electric field distribution, which directly affects PD activity and its characteristic behavior. In this work, a model for a spherical cavity within a homogeneous dielectric material was developed using finite element analysis (FEA) software. The model was used to study the influence of different cavity conditions on local electric field distribution and consequent PD activity. The study involved variation of cavity diameter and cavity location within the dielectric material. In addition, experimental measurements were undertaken using epoxy samples containing single spherical cavities of different diameters. The results verify that PD activity is influenced by the size of the cavity within the dielectric material, and the results will enable users to evaluate key PD parameters that are directly related to the electric field distribution and the physical properties of the cavity. These parameters include the PD repetition rate, maximum PD charge amplitude, and the PD inception voltage level. This study, involving comparison of experimental and simulation data, may therefore give insight into measured PD characteristics. Institute of Electrical and Electronics Engineers 2011-01-31 Article PeerReviewed application/pdf en http://eprints.um.edu.my/1352/1/EIM2011.pdf Illias, Hazlee Azil and Chen, G. and Lewin, P. (2011) Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material. IEEE Electrical Insulation Magazine, 27 (1). pp. 38-45. ISSN 0883-7554 , DOI https://doi.org/10.1109/MEI.2011.5699446 <https://doi.org/10.1109/MEI.2011.5699446 >. http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5699446 10.1109/MEI.2011.5699446 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Illias, Hazlee Azil Chen, G. Lewin, P. Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material |
| title | Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material |
| title_full | Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material |
| title_fullStr | Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material |
| title_full_unstemmed | Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material |
| title_short | Modeling of Partial Discharge Activity in Spherical Cavities Within a Dielectric Material |
| title_sort | modeling of partial discharge activity in spherical cavities within a dielectric material |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.um.edu.my/1352/1/EIM2011.pdf |
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