Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet
Space charge penetration into bulk of cable insulation is known as the cause of insulation breakdown thus affecting the cable power delivery capability. Penetration of packet-like positive space charge enhances local field and when the field increases up to 5 MV/cm before breakdown occurs. Exactly b...
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| Format: | Conference or Workshop Item |
| Language: | English |
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IEEE
2017
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| Online Access: | http://umpir.ump.edu.my/id/eprint/18661/ http://umpir.ump.edu.my/id/eprint/18661/1/Influence%20Of%20Mechanical%20Pressure%20On%20Space%20Charge.pdf |
| _version_ | 1848820728323899392 |
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| author | Amir Izzani, Mohamed Mohd Mawardi, Saari Ozaki, Ryotaro Kadowaki, Kazunori |
| author_facet | Amir Izzani, Mohamed Mohd Mawardi, Saari Ozaki, Ryotaro Kadowaki, Kazunori |
| author_sort | Amir Izzani, Mohamed |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Space charge penetration into bulk of cable insulation is known as the cause of insulation breakdown thus affecting the cable power delivery capability. Penetration of packet-like positive space charge enhances local field and when the field increases up to 5 MV/cm before breakdown occurs. Exactly before the breakdown occurs, space charge penetration seems stagnant as it is prevented to penetrate further into cathode. The generated Maxwell force is assumed to press the free volume of the insulation thus reducing the size of the free volume itself. A pulsed-electroacoustic (PEA) equipment capable to press the sample up to 5 ton is developed. Sample used in this study is a 150 μm low-density polyethylene (LDPE) sheet. The sample is stressed with positive dc voltage so that the mean applied field is equal to 1.5 MV/cm. The range of pressure applied to the sample is from 0 MPa and 32 MPa. The penetration gradually reduces with the increase of pressure. Sample pressed with 32 MPa showed the least penetration depth as little as 5 % of the sample thickness. As a comparison, space charge penetration of sample with 0 MPa pressure is as depth as 85 % of the sample thickness. This shows that space charge penetration is restricted when sample is pressed. The result obtained shows that it requires at least 24 MPa to suppress space charge penetration. |
| first_indexed | 2025-11-15T02:14:04Z |
| format | Conference or Workshop Item |
| id | ump-18661 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:14:04Z |
| publishDate | 2017 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-186612018-07-20T03:06:06Z http://umpir.ump.edu.my/id/eprint/18661/ Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet Amir Izzani, Mohamed Mohd Mawardi, Saari Ozaki, Ryotaro Kadowaki, Kazunori TK Electrical engineering. Electronics Nuclear engineering Space charge penetration into bulk of cable insulation is known as the cause of insulation breakdown thus affecting the cable power delivery capability. Penetration of packet-like positive space charge enhances local field and when the field increases up to 5 MV/cm before breakdown occurs. Exactly before the breakdown occurs, space charge penetration seems stagnant as it is prevented to penetrate further into cathode. The generated Maxwell force is assumed to press the free volume of the insulation thus reducing the size of the free volume itself. A pulsed-electroacoustic (PEA) equipment capable to press the sample up to 5 ton is developed. Sample used in this study is a 150 μm low-density polyethylene (LDPE) sheet. The sample is stressed with positive dc voltage so that the mean applied field is equal to 1.5 MV/cm. The range of pressure applied to the sample is from 0 MPa and 32 MPa. The penetration gradually reduces with the increase of pressure. Sample pressed with 32 MPa showed the least penetration depth as little as 5 % of the sample thickness. As a comparison, space charge penetration of sample with 0 MPa pressure is as depth as 85 % of the sample thickness. This shows that space charge penetration is restricted when sample is pressed. The result obtained shows that it requires at least 24 MPa to suppress space charge penetration. IEEE 2017-10 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/18661/1/Influence%20Of%20Mechanical%20Pressure%20On%20Space%20Charge.pdf Amir Izzani, Mohamed and Mohd Mawardi, Saari and Ozaki, Ryotaro and Kadowaki, Kazunori (2017) Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet. In: International Symposium on Electrical Insulating Materials, ISEIM 2017 , 11-15 September 2017 , Toyohashi Chamber of Commerce and Industry, Toyohashi; Japan. pp. 184-187.. ISBN 978-488686099-6 (Published) https://ieeexplore.ieee.org/document/8088718/ |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Amir Izzani, Mohamed Mohd Mawardi, Saari Ozaki, Ryotaro Kadowaki, Kazunori Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet |
| title | Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet |
| title_full | Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet |
| title_fullStr | Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet |
| title_full_unstemmed | Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet |
| title_short | Influence Of mechanical pressure on space charge penetration behavior in low-density polyethylene (LDPE) sheet |
| title_sort | influence of mechanical pressure on space charge penetration behavior in low-density polyethylene (ldpe) sheet |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://umpir.ump.edu.my/id/eprint/18661/ http://umpir.ump.edu.my/id/eprint/18661/ http://umpir.ump.edu.my/id/eprint/18661/1/Influence%20Of%20Mechanical%20Pressure%20On%20Space%20Charge.pdf |