Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions
This paper presents lightning (1.2/50 µs) breakdown voltages of palm oil (PO), coconut oil (CO) and mineral oil (MO) in a quasi-uniform sphere to sphere electric field at two gap distances. The type of PO used in this study is Refined Bleached Deodorized Palm Oil (RBDPO) Olein type. The effect of vo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15341/1/15341.pdf |
| _version_ | 1796968826613530624 |
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| author | Katim, Nurul Izzatul Akma Ishak, Mohd Taufiq Mohamad Amin, Nur Aqilah Abdul Hamid, Mardhiah Hayati Ahmad, Khairol Amali Azis, Norhafiz |
| author_facet | Katim, Nurul Izzatul Akma Ishak, Mohd Taufiq Mohamad Amin, Nur Aqilah Abdul Hamid, Mardhiah Hayati Ahmad, Khairol Amali Azis, Norhafiz |
| author_sort | Katim, Nurul Izzatul Akma |
| collection | UPM |
| description | This paper presents lightning (1.2/50 µs) breakdown voltages of palm oil (PO), coconut oil (CO) and mineral oil (MO) in a quasi-uniform sphere to sphere electric field at two gap distances. The type of PO used in this study is Refined Bleached Deodorized Palm Oil (RBDPO) Olein type. The effect of voltage polarities (positive and negative) and testing methods (rising voltage, up and down and multiple level) on the lightning breakdown performance were investigated. The results indicated that lightning breakdown voltages of CO and RBDPO are comparable to those of MO under various test conditions. The results indicated that there is no polarity effect for lightning impulse breakdown tests in a quasi-uniform field. The testing methods, including rising voltage method, up and down method and multiple level method have a notable influence on the breakdown voltages. The effect of the 50% breakdown voltage on rising voltage method, up and down method and multiple level method for RBDPO and CO is comparable to MO. The withstand voltage at 1% and 50% breakdown probabilities were obtained using the Normal distribution fitting on the cumulative probability plot of impulse shots. Based on a normal distribution fitting, withstand voltages 1% breakdown probability of POA were close to the MO. Finally, based on statistical studies and simulation using ANSYS software, the prediction formulas for breakdown voltage for larger gap distances for all samples were derived. |
| first_indexed | 2024-03-06T07:34:03Z |
| format | Article |
| id | upm.eprints-15341 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:34:03Z |
| publishDate | 2018 |
| publisher | MDPI |
| record_format | dspace |
| spelling | upm.eprints-153412019-07-08T07:28:48Z http://psasir.upm.edu.my/id/eprint/15341/ Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions Katim, Nurul Izzatul Akma Ishak, Mohd Taufiq Mohamad Amin, Nur Aqilah Abdul Hamid, Mardhiah Hayati Ahmad, Khairol Amali Azis, Norhafiz This paper presents lightning (1.2/50 µs) breakdown voltages of palm oil (PO), coconut oil (CO) and mineral oil (MO) in a quasi-uniform sphere to sphere electric field at two gap distances. The type of PO used in this study is Refined Bleached Deodorized Palm Oil (RBDPO) Olein type. The effect of voltage polarities (positive and negative) and testing methods (rising voltage, up and down and multiple level) on the lightning breakdown performance were investigated. The results indicated that lightning breakdown voltages of CO and RBDPO are comparable to those of MO under various test conditions. The results indicated that there is no polarity effect for lightning impulse breakdown tests in a quasi-uniform field. The testing methods, including rising voltage method, up and down method and multiple level method have a notable influence on the breakdown voltages. The effect of the 50% breakdown voltage on rising voltage method, up and down method and multiple level method for RBDPO and CO is comparable to MO. The withstand voltage at 1% and 50% breakdown probabilities were obtained using the Normal distribution fitting on the cumulative probability plot of impulse shots. Based on a normal distribution fitting, withstand voltages 1% breakdown probability of POA were close to the MO. Finally, based on statistical studies and simulation using ANSYS software, the prediction formulas for breakdown voltage for larger gap distances for all samples were derived. MDPI 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/15341/1/15341.pdf Katim, Nurul Izzatul Akma and Ishak, Mohd Taufiq and Mohamad Amin, Nur Aqilah and Abdul Hamid, Mardhiah Hayati and Ahmad, Khairol Amali and Azis, Norhafiz (2018) Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions. Energies, 11 (10). art. no. 2676. pp. 1-15. ISSN 1996-1073 https://www.mdpi.com/1996-1073/11/10/2676 10.3390/en11102676 |
| spellingShingle | Katim, Nurul Izzatul Akma Ishak, Mohd Taufiq Mohamad Amin, Nur Aqilah Abdul Hamid, Mardhiah Hayati Ahmad, Khairol Amali Azis, Norhafiz Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions |
| title | Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions |
| title_full | Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions |
| title_fullStr | Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions |
| title_full_unstemmed | Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions |
| title_short | Lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi-uniform field conditions |
| title_sort | lightning breakdown voltage evaluation of palm oil and coconut oil as transformer oil under quasi uniform field conditions |
| url | http://psasir.upm.edu.my/id/eprint/15341/1/15341.pdf |
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