Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application
Dielectric materials; Electric impedance measurement; Insulating materials; Oil shale; Thermal aging; Thermal insulation; Ageing temperature; Alternating current; Coconut oil; Dielectric dissipation factors; Insulation paper; Physico-chemical measurements; Refined , bleached , and deodorized; Relati...
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2023
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my.uniten.dspace-238652023-05-29T14:52:33Z Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application Mohamad N.A. Azis N. Jasni J. Kadir M.Z.A.A. Yunus R. Yaakub Z. 57192066472 56120698200 25632671500 25947297000 6603243672 56602940600 Dielectric materials; Electric impedance measurement; Insulating materials; Oil shale; Thermal aging; Thermal insulation; Ageing temperature; Alternating current; Coconut oil; Dielectric dissipation factors; Insulation paper; Physico-chemical measurements; Refined , bleached , and deodorized; Relative permittivity; Palm oil This paper presents a sealed ageing study of palm oil (PO) and coconut oil (CO) in the presence of insulation paper. The type of PO under study is refined, bleached, and deodorized palm oil (RBDPO) olein. Three different variations of RBDPO and one sample of CO are aged at temperatures of 90 �C, 110 �C, and 130 �C. The properties of RBDPO and CO as well as paper under ageing are then analysed through dielectric and physicochemical measurements. It is found that the effect of ageing is not significant on the alternating current (AC) breakdown voltages and relative permittivities of RBDPO and CO. There is a slight increment trend of the resistivity for CO, while for all of the RBDPO, the resistivity slightly decreases as the ageing progresses. Only CO shows an apparent reduction of the dielectric dissipation factor. Throughout the ageing time, the acidities of all of the RBDPO and CO remain at low level, while the moisture in oils decreases. The tensile index (TI) of the papers for all of the RBDPO and CO retain more than 50% of the TI. A significant increment of the paper ageing rates of all of the RBDPO and CO is observed at an ageing temperature of 130 �C. � 2018 by the authors. Final 2023-05-29T06:52:32Z 2023-05-29T06:52:32Z 2018 Article 10.3390/ma11040532 2-s2.0-85044651239 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044651239&doi=10.3390%2fma11040532&partnerID=40&md5=ae16516a9b7bddf9c45257dc79be3566 https://irepository.uniten.edu.my/handle/123456789/23865 11 4 532 All Open Access, Gold, Green MDPI AG Scopus |
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| description |
Dielectric materials; Electric impedance measurement; Insulating materials; Oil shale; Thermal aging; Thermal insulation; Ageing temperature; Alternating current; Coconut oil; Dielectric dissipation factors; Insulation paper; Physico-chemical measurements; Refined , bleached , and deodorized; Relative permittivity; Palm oil |
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57192066472 |
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57192066472 Mohamad N.A. Azis N. Jasni J. Kadir M.Z.A.A. Yunus R. Yaakub Z. |
| format |
Article |
| author |
Mohamad N.A. Azis N. Jasni J. Kadir M.Z.A.A. Yunus R. Yaakub Z. |
| spellingShingle |
Mohamad N.A. Azis N. Jasni J. Kadir M.Z.A.A. Yunus R. Yaakub Z. Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application |
| author_sort |
Mohamad N.A. |
| title |
Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application |
| title_short |
Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application |
| title_full |
Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application |
| title_fullStr |
Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application |
| title_full_unstemmed |
Ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application |
| title_sort |
ageing study of palm oil and coconut oil in the presence of insulation paper for transformers application |
| publisher |
MDPI AG |
| publishDate |
2023 |
| _version_ |
1806424392859648000 |
| score |
13.18916 |