Ab Ghani, Sharin and Sutan Chairul, Imran and Abu Bakar, Norazhar and Ahmad Khiar, Mohd Shahril and Zulkefli, Aminur Hazieq and Ahmad, Asimi Ana (2020) In-Service Transformer Oil Regeneration Based On Laboratory-Scale Process. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 79 (1). pp. 27-35. ISSN 2289-7879
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Abstract
This paper described in-laboratory oil regeneration process of aged transformer oil using adsorbent; Fuller’s earth. The niche of this paper is the usage of real aged transformer oil taken from an 11kV/433V in-service power transformer made by ACEC Transformer in 1986. The regeneration process is achieved by forcing a mixture of aged transformer oil and Fuller’s earth through a filter paper with the aid of a vacuum pump, hence producing reclaimed transformer oil. This oil was then inserted in an amber glass bottle, blanketed with nitrogen, tightly sealed, and labelled. To test the effectiveness of Fuller’s earth as adsorbent, parameters of Dissolved Decay Product (DDP) were measured using UV-Visible Spectrophotometer (UV-Vis) by referring to ASTM D6802. In addition, Total Acid Number (TAN) and Breakdown Voltage (BdV) measurement were carried out complying the ASTM D974 and ASTM D1816 respectively. Results of UV-Vis indicated that Fuller’s earth can adsorbed 25.24% of DDP in aged transformer oil. As the DDP decreased, TAN is 84.62% reduced while BdV increased 50%. These findings are parallel with the breakdown voltage mechanism due to acidity emergence. It is proved that Fuller’s earth is effective adsorbent for oil regeneration process.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Aged mineral oil, Regeneration, UV-visible spectrophotometer (UV-Vis), Total acid number (TAN), Breakdown voltage (BdV) |
| Divisions: | Faculty of Electrical Engineering |
| Depositing User: | Sabariah Ismail |
| Date Deposited: | 01 Jul 2021 14:58 |
| Last Modified: | 01 Jul 2021 14:58 |
| URI: | http://eprints.utem.edu.my/id/eprint/25185 |
| Statistic Details: | View Download Statistic |
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