Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser
The color of transformer oil can be one of the first indicators determining the quality of the transformer oil and the condition of the power transformer. The current method of determining the color index (CI) of transformer oil utilizes a color comparator based on the American Society for Testing a...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Published: |
Multidisciplinary Digital Publishing Institute
2021
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/96432/ |
| _version_ | 1848862363140227072 |
|---|---|
| author | Hasnul Hadi, Muhamad Haziq Pin, Jern Ker Hui, Jing Lee Yang, Sing Leong Mahammad A., Hannan Jamaludin, Md. Zaini Mahdi, Mohd Adzir |
| author_facet | Hasnul Hadi, Muhamad Haziq Pin, Jern Ker Hui, Jing Lee Yang, Sing Leong Mahammad A., Hannan Jamaludin, Md. Zaini Mahdi, Mohd Adzir |
| author_sort | Hasnul Hadi, Muhamad Haziq |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The color of transformer oil can be one of the first indicators determining the quality of the transformer oil and the condition of the power transformer. The current method of determining the color index (CI) of transformer oil utilizes a color comparator based on the American Society for Testing and Materials (ASTM) D1500 standard, which requires a human observer, leading to human error and a limited number of samples tested per day. This paper reports on the utilization of ultra violet-blue laser at 405- and 450-nm wavelengths to measure the CI of transformer oil. In total, 20 transformer oil samples with CI ranging from 0.5 to 7.5 were measured at optical pathlengths of 10 and 1 mm. A linear regression model was developed to determine the color index of the transformer oil. The equation was validated and verified by measuring the output power of a new batch of transformer oil samples. Data obtained from the measurements were able to quantify the CI accurately with root-mean-square errors (RMSEs) of 0.2229 for 405 nm and 0.4129 for 450 nm. This approach shows the commercialization potential of a low-cost portable device that can be used on-site for the monitoring of power transformers. |
| first_indexed | 2025-11-15T13:15:50Z |
| format | Article |
| id | upm-96432 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:15:50Z |
| publishDate | 2021 |
| publisher | Multidisciplinary Digital Publishing Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-964322023-01-26T02:25:26Z http://psasir.upm.edu.my/id/eprint/96432/ Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser Hasnul Hadi, Muhamad Haziq Pin, Jern Ker Hui, Jing Lee Yang, Sing Leong Mahammad A., Hannan Jamaludin, Md. Zaini Mahdi, Mohd Adzir The color of transformer oil can be one of the first indicators determining the quality of the transformer oil and the condition of the power transformer. The current method of determining the color index (CI) of transformer oil utilizes a color comparator based on the American Society for Testing and Materials (ASTM) D1500 standard, which requires a human observer, leading to human error and a limited number of samples tested per day. This paper reports on the utilization of ultra violet-blue laser at 405- and 450-nm wavelengths to measure the CI of transformer oil. In total, 20 transformer oil samples with CI ranging from 0.5 to 7.5 were measured at optical pathlengths of 10 and 1 mm. A linear regression model was developed to determine the color index of the transformer oil. The equation was validated and verified by measuring the output power of a new batch of transformer oil samples. Data obtained from the measurements were able to quantify the CI accurately with root-mean-square errors (RMSEs) of 0.2229 for 405 nm and 0.4129 for 450 nm. This approach shows the commercialization potential of a low-cost portable device that can be used on-site for the monitoring of power transformers. Multidisciplinary Digital Publishing Institute 2021 Article PeerReviewed Hasnul Hadi, Muhamad Haziq and Pin, Jern Ker and Hui, Jing Lee and Yang, Sing Leong and Mahammad A., Hannan and Jamaludin, Md. Zaini and Mahdi, Mohd Adzir (2021) Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser. Sensors, 21 (21). pp. 1-12. ISSN 1424-8220 https://www.mdpi.com/1424-8220/21/21/7292 10.3390/s21217292 |
| spellingShingle | Hasnul Hadi, Muhamad Haziq Pin, Jern Ker Hui, Jing Lee Yang, Sing Leong Mahammad A., Hannan Jamaludin, Md. Zaini Mahdi, Mohd Adzir Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser |
| title | Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser |
| title_full | Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser |
| title_fullStr | Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser |
| title_full_unstemmed | Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser |
| title_short | Color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser |
| title_sort | color index of transformer oil: a low-cost measurement approach using ultraviolet-blue laser |
| url | http://psasir.upm.edu.my/id/eprint/96432/ http://psasir.upm.edu.my/id/eprint/96432/ http://psasir.upm.edu.my/id/eprint/96432/ |