High voltage power transformer condition assessment considering the health index value and its decreasing rate
Abstract A health index method is a useful tool for the transformer assessment condition. This method has been used in several previous studies. However, most of them have not observed the health index decreasing rate as an aspect to improve the transformer condition assessment. A health index metho...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-04-01
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| Series: | High Voltage |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/hve2.12074 |
| _version_ | 1811312969888301056 |
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| author | Winanda Riga Tamma Rahman Azis Prasojo Suwarno |
| author_facet | Winanda Riga Tamma Rahman Azis Prasojo Suwarno |
| author_sort | Winanda Riga Tamma |
| collection | DOAJ |
| description | Abstract A health index method is a useful tool for the transformer assessment condition. This method has been used in several previous studies. However, most of them have not observed the health index decreasing rate as an aspect to improve the transformer condition assessment. A health index method with different approaches is proposed, considering the values and decreasing rate to assess the transformer condition. Inspection data from in‐service and out‐of‐service 150 kV power transformers provided by the Indonesian electric company are included. The correlation between operating age and Health Index value and Health Index decreasing rate was also observed. With increasing operation age, the Health Index value tends to decrease with a correlation coefficient R 2 of 0.631. Further analysis was conducted to power transformers with historical data of 3 years or more, which showed that the tendency of the Health Index value decreasing rate is higher with older transformers. This paper also illustrates the Health Index analysis of 35 out‐of‐service transformers, resulting in a more suitable Health Index value compared to the previous approach. This study proposes the transformer risk assessment based on its health index value and the decreasing rate. |
| first_indexed | 2024-04-13T10:45:58Z |
| format | Article |
| id | doaj.art-ac85d806a2f74cc1b79628db57d3a033 |
| institution | Directory Open Access Journal |
| issn | 2397-7264 |
| language | English |
| last_indexed | 2024-04-13T10:45:58Z |
| publishDate | 2021-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | High Voltage |
| spelling | doaj.art-ac85d806a2f74cc1b79628db57d3a0332022-12-22T02:49:47ZengWileyHigh Voltage2397-72642021-04-016231432710.1049/hve2.12074High voltage power transformer condition assessment considering the health index value and its decreasing rateWinanda Riga Tamma0Rahman Azis Prasojo1Suwarno2School of Electrical Engineering and Informatics Institut Teknologi Bandung Bandung IndonesiaSchool of Electrical Engineering and Informatics Institut Teknologi Bandung Bandung IndonesiaSchool of Electrical Engineering and Informatics Institut Teknologi Bandung Bandung IndonesiaAbstract A health index method is a useful tool for the transformer assessment condition. This method has been used in several previous studies. However, most of them have not observed the health index decreasing rate as an aspect to improve the transformer condition assessment. A health index method with different approaches is proposed, considering the values and decreasing rate to assess the transformer condition. Inspection data from in‐service and out‐of‐service 150 kV power transformers provided by the Indonesian electric company are included. The correlation between operating age and Health Index value and Health Index decreasing rate was also observed. With increasing operation age, the Health Index value tends to decrease with a correlation coefficient R 2 of 0.631. Further analysis was conducted to power transformers with historical data of 3 years or more, which showed that the tendency of the Health Index value decreasing rate is higher with older transformers. This paper also illustrates the Health Index analysis of 35 out‐of‐service transformers, resulting in a more suitable Health Index value compared to the previous approach. This study proposes the transformer risk assessment based on its health index value and the decreasing rate.https://doi.org/10.1049/hve2.12074ageingcondition monitoringmaintenance engineeringpower transformer insulationpower transformer testingpower transformers |
| spellingShingle | Winanda Riga Tamma Rahman Azis Prasojo Suwarno High voltage power transformer condition assessment considering the health index value and its decreasing rate High Voltage ageing condition monitoring maintenance engineering power transformer insulation power transformer testing power transformers |
| title | High voltage power transformer condition assessment considering the health index value and its decreasing rate |
| title_full | High voltage power transformer condition assessment considering the health index value and its decreasing rate |
| title_fullStr | High voltage power transformer condition assessment considering the health index value and its decreasing rate |
| title_full_unstemmed | High voltage power transformer condition assessment considering the health index value and its decreasing rate |
| title_short | High voltage power transformer condition assessment considering the health index value and its decreasing rate |
| title_sort | high voltage power transformer condition assessment considering the health index value and its decreasing rate |
| topic | ageing condition monitoring maintenance engineering power transformer insulation power transformer testing power transformers |
| url | https://doi.org/10.1049/hve2.12074 |
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