Details
| Original language | English |
|---|---|
| Title of host publication | 23rd International Symposium on High Voltage Engineering, ISH 2023 |
| Publisher | Institution of Engineering and Technology |
| Pages | 345-349 |
| Number of pages | 5 |
| Volume | 2023 |
| Edition | 46 |
| ISBN (electronic) | 9781837240241, 9781837240258, 9781837240753, 9781837240814, 9781837240821, 9781837240982, 9781839539268, 9781839539923, 9781839539954 |
| Publication status | Published - 2023 |
| Event | 23rd International Symposium on High Voltage Engineering, ISH 2023 - Glasgow, United Kingdom (UK) Duration: 28 Aug 2023 → 1 Sept 2023 |
Abstract
The service life of a power transformer depends mainly on its insulation system. As the insulation system ages, the electrical and dielectric properties of the insulation decrease. High temperatures, acids and water accelerate ageing. Acids are a product of cellulose degradation and oil ageing. Cellulose degradation mainly results in polar low-molecular-weight acids, which accumulate in the paper and considered to be highly harmful. Currently, the total acid number (TAN) of the insulating oil is used to assess the condition of the insulating material. However, monitoring the acidity of the insulating paper is a more feasible method as harmful acids remain there. It is reasonable to develop a tool to monitor the acid in the paper that can be done directly, non-destructively and at a low cost. Fourier transform infrared spectroscopy (FTIR) can be used to detect changes in the chemical structure of the insulating paper and identify acids. Acids have a specific absorption peak in the spectrum and the intensity of the absorbance determines the acid concentration. For this reason, a basic functional model of an online-monitoring system was developed.
Keywords
- ACID CONTENT, CONDITION MONITORING, PAPER-OIL-INSULATION, SPECTROSCOPY
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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23rd International Symposium on High Voltage Engineering, ISH 2023. Vol. 2023 46. ed. Institution of Engineering and Technology, 2023. p. 345-349.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - DEVELOPMENT OF A SENSOR FOR MONITORING THE PAPER CONDITION USING INFRARED SPECTROSCOPY
AU - Özdemir, Büsra
AU - Wang, Yunfei
AU - Werle, Peter
N1 - Publisher Copyright: © The Institution of Engineering & Technology 2023.
PY - 2023
Y1 - 2023
N2 - The service life of a power transformer depends mainly on its insulation system. As the insulation system ages, the electrical and dielectric properties of the insulation decrease. High temperatures, acids and water accelerate ageing. Acids are a product of cellulose degradation and oil ageing. Cellulose degradation mainly results in polar low-molecular-weight acids, which accumulate in the paper and considered to be highly harmful. Currently, the total acid number (TAN) of the insulating oil is used to assess the condition of the insulating material. However, monitoring the acidity of the insulating paper is a more feasible method as harmful acids remain there. It is reasonable to develop a tool to monitor the acid in the paper that can be done directly, non-destructively and at a low cost. Fourier transform infrared spectroscopy (FTIR) can be used to detect changes in the chemical structure of the insulating paper and identify acids. Acids have a specific absorption peak in the spectrum and the intensity of the absorbance determines the acid concentration. For this reason, a basic functional model of an online-monitoring system was developed.
AB - The service life of a power transformer depends mainly on its insulation system. As the insulation system ages, the electrical and dielectric properties of the insulation decrease. High temperatures, acids and water accelerate ageing. Acids are a product of cellulose degradation and oil ageing. Cellulose degradation mainly results in polar low-molecular-weight acids, which accumulate in the paper and considered to be highly harmful. Currently, the total acid number (TAN) of the insulating oil is used to assess the condition of the insulating material. However, monitoring the acidity of the insulating paper is a more feasible method as harmful acids remain there. It is reasonable to develop a tool to monitor the acid in the paper that can be done directly, non-destructively and at a low cost. Fourier transform infrared spectroscopy (FTIR) can be used to detect changes in the chemical structure of the insulating paper and identify acids. Acids have a specific absorption peak in the spectrum and the intensity of the absorbance determines the acid concentration. For this reason, a basic functional model of an online-monitoring system was developed.
KW - ACID CONTENT
KW - CONDITION MONITORING
KW - PAPER-OIL-INSULATION
KW - SPECTROSCOPY
UR - http://www.scopus.com/inward/record.url?scp=85203352100&partnerID=8YFLogxK
U2 - 10.1049/icp.2024.0520
DO - 10.1049/icp.2024.0520
M3 - Conference contribution
AN - SCOPUS:85203352100
VL - 2023
SP - 345
EP - 349
BT - 23rd International Symposium on High Voltage Engineering, ISH 2023
PB - Institution of Engineering and Technology
T2 - 23rd International Symposium on High Voltage Engineering, ISH 2023
Y2 - 28 August 2023 through 1 September 2023
ER -