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Evaluation of Paper Insulation Condition of Distribution Transformers Based on the Concentration of 2-FAL and Methanol | ||
| مجله مهندسی برق دانشگاه تبریز | ||
| مقاله 5، دوره 52، شماره 1 - شماره پیاپی 99، فروردین 1401، صفحه 43-49 اصل مقاله (819.39 K) | ||
| نوع مقاله: علمی-پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22034/tjee.2022.15259 | ||
| نویسندگان | ||
| رضا عمادی فر1؛ نوید تقی زادگان کلانتری* 1؛ وحید بهجت1؛ رضا نجار2 | ||
| 1Department of Electrical Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran | ||
| 2Polymer Research Laboratory, Faculty of Chemistry, University of Tabriz, Tabriz, Iran | ||
| چکیده | ||
| Monitoring and evaluation of transformers are essential to prevent their insulation failure. In this paper, the use of 2-furan-carboxaldehyde (2-FAL) and methanol (MeOH) concentrations as the main products of paper insulation degradation, and insulation condition markers, has been studied. In order to study the degradation process and production of degradation products, the thermal aging process of the transformer insulation system was implemented in laboratory conditions. The results of laboratory studies show that in the early stages of degradation the amount of MeOH is significant compared to 2-FAL. Also, the estimation of the degree of polymerization (DP) in the early stages of degradation (DP>800) through MeOH concentration and with decreasing DP (DP <800) through 2-FAL concentration is closer to the real value. The results of studies performed on 35 distribution transformers confirm the production of significant amounts of MeOH in the early stages of degradation. Also, the estimated DP values for the studied transformers were obtained through 2-FAL and MeOH concentration. The results show that estimating the amount of DP through MeOH concentration is associated with a probability of error of about 9% compared to estimating DP through 2-FAL concentration. | ||
| کلیدواژه‌ها | ||
| Condition Assessment؛ Distribution transformer؛ Furans؛ Methanol | ||
| مراجع | ||
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