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Investigation of Oil Temperature Effect on Aging Marker Content of Insulating Paper in Power Transformers, by Gas Chromatography Method | ||
| Journal of Chemical and Petroleum Engineering | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 12 دی 1403 اصل مقاله (820.73 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jchpe.2024.364585.1448 | ||
| نویسندگان | ||
| Abbas Yousefpour* 1؛ Hoda Molavi2 | ||
| 1Chemistry and Process Research Department, Niroo Research Institute, Tehran, 1466-5517 Iran | ||
| 2Chemistry and Process Research Department, Niroo Research Institute, Tehran, Iran | ||
| چکیده | ||
| Insulating paper aging of power transformers, which is a reliability factor for this equipment, can be evaluated by non-destructive methods such as measuring chemical markers’ content in transformer oil. Since the sampling temperature of oil can affect the accuracy of laboratory measurements, in this study, the correlation between novel aging marker methanol and degree of polymerization (DP) of insulating paper has been studied. Temperature correction factors have been obtained for the markers (2-Fal, water and methanol) and the correlation formula has been improved by under load transformers’ data. To optimize the calculated estimation formula, sampling from real transformer has been carried out. Various experiments have been performed on them and their results have been analyzed. The real DP was also measured for the insulating papers, sampled at the overhaul stage. The optimized model for insulating paper DP calculation using temperature corrected concentration of methanol in insulating oil has been provided in this work. | ||
| کلیدواژه‌ها | ||
| Power transformer؛ Condition monitoring؛ nondestructive evaluation؛ Chemical aging marker؛ Gas Chromatography | ||
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آمار تعداد مشاهده مقاله: 19 تعداد دریافت فایل اصل مقاله: 42 |
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