The insulating ingredient of the traditional transformer is a mineral oil with low combustibility and biodegradability. As a result, it is unsuitable for current and future transformer applications. Furthermore, finding fossil fuels is becoming increasingly difficult. As a result of the aforementioned limitations, there is a need to look for a replacement shielding oil. This study analysed the crucial characteristics of two biodegradable oils – namely, olive and palm oils – against worldwide standards. In addition, a 1 kVA transformer was subjected to a load test using olive and palm oils in place of traditional insulating solutions to assess their practical feasibility. The authors also looked into the technical feasibility of making a percentage-based blend. According to study results, vegetable oil is a choice superior to mineral oil for electrical and fire protection. However, the density of vegetable oil is substantially higher than that of mineral oil. As a result, the cooling tube of a transformer must be carefully considered throughout its construction. Vegetable oils also have a higher concentration of lipids with a higher molecular weight. The load test revealed that palm oil performs better than mineral oil and olive oil as a liquid dielectric. Furthermore, palm oil with a higher concentration of mineral oil provides properties superior to those of others.

中文翻译：

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变压器用新型绿色液体电介质的可行性分析

传统变压器的绝缘成分是矿物油，具有低可燃性和可生物降解性。因此，它不适合当前和未来的变压器应用。此外，寻找化石燃料变得越来越困难。由于上述限制，需要寻找替代屏蔽油。这项研究根据全球标准分析了两种可生物降解油（即橄榄油和棕榈油）的关键特性。此外，还使用橄榄油和棕榈油代替传统绝缘解决方案对 1 kVA 变压器进行了负载测试，以评估其实际可行性。作者还研究了制作基于百分比的混合物的技术可行性。根据研究结果，在电气和消防方面，植物油是优于矿物油的选择。然而，植物油的密度远高于矿物油。因此，变压器的冷却管在其整个构造过程中必须仔细考虑。植物油还含有较高浓度的脂质和较高的分子量。负载测试表明，棕榈油作为液体电介质的性能优于矿物油和橄榄油。此外，矿物油浓度较高的棕榈油具有优于其他油的特性。