Assessing the amount of remaining mineral oil in retrofilled transformers is vital since that presence may worsen flash and fire point of the ester and impact the transformer dielectric performance; this article proposes a new experimental methodology to quantify the ratio of mineral oil in natural esters.

中文翻译：

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天然酯加注变压器中剩余矿物油定量的新方法

评估改造变压器中剩余矿物油的量至关重要，因为矿物油的存在可能会恶化酯的闪点和燃点，并影响变压器的介电性能；本文提出了一种新的实验方法来量化天然酯中矿物油的比例。