In this paper, an introduction is presented in terms of key benefits and in-service practices for condition assessment of transformers filled with synthetic esters in contrast with mineral oil. The results of a survey of 12 transformers filled with synthetic ester are presented and discussed.

中文翻译：

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在 33 kV 及以下电压下填充合成酯的在役变压器的评估

在本文中，介绍了填充合成酯与矿物油的变压器状态评估的主要优​​势和使用实践。介绍和讨论了对 12 台充满合成酯的变压器的调查结果。