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Progress in paper degradation assessment in service-aged transformers

机译:老化变压器的纸质退化评估进展

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This paper reviews progress in paper degradation assessment in service aged transformers from four existing methods, including measurements of furans (2FAL), measurements of methanol (MeOH), analysis of dissolved gases in oil (DGA) and forensic investigation. Practical recommendations towards more reliable paper degradation assessment for in-service transformers are suggested, including a composite paper degradation assessment algorithm with design review, levels of 2-furfura and methanol, rate of change of 2-furfura and methanol, operating temperature, levels and signatures of dissolved gases, and electrical condition assessment tests.
机译:本文从四种现有方法回顾了在役变压器中纸质退化评估的进展,包括呋喃(2FAL)的测量,甲醇(MeOH)的测量,油中溶解气体的分析(DGA)和法证研究。提出了实用的建议,以实现对在役变压器进行更可靠的纸质退化评估,包括具有设计评审的复合纸质退化评估算法,2-糠醛和甲醇的含量,2-糠醛和甲醇的变化率,工作温度,含量和溶解气体的签名,以及电气状态评估测试。

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