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Life Time Estimation Method for the Feeder Transformers

机译：馈线变压器寿命估算方法

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摘要

In order to prevent damage and to extend the lifespan of equipment in railway power systems, it is necessary to detect early on any deterioration and to assess the residual lifespan of feeder transformers. As such a database containing information about the three main conditions affecting feeder transformers was constructed. First, load characteristics were researched to evaluate thermal deterioration. Second, analytical data of dissolved gas-in-oil was examined to evaluate damage from partial electric discharge. Third, the amount of furfural was investigated to evaluate the deterioration characteristics of insulating paper for feeder transformers. Based on the results of these investigations a lifespan estimation method for feeder transformers was developed. The validity of the estimation method was verified comparing experimental values with estimated values.
机译：为了防止损坏并延长铁路电力系统中设备的使用寿命，有必要及早发现任何劣化并评估馈线变压器的剩余使用寿命。这样就构成了一个数据库，其中包含有关影响馈线变压器的三个主要条件的信息。首先，研究了负载特性以评估热劣化。其次，检查了溶解在油中的气体的分析数据，以评估部分放电的损害。第三，研究糠醛的量以评估馈线变压器绝缘纸的劣化特性。基于这些研究的结果，开发了一种馈线变压器的寿命估算方法。比较实验值和估计值，验证了估计方法的有效性。

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