用表征技术评价老化分布终点

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319) Pub Date : 1999-10-17 DOI:10.1109/CEIDP.1999.807899

J. Han, B. Lee, Yongjiu Han

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引用次数: 0

摘要

本研究采用SEM、ESCG、DSC/OIT、FTIR、NMR等表征技术对服役13年的配电终端进行可靠性评估。这些末端的表征表明，气候带表面存在微裂纹和表面老化造成的填料垩白。气象棚元素分析表明，由于少量的氧化反应，碳减少，氧增加。在氧化诱导时间和化学结构分析中，新端粒与老化端粒没有差异。从这项研究可以认为，这些终止是相对健全的，直到现在。但是，风挡材料的组成随时间和场地的不同而不同。通过成分的变化，证实了环境因素对老化的影响。

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Evaluation of aged distribution terminations by characterization techniques

This study describes the reliability assessment of 13 years service-aged distribution terminations using characterization techniques such as SEM, ESCG DSC/OIT, FTIR, NMR and so on. Characterization of these terminations revealed that the surface of weathersheds had micro-cracks and chalking of fillers by surface aging. Elemental analysis of weathersheds showed that the carbon was decreased and the oxygen was increased due to a little oxidation reaction. In the analysis of oxidation induction time and chemical structure, there were no differences between new and aged terminations. From this study it can be considered that these terminations are relatively sound up to the present. But, composition of material for weathersheds was varied with time and field site. It was confirmed that environmental factors had an effect on the aging through the composition change.

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1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319)

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