树脂浸渍玻璃纤维套管结构缺陷引起的变压器故障

2021 International Conference on Electrical Materials and Power Equipment (ICEMPE) Pub Date : 2021-04-11 DOI:10.1109/ICEMPE51623.2021.9509223

Dexu Zou, Linjie Zhao, Kejie Huang, Jianwei Cheng, Shuaibing Wang, W. Zhang

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引用次数: 0

摘要

介绍了550kV变压器套管的两次故障，并对故障现象进行了讨论。失效衬套为树脂浸渍玻璃纤维型，复合填充。为了找出故障原因，采用二维和三维有限元模拟对轴套的电场设计进行了验证。研究了附近接地物对套管内电场的影响。仿真结果表明，套管内屏蔽管设计不合理是造成故障的直接原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Transformer fault caused by structure defect of resin impregnated fiberglass bushing

Two faults of 550kV transformer bushing are introduced and the fault phenomenon is discussed. The failure bushing is resin impregnated fiberglass type with compound filled. In order to find the fault cause, the electric field design of bushing is examined by 2D and 3D finite element simulation. The influence of nearby earthing objects on the electric field inside the bushing is studied. Based on the simulation results, it can be concluded that the unreasonable design of the bushing internal shielding pipe is the direct cause of the fault.

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来源期刊

2021 International Conference on Electrical Materials and Power Equipment (ICEMPE)

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