[Poster Presentation]Study on Electric Field Distribution of Dampness Defect in Oil-paper Capacitive

Study on Electric Field Distribution of Dampness Defect in Oil-paper Capacitive
ID:132 Submission ID:63 View Protection:ATTENDEE Updated Time:2023-11-20 13:53:20 Hits:207 Poster Presentation

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Abstract
变压器套管电场模拟计算是分析套管绝缘性能的关键技术。为了充分理解变压器套管的电场分布,本文基于COMSOL仿真软件建立了126kV变压器油纸电容套管有限元模型,并基于该模型对油纸电容套管的电场分布进行了检查和分析。建立了套管主绝缘体水分缺陷仿真模型,比较研究了干湿、均匀湿和非均匀湿条件下的内部电场分布。计算结果表明:在正常干燥条件下,轴套主绝缘的电场分布均匀,当轴套主绝缘存在水分缺陷时,零筛处的径向场强度增大,随着含水率的增加,该处的径向场强度不断增加, 这对轴套的绝缘性能有影响。因此,在实际工况下,应注意保持轴套环境干燥,注意保证轴套外保温的密封性,防止进水和受潮。
Keywords
oil-paper capacitive bushing; finite element model; COMSOL; electric field distribution; the capacitor core is damp
Speaker
Binbin Wei
student Shandong University

Submission Author
Binbin Wei Shandong University
Runze Qi Shandong University
Bohao Peng Shandong University
Xiaowen Dai Shandong University
Shi Cao Shandong University
Tong Zhao Shandong University
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