Yiqi Dang, Z. Hao, Baohui Zhang, Zhengyuan Li, Hongxiang Xu, C. Yan, Wenzhe Chen, Xian Yang, Dan Zhou
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The analysis of frequency spectrum of oil pressure signal in transformer external fault
When testing transformer is under an external short circuit fault, its wall will get rapid oil pressure fluctuation. This signal changes in a certain law, and it reflects some non-electrical parameter feature of the situation of transformer external short circuit fault. Using the method of experiment testing, this article analyze a 110kV transformer's oil pressure signal feature, and get some conclusion about its harmonic distribution.
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