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Yan-Hui Wei
Researcher at Xi'an Jiaotong University
Publications - 19
Citations - 148
Yan-Hui Wei is an academic researcher from Xi'an Jiaotong University. The author has contributed to research in topics: Partial discharge & Space charge. The author has an hindex of 8, co-authored 19 publications receiving 122 citations.
Papers
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Journal ArticleDOI
Partial discharge signals separation using cumulative energy function and mathematical morphology gradient
Ming-Xiao Zhu,Jia-Ning Zhang,Yuan Li,Yan-Hui Wei,Jianyi Xue,Junbo Deng,Hai-Bao Mu,Guan-Jun Zhang,Xian-Jun Shao +8 more
TL;DR: The proposed algorithm is effective for separating mixed PD signals initiated from multiple sources and mixed current impulse signals acquired from PD experiments on artificial multi-defect models and an on-site transformer are examined.
Journal ArticleDOI
Effect of space charge on breakdown characteristics of aged oil-paper insulation under DC voltage
TL;DR: In this paper, the effect of space charge on the breakdown characteristics of aged oil-paper insulation is investigated, and the results show that the breakdown voltage remains almost constant with thermal degradation even after homo-polarity pre-stressing.
Journal ArticleDOI
Partial discharge characteristics and trap parameters of aged oil-impregnated paper
TL;DR: In this paper, phase resolved partial discharge (PRPD) spectrograms were recorded for various partial discharge times, and the trap parameters of specimens were obtained by the thermally stimulated depolarization current (TSDC) method.
Journal ArticleDOI
A study of oil-impregnated paper insulation aged with thermal-electrical stress: PD characteristics and trap parameters
TL;DR: In this paper, phase resolved partial discharge (PRPD) spectrograms were recorded at different aging time, and the trap parameters were extracted by thermally stimulated depolarization current (TSDC) method.
Patent
System used for measuring internal space charges of oil paper insulating material
TL;DR: In this article, a system used for measuring internal space charges of an oil paper insulating material is described, which consists of an upper electrode system body and a lower electrode system.