Search

Your search keyword '"Sima, Wenxia"' showing total 343 results
Start Over Author "Sima, Wenxia" Publication Year Range Last 10 years
343 results on '"Sima, Wenxia"'

7. Duality-Based Potential Transformer Model Including Black-Box Circuit for High-Frequency Transient Simulation

Author

Peng, Daixiao, Yang, Ming, Sima, Wenxia, Chu, Jinwei, Xie, Zhicheng, Liu, Yonglai, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martin, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, and Németh, Bálint, editor

Published
2020
Full Text
View/download PDF

8. Relationship Between Electron Activation Energy Absorption and Impulse Breakdown Voltage in Polymers

Author

Jiang, Xiongwei, Sima, Wenxia, Sun, Potao, Peng, Qingjun, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martin, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, and Németh, Bálint, editor

Published
2020
Full Text
View/download PDF

9. Study on Consistency of Failure Probability Characteristics of Oil-Paper Insulation Under Different Impulse Voltages

Author

Zhang, Yu, Xie, Shijun, Jiang, Xiongwei, Ye, Lian, Zhang, Chenmeng, Sun, Potao, Mu, Zhou, Sima, Wenxia, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martin, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, and Németh, Bálint, editor

Published
2020
Full Text
View/download PDF

27. AC and Lightning Impulse Breakdown Voltage Comparative Study of Mineral Oil-Based Fe3O4, Al2O3, and TiO2 Nanofluids

Author

Chen, Qiulin, Beroual, Abderrahmane, Sima, Wenxia, and Sun, Potao

Abstract

This article deals with the comparison of ac and lightning impulse breakdown voltage (LI-BDV) of mineral oil (MO)-based Fe3O4, Al2O3, and TiO2 nanofluids (NFs) in different low concentrations. A statistical analysis that was performed to evaluate the ac breakdown voltage at different insulation failure risks using Weibull and normal distributions, and the optimal concentration of different nanoparticles (NPs) at the range of 0–0.1 g/L under ac condition was determined. At the optimal concentration, the ac breakdown voltage at 1% insulation failure risk of three kinds of NFs is improved at least 20%, and especially, for TiO2 NFs, the increment of breakdown voltage reaches 60%. The effect of NPs on the breakdown of NFs is analyzed, and the possible charge capture and release processes are proposed. This study can serve as a reference for insulation design using NF as an insulating material.

Published
2024
Full Text
View/download PDF

28. A UV-responsive mechanically robust insulating polymer that achieves intrinsic self-healing of electrical tree damage based on reversible anthracene photodimerization.

Author

Sun, Potao, Shi, Zeyan, Sima, Wenxia, Tang, Xinyu, Yuan, Tao, Yang, Ming, Xu, Hang, and Li, Zhaoping

Abstract

Microscale damage, including cracks and electrical trees, is inevitably generated in the polymer insulation materials used in the packaging of power equipment and power electronic devices during long-term operation, which leads to premature insulation failure or even widespread power outages. Self-healing insulation materials are the most promising way to solve this problem. However, the mechanical/electrical strength or the dimensional stability of the materials could be sacrificed during the repair process, which has limited their application as insulation materials. In this study, we report an intrinsic self-healing epoxy resin based on reversible anthracene photodimerization (ISEP-RAP) that remains mechanically robust while ensuring efficient healing via a reversible reaction. The damaged area is decrosslinked by 254 nm UV and thermal excitation, which accelerates the molecular chain diffusion to the damaged area to fill and repair the damaged channels. The ISEP-RAP is recrosslinked by 365 nm UV to restore the mechanical and electrical properties after self-healing. Due to the combined action of the epoxy-amine permanent crosslinking sites and the anthracene reversible crosslinking sites, high crosslinked ISEP-RAP possesses excellent tensile and dielectric strength similar to that of standard epoxy resin and a lower permittivity constant. Importantly, the decrosslinked ISEP-RAP still possesses sufficiently high strength to keep the macrostructure unchanged. ISEP-RAP achieves high-efficiency, repeatable, non-contact intrinsic self-healing of scratches and electrical trees with whole-process dimensional stability. This work provides a new method for intrinsic self-healing in mechanically robust insulation materials to eliminate microdamage with repeatability, high reliability, and high efficiency. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results