Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Xishan Wen"'
Publikováno v:
Remote Sensing, Vol 16, Iss 11, p 1921 (2024)
Thunderstorms are a common natural phenomenon posing significant hazards to power systems, structures, and humans. With technological advancements, protection against lightning is gradually shifting from passive to active measures, which require the
Externí odkaz:
https://doaj.org/article/3e03533219784e008a1aeee27535300d
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 5246-5255 (2022)
The strong and frequent lightning activity in Guangdong, China, severely affects the safe operation of the power grid. In this study, the lightning database of Guangdong Power Grid in Foshan from 2008 to 2020 was used to compare the CG lightning acti
Externí odkaz:
https://doaj.org/article/0e09833ee1dc4268b31f58d51f918dac
Autor:
Qiang Wu, Yu Wang, Yaoping Wang, Jian Wang, Lei Lan, Yeqiang Deng, Xishan Wen, Bing Luo, Wei Xiao
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 874-883 (2022)
In order to evaluate the ablation state of the SF6 circuit breaker contacts, simulated ablation tests were carried out on the circuit breaker, and the dynamic resistance curve as a function of contact travel was measured with three levels of injected
Externí odkaz:
https://doaj.org/article/3089a6ce1c1240d78be0c810e20162fa
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 1026-1033 (2022)
The tower model is very important for the assessment of lightning protection for transmission line. The parameters of tower model mainly rely on the impulse experiments of tower. There is a difference between the current channel of the experiments an
Externí odkaz:
https://doaj.org/article/12b1ac79c24d4d008d290eafbe71f763
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 1071-1077 (2022)
The anti-pollution flashover characteristic of composite insulators is the main indicators to evaluate their electrical performance, and the pollution flashover voltage can directly characterize the anti-pollution flashover characteristics of the ins
Externí odkaz:
https://doaj.org/article/1977edadce15429cb2d2bf04053d29ca
Autor:
Xishan Wen, Chun Li, Jiahao Chen, Xuefang Tong, Hao Mei, Guangyuan Zhou, Bichuan Xu, Hailiang Lu
Publikováno v:
IET Science, Measurement & Technology, Vol 16, Iss 5, Pp 283-292 (2022)
Abstract Soil ionisation has an important influence on impulse characteristics of grounding conductor. This paper introduced improvements to an existing soil ionisation model considering the influence of electric field on the change of soil resistivi
Externí odkaz:
https://doaj.org/article/195cdeffffb946358a705c1651794db9
Publikováno v:
IET Generation, Transmission & Distribution, Vol 16, Iss 11, Pp 2287-2297 (2022)
Abstract The impulse performance of grounding electrodes highly depends on soil impulse discharge characteristics. The analysis of soil discharge dynamic process images is helpful to understand the impulse discharge mechanism of grounding electrodes.
Externí odkaz:
https://doaj.org/article/3ff590631e5f439bbb6e06c3b3dc6547
Publikováno v:
IET Science, Measurement & Technology, Vol 15, Iss 6, Pp 544-550 (2021)
Abstract Due to the impedance characteristic of conductor, the ground potential rise is different within grounding grid when impulse current is injected. When staff touches objects with different GPR at the same time, the GPD will be applied to human
Externí odkaz:
https://doaj.org/article/93b2ef26866f4649bd18278ee4bae2f3
Autor:
Maoheng Jing, Xishan Wen, Hansheng Cai, Yun Teng, Shangmao Hu, Yi Zhang, Lei Lan, Hailiang Lu
Publikováno v:
IEEE Access, Vol 8, Pp 23776-23786 (2020)
HVDC Deep-well grounding electrode covers a small area, which effectively alleviates the problem of difficulty in selecting the site of grounding electrode. Due to the small number of electrodes, each sub-electrode has to bear tens of times the curre
Externí odkaz:
https://doaj.org/article/e39606ca624147559cc3d53bbea9067f
Publikováno v:
IEEE Access, Vol 7, Pp 121395-121406 (2019)
It is significant to reveal the characteristics of voltage waveform of porcelain insulator with heavy industry pollution in flashover test. In this study, the contamination of insulator samples came from heavy industry pollution areas was measured. T
Externí odkaz:
https://doaj.org/article/e681c0794bc940978bc5b1c89f6a03ec