Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Daning Zhang"'
Publikováno v:
IET Generation, Transmission & Distribution, Vol 18, Iss 17, Pp 2847-2859 (2024)
Abstract Due to the limitations imposed by urban power grid outages for maintenance, on‐line harmonic current detection technology for distribution network cables is expected to become an effective supplement to traditional offline diagnostic metho
Externí odkaz:
https://doaj.org/article/4257b147e9ce4a398cc19159888e0bd4
Publikováno v:
AIP Advances, Vol 14, Iss 7, Pp 075019-075019-11 (2024)
SF6 gas insulated transformers (GITs) are extensively utilized in underground substations within densely populated areas of large- and medium-sized cities, praised for their excellent non-flammability and operational reliability. However, the aging c
Externí odkaz:
https://doaj.org/article/7ad4e5f1f5a94b35865429f8f051ebd6
Publikováno v:
IET Generation, Transmission & Distribution, Vol 17, Iss 17, Pp 3789-3800 (2023)
Abstract Epoxy‐impregnated paper transformer bushings are prone to water absorption due to the presence of water‐attracting moieties in the cellulose chemical structure and epoxy resin, leading to moisture‐induced insulation defects. To underst
Externí odkaz:
https://doaj.org/article/4c2e00d8bd50443497d39ecaeebbd4ec
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 965-972 (2023)
The number of cables in the distribution system is extremely huge, but there are some cables with thinner conductors in the middle section, which may threaten the safety of the system. At present, there is no effective detection method for such probl
Externí odkaz:
https://doaj.org/article/b96c93e57de24bc988a902ed8d7756e7
Publikováno v:
AIP Advances, Vol 13, Iss 4, Pp 045212-045212-12 (2023)
Frequency Domain Spectroscopy (FDS) is widely used to estimate oil–paper insulation. The high moisture and long aging change the FDS characteristics of the insulating oil–paper, so normalization processing is required. Still, the choice of single
Externí odkaz:
https://doaj.org/article/d7d5a2e7fd0d4b4f9c8c45de94d91f66
Publikováno v:
IET Science, Measurement & Technology, Vol 15, Iss 6, Pp 517-526 (2021)
Abstract In recent years, frequency domain spectroscopy (FDS) is often used to evaluate oil paper insulation state in power transformer bushing. But it is still very difficult to evaluate the moisture content accurately and quickly. In order to solve
Externí odkaz:
https://doaj.org/article/772aa5599e3f4b39a57f14fbe2e4467c
Autor:
Daning Zhang, Lulin Xu, Wenrui Tian, Haibao Mu, Huanmin Yao, Haoxiang Zhao, Jie Tian, Guan-Jun Zhang
Publikováno v:
IEEE Transactions on Industrial Electronics. :1-11
Publikováno v:
International Journal of Pharmacology. 18:1026-1037
Autor:
Haoxiang Zhao, Haibao Mu, Daning Zhang, Björn Baumeier, Huanmin Yao, Guangzhi Guo, Guanjun Zhang
Publikováno v:
Journal of Applied Physics, 132(21):215104. American Institute of Physics
Cellulose insulating paper is widely used in the power industry for its good electrical insulating properties. Moisture sharply increases its conductivity, which directly leads to the weakening of insulation performance and greatly increases the risk
Autor:
Ning Ding, Zhaojie Liang, Zhao Haoxiang, Daning Zhang, Tian Jie, Wu Yinan, Guan-Jun Zhang, Hai-Bao Mu
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 28:1153-1161
Frequency Domain Spectroscopy (FDS) is a powerful tool to study the dielectric properties of oil-paper insulation, which is widely used under high electric field strength. The motion of charge carriers under high electric field strength will cause ne