Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Jingang Su"'
Publikováno v:
HighTech and Innovation Journal, Vol 5, Iss 3, Pp 603-613 (2024)
In our increasingly electrified society, electricity has become indispensable to both production and daily life. However, high-load electric energy transmission presents inherent safety risks. To ensure the secure transportation of electric energy, l
Externí odkaz:
https://doaj.org/article/579b0a9571e74eb9b8ff58ac5154fd07
Autor:
Yunqi Xing, Jiahao Liu, Jingang Su, Junwei Zha, Guochang Li, Ze Guo, Xiaozhen Zhao, Mengjia Feng
Publikováno v:
High Voltage, Vol 9, Iss 2, Pp 429-439 (2024)
Abstract During the operation of high‐voltage cables, external stress and residual stress can affect the aggregated structure of insulating materials and lead to significant deterioration in their electrical performance. To investigate the evolutio
Externí odkaz:
https://doaj.org/article/c080fb7409534de3a53e867edd13e036
Publikováno v:
Sensors, Vol 24, Iss 17, p 5843 (2024)
High-voltage cables are the main arteries of urban power supply. Cable accessories are connecting components between different sections of cables or between cables and other electrical equipment. The stress in the cold shrink tube of cable accessorie
Externí odkaz:
https://doaj.org/article/c541465af4924ae5b6b1e89e893766e9
Publikováno v:
High Voltage, Vol 8, Iss 5, Pp 977-985 (2023)
Abstract Power cable defect detection and location is a crucial aspect in power asset maintenance. Impedance spectrum measurement can be used as a non‐destructive tool for cable monitoring. Defects from overheating and moisture ingress are investig
Externí odkaz:
https://doaj.org/article/246a98e0284a44f7ba881a3bc24245ae
Publikováno v:
Energies, Vol 17, Iss 16, p 4007 (2024)
Due to their compact structure and low laying cost, three-core power cables are widely used for power distribution networks. The three-phases of such cables are distributed symmetrically with a 120° shift to each other. Phase current is an important
Externí odkaz:
https://doaj.org/article/2533857085ac4b1592b379167131eef5
Publikováno v:
Sensors, Vol 24, Iss 8, p 2528 (2024)
The state detection of power cables is very important to ensure the reliability of the power supply. Traditional sensors are mostly based on electric field detection. The operation is complex, and its efficiency needs to be improved. This paper optim
Externí odkaz:
https://doaj.org/article/702e6ae50f20436da6a75a1afe9b3dbb
Publikováno v:
IEEE Access, Vol 8, Pp 54009-54018 (2020)
The Joule heat produced by the current in conductor decreases in the radial direction, producing a temperature gradient in the insulation. This existing temperature gradient can affect the electrical tree phenomenon in insulation materials because of
Externí odkaz:
https://doaj.org/article/4cb1f5ca7ce24f41819a31ad4adbe114
Publikováno v:
IEEE Access, Vol 8, Pp 114413-114421 (2020)
The electrical tree initiation and propagation behaviors are a key issue for the polyethylene-based cable insulation. This paper focuses on the effect of crystalline morphology on electrical tree growth characteristics of high-density and low-density
Externí odkaz:
https://doaj.org/article/601671fd777c40abad5e3cadc12214ae
Publikováno v:
Energies, Vol 15, Iss 21, p 8295 (2022)
The crosslinked polyethylene (XLPE) cable safety is affected by environmental factors and artificial defects during operation. This work proposes an improved locating method based on broadband impedance spectrum (BIS) to locate local defects in XLPE
Externí odkaz:
https://doaj.org/article/c32662a5f21247da8743a67c69ce7072
Publikováno v:
IEEE Access, Vol 7, Pp 47273-47281 (2019)
HVDC converters can generate harmonic voltage, which distorts the DC voltage quality and threatens epoxy resin insulation reliability. In this paper, the electrical tree growth was investigated in epoxy resin under harmonic superimposed DC voltage. T
Externí odkaz:
https://doaj.org/article/57e0b09e0a85425e86940aa23a2f46a8