Zobrazeno 1 - 10
of 470
pro vyhledávání: '"Gordon Wilson"'
Autor:
Bozhi Cheng, Yaoxian Yang, Shuhang Shen, Zhongdong Wang, Peter Crossley, Gordon Wilson, Andrew Fieldsend‐Roxborough
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 3, Pp 265-277 (2024)
Abstract The lumped element network model has been proven to be an efficient tool for the interpretation of transformer Frequency Response Analysis. However, it is challenging to obtain parameters of the model if transformer design information is una
Externí odkaz:
https://doaj.org/article/cfbac06d3bcb4abda6b71daf2d187bf0
Autor:
Robert A. Marshall, Austin Sousa, Riley Reid, Gordon Wilson, Michael Starks, Daniel Ramos, John Ballenthin, Steven Quigley, Ron Kay, James Patton, Joseph Coombs, Judy Fennelly, Ivan Linscott, Umran S. Inan
Publikováno v:
Earth and Space Science, Vol 8, Iss 11, Pp n/a-n/a (2021)
Abstract The very low frequency (VLF) propagation mapper (VPM) is a 6U CubeSat designed to measure VLF radio waves in Low‐Earth Orbit. The science goals of the VPM mission are to measure VLF signals broadcast by the DSX mission, and to study natura
Externí odkaz:
https://doaj.org/article/6f4541ec674640fca886dd666c29b698
Autor:
Loizos Loizou, Qinghua Han, Lujia Chen, Qiang Liu, Mark Waldron, Gordon Wilson, Roberto Fernandez Bautista, Malcolm Seltzer-Grant
Publikováno v:
Energies, Vol 15, Iss 20, p 7731 (2022)
Manufacturing or assembly defects in gas-insulated equipment can introduce field enhancements that could lead to partial discharge (PD). This paper examines the PD characteristics of SF6 alternatives considered for potential application to retro-fill
Externí odkaz:
https://doaj.org/article/d23b66ff37f548c2ad0b5c28b11eb30a
Autor:
Xiaozhou Mao, Zhongdong Wang, Peter Crossley, Paul Jarman, Andrew Fieldsend-Roxborough, Gordon Wilson
Publikováno v:
High Voltage (2020)
Frequency response analysis (FRA) is regarded as the most effective technique to detect mechanical faults of transformers. Over the years, FRA measurement data have been collected by utilities into transformer asset databases. The characteristic of F
Externí odkaz:
https://doaj.org/article/43f260b9bfad4c0791f738c91f0f36a1
Autor:
Michael Keall, Kirsten Coppell, John C Spence, Sandra Mandic, Debbie Hopkins, Enrique García Bengoechea, Antoni Moore, Susan Sandretto, Christina Ergler, Anna Rolleston, Gavin Kidd, Gordon Wilson
Publikováno v:
BMJ Open, Vol 10, Iss 3 (2020)
IntroductionNatural experiments are considered a priority for examining causal associations between the built environment (BE) and physical activity (PA) because the randomised controlled trial design is rarely feasible. Few natural experiments have
Externí odkaz:
https://doaj.org/article/550b5e0dd5ca41f7b4bbae531034041f
Autor:
Michael Keall, Kirsten Coppell, John C Spence, Sandra Mandic, Debbie Hopkins, Enrique García Bengoechea, Antoni Moore, Susan Sandretto, Christina Ergler, Anna Rolleston, Gavin Kidd, Gordon Wilson
Publikováno v:
BMJ Open, Vol 10, Iss 3 (2020)
Externí odkaz:
https://doaj.org/article/8ceb969257dd491cbc6fbbfde06e3325
Publikováno v:
High Voltage (2019)
Failure of a transformer is a costly incident which can impact power system operation and result in loss of supply to customers. Transformers can fail through a number of mechanisms, one of which is from the formation of bubbles within the insulation
Externí odkaz:
https://doaj.org/article/83bf8e65d89b471f8504f70aade98a11
Publikováno v:
Energies, Vol 14, Iss 4, p 1065 (2021)
Negative and positive partial discharge inception voltages and breakdown measurements are reported in a needle-plane electrode system as a function of pressure under AC voltage for natural gases (N2, CO2, and O2/CO2), pure NovecTM gases (C4F7N and C5
Externí odkaz:
https://doaj.org/article/437be5c6241e4ec3a0b956c923ea5a35
Publikováno v:
Energies, Vol 13, Iss 7, p 1710 (2020)
AC pre-discharge currents, breakdown, and flashover voltage measurements are reported in a 10 mm needle-plane arrangement in a 4% NovecTM 4710/96% CO2 gas mixture and compared with CO2 for pressures up to 8.8 bar abs. Flashover measurements were perf
Externí odkaz:
https://doaj.org/article/e668b136de0e42219bd36f90b8f75f17
Publikováno v:
European Journal of Marketing, 2023, Vol. 58, Issue 1, pp. 313-341.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/EJM-09-2021-0701