Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Ian L. Hosier"'
Mineral oil is widely used as a dielectric liquid in high voltage direct-current (HVDC) converter transformers because of its excellent electrical insulating and cooling properties. Due to the low biodegradability and high fire risk of mineral oil, n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6efc2efa956f572958ec78e1a1596d3e
https://eprints.soton.ac.uk/476957/
https://eprints.soton.ac.uk/476957/
Autor:
Susmit Basu, Gary C. Stevens, I. German, Alun S. Vaughan, Nicky McAllister, Ian L. Hosier, Thomas Andritsch
Publikováno v:
IEEE Transactions on Nanotechnology. 20:794-802
The effect of improved exfoliation on the electrical properties of hexagonal boron nitride (h-BN) composites based on polyethylene and polypropylene was studied. Chemical and thermal treatments were used to obtain exfoliated h-BN which was initially
Publikováno v:
Journal of Materials Science. 55:8900-8916
The influence of water immersion and silane treatment on the AC breakdown and the complex dielectric response of polypropylene/nano-aluminium nitride (PP/nano-AlN) composites has been investigated. The as-received filler was examined to have a nanosc
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 26:1197-1203
Two polyethylene and two polypropylene blends crystallized under non-isothermal conditions were compared to a crosslinked polyethylene (XLPE) reference material. Selected blends contained a gelation agent, which forms a network structure within the m
Thermal aging was used as a tool to prepare samples of Kraft paper spanning its entire life cycle in a high voltage transformer, from new to end of life. After characterization of D Pand mechanical properties, selected samples were exposed to oil flo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbb3ce1bea4fdc7a235f8e4a5710dc64
https://eprints.soton.ac.uk/450882/
https://eprints.soton.ac.uk/450882/
Publikováno v:
2021 IEEE Electrical Insulation Conference (EIC).
Ultraviolet (UV) irradiation was used as a tool Kraft paper. Using measurements of the DP as a function of irradiation time, a theoretical model was used to predict the local value of DP in the surface layer of the paper. After characterization of th
In order to understand the aging process of paper used in high voltage transformers, transformer grade Kraft paper samples were aged in a fan oven in order to access the full range of DP values from 1100 (new) to ~200 (end of life). The absence of si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d668fe068cadcf23766de6f2558fcec
https://eprints.soton.ac.uk/442462/
https://eprints.soton.ac.uk/442462/
Publikováno v:
2020 IEEE Electrical Insulation Conference (EIC).
In view of its widespread use in cable terminations, new results pertaining to electrical aging (i.e. exposure to repeated electrical discharge events) of silicone oil are reported. A new piece of equipment allowed the discharge characteristics to be
Publikováno v:
IEEE Transactions on Nanotechnology. 16:667-676
A series of polyethylene nanocomposites was prepared utilizing aluminum nitride or alumina nano-powders with comparable morphologies. These were subsequently subjected to different conditioning regimes, namely prolonged storage in vacuum, the ambient
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 24:1698-1707
A series of nanoparticles was prepared by functionalizing a commercial nanosilica with alkylsilanes of varying alkyl tail length, from propyl to octadecyl. By using a constant molar concentration of silane, the density of alkyl groups attached to eac