Výsledky vyhledávání - "P.W.R. Smith"

Characterization of oil flow within radial cooling ducts of disc type transformer windings using particle image velocimetry

Autor: Zhongdong Wang, Muhammad Daghrah, Ch Krause, P.W.R. Smith, Qiang Liu

Publikováno v: Daghrah, M, Wang, Z, Liu, Q, Krause, C & Smith, P W R 2019, ' Characterization of Oil Flow within Radial Cooling Ducts of Disc Type Transformer Windings Using Particle Image Velocimetry ', IEEE Electrical Insulation Magazine . https://doi.org/10.1109/mei.2019.8636101

In this article, flow rate in radial cooling ducts in a disc type winding model is characterized and measured using Particle Image Velocimetry (PIV). Good seeding density and reliable image calibration are essential to obtained accurate PIV velocity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d213361706ff0dc4db6934ca2fdedabf
https://doi.org/10.1109/mei.2019.8636101

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Numerical investigation of influences of liquid types on flow distribution and temperature distribution in disc type ON cooled transformers

Autor: Zhongdong Wang, Massimo Negro, Qiang Liu, Xiang Zhang, Attila Gyore, P.W.R. Smith

Publikováno v: Zhang, X, Wang, Z, Liu, Q, Negro, M, Gyore, A & Smith, P W R 2017, Numerical investigation of influences of liquid types on flow distribution and temperature distribution in disc type ON cooled transformers . in 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL) . pp. 1-4, 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL), 25/06/17 . https://doi.org/10.1109/ICDL.2017.8124677

In this paper, dimensional analysis is adopted to study fluid flow distribution and temperature distribution in disc-type ON (oil natural) cooled transformer windings. Theoretical analysis on the thermal driving force and the pressure drop in the liq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b544baae06bffc2d34c8a034f216bbba
https://doi.org/10.1109/ICDL.2017.8124677

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Methanol and furan detections in a gas to liquid hydrocarbon oil for indicating cellulose insulation ageing

Autor: Ch Krause, Zhongdong Wang, S. Y. Matharage, P. Mavrommatis, P.W.R. Smith, Qiang Liu

Publikováno v: Matharage, B S H, Liu, Q, Wang, Z, Krause, C, Smith, P W R & Mavrommatis, P 2016, Methanol and Furan Detections in a Gas to Liquid Hydrocarbon Oil for Indicating Cellulose Insulation Ageing . in Proceedings of the 1st International Conference on Dielectrics . https://doi.org/10.1109/ICD.2016.7547527

Ageing assessment of cellulose insulation in a transformer is normally conducted through indirect measurements of chemical markers in oil. In addition to the conventional paper ageing indicator 2-FAL, methanol in oil was proposed as an additional ind

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87079e5bae04d67997758d1455c53316
https://doi.org/10.1109/icd.2016.7547527

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Partial discharge behaviour of transformer liquids and the influence of moisture content

Autor: Z. Liu, Zhongdong Wang, Paul Jarman, P.W.R. Smith, Qiang Liu, Attila Gyore, Ch Krause

Publikováno v: 2014 IEEE 18th International Conference on Dielectric Liquids (ICDL).

This study investigated the partial discharge ({PD}) behaviour of a mineral oil Gemini X, a synthetic ester Midel 7131 and a Gas-To-Liquid ({GTL}) based synthetic hydrocarbon liquid Diala S4 {ZX}-I, and examined how their {PD} behaviour can be affect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74a131611d21b4a0ffe9caf7a23f8f99
https://doi.org/10.1109/icdl.2014.6893155

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Design of experimenal setup to study factors affecting hot spot temperature in disc type winding transformers

Autor: Q. Liu, P.W.R. Smith, P. Mavrommatis, Zhongdong Wang, D. Walker, Muhammad Daghrah

Publikováno v: Scopus-Elsevier

Oil immersed power transformers have complex structures for which electrical, mechanical and thermal considerations have to be taken into account during design. To produce a reliable transformer, the thermal profile in terms of temperature for windin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4910b3448f68202472c8a18642835350
http://www.scopus.com/inward/record.url?eid=2-s2.0-84964260917&partnerID=MN8TOARS

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Lightning Impulse Breakdown Performance of an Inhibited Gas-To-Liquid (GTL) Hydrocarbon Transformer Oil

Autor: W. Lu, Zhongdong Wang, P.W.R. Smith, Qiang Liu

Publikováno v: Web of Science

In this paper, breakdown voltages and acceleration voltages of an inhibited Gas-To-Liquid (GTL) based transformer oil were investigated under both positive and negative lightning impulse voltages. A conventional inhibited mineral oil was also tested

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb84091977b3fab80f3099c51603f60c
https://publons.com/wos-op/publon/54805821/

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