Dépouillements

The importance of experience sharing as part of smart conditioning monitoring / Su, C.Q. in IEEE electrical insulation magazine, Vol. 31 N° 1 (Janvier-Février 2015) 

Public ISBD [article]  in IEEE electrical insulation magazine > Vol. 31 N° 1 (Janvier-Février 2015) . - pp. 6 - 11 Titre : The importance of experience sharing as part of smart conditioning monitoring : a case study Type de document : texte imprimé Auteurs : Su, C.Q., Auteur ; Woo, W.L., Auteur Année de publication : 2015 Article en page(s) : pp. 6 - 11 Note générale : Electrical insulation Langues : Français (fre) Mots-clés : XLPE  insulation  Condition  monitoring  Power  cable  insulation Résumé : This article presents a case study of the failures due to a serious design mistake of several transmission cables rated 110 kV and above in three utilities (A, B, and C) located in different countries. Utility A encountered the problem in the 1990s and solved it by modifying the cable design. However, the cable contractor to utility B was not aware of the problem encountered by utility A and its successful solution, and three 230-kV crosslinked polyethylene (XLPE) cables operated by utility B failed in the early 2000s. Recently, a few 220-kV cables operated by utility C were found to have the same problem, but again the relevant cable contractor was not aware of the design error and the solution. Clearly, there is an urgent need for utilities to share their operation and maintenance experiences as part of smart CM. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6996673&filter%3DAND% [...] [article] The importance of experience sharing as part of smart conditioning monitoring : a case study [texte imprimé] / Su, C.Q., Auteur ; Woo, W.L., Auteur . - 2015 . - pp. 6 - 11. Electrical insulation Langues : Français (fre) in IEEE electrical insulation magazine > Vol. 31 N° 1 (Janvier-Février 2015) . - pp. 6 - 11 Mots-clés : XLPE  insulation  Condition  monitoring  Power  cable  insulation Résumé : This article presents a case study of the failures due to a serious design mistake of several transmission cables rated 110 kV and above in three utilities (A, B, and C) located in different countries. Utility A encountered the problem in the 1990s and solved it by modifying the cable design. However, the cable contractor to utility B was not aware of the problem encountered by utility A and its successful solution, and three 230-kV crosslinked polyethylene (XLPE) cables operated by utility B failed in the early 2000s. Recently, a few 220-kV cables operated by utility C were found to have the same problem, but again the relevant cable contractor was not aware of the design error and the solution. Clearly, there is an urgent need for utilities to share their operation and maintenance experiences as part of smart CM. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6996673&filter%3DAND% [...]

The DC inclined-plane tracking and erosion test and the role of inorganic fillers in silicone rubber for DC insulation / Ghunem, R. A. in IEEE electrical insulation magazine, Vol. 31 N° 1 (Janvier-Février 2015) 

Public ISBD [article]  in IEEE electrical insulation magazine > Vol. 31 N° 1 (Janvier-Février 2015) . - pp. 12 - 21 Titre : The DC inclined-plane tracking and erosion test and the role of inorganic fillers in silicone rubber for DC insulation Type de document : texte imprimé Auteurs : Ghunem, R. A., Auteur ; Jayaram, S. H., Auteur ; Cherney, E. A., Auteur Année de publication : 2015 Article en page(s) : pp. 12 - 21 Note générale : Electrical insulation Langues : Français (fre) Mots-clés : Insulator  testing  Polymer  insulators  Silicone  rubber  insulatorsWear  testing Résumé : The first polymer insulator for AC transmission lines was developed in the late 1950s. This insulator consisted of a flexibilized epoxy resin weathershed cast onto a fiberglass rod, and field trials on a 138-kV line took place in 1959. Insulators failed almost immediately on energization due to severe tracking and erosion of the bisphenol-A epoxy material, which was later, through inclined-plane tests, shown to be inherently unsuitable for use in outdoor insulation [1]. This article describes a study of the DC dry-band arcing mechanism as a foundation for the development of a standard DC inclined-plane test and its employment in the evaluation of silicone-rubber housing composites for outdoor DC insulation. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6996674&filter%3DAND% [...] [article] The DC inclined-plane tracking and erosion test and the role of inorganic fillers in silicone rubber for DC insulation [texte imprimé] / Ghunem, R. A., Auteur ; Jayaram, S. H., Auteur ; Cherney, E. A., Auteur . - 2015 . - pp. 12 - 21. Electrical insulation Langues : Français (fre) in IEEE electrical insulation magazine > Vol. 31 N° 1 (Janvier-Février 2015) . - pp. 12 - 21 Mots-clés : Insulator  testing  Polymer  insulators  Silicone  rubber  insulatorsWear  testing Résumé : The first polymer insulator for AC transmission lines was developed in the late 1950s. This insulator consisted of a flexibilized epoxy resin weathershed cast onto a fiberglass rod, and field trials on a 138-kV line took place in 1959. Insulators failed almost immediately on energization due to severe tracking and erosion of the bisphenol-A epoxy material, which was later, through inclined-plane tests, shown to be inherently unsuitable for use in outdoor insulation [1]. This article describes a study of the DC dry-band arcing mechanism as a foundation for the development of a standard DC inclined-plane test and its employment in the evaluation of silicone-rubber housing composites for outdoor DC insulation. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6996674&filter%3DAND% [...]

Electrolytic capacitors, 1890 to 1925: early history and basic principle / Both, J. in IEEE electrical insulation magazine, Vol. 31 N° 1 (Janvier-Février 2015) 

Public ISBD [article]  in IEEE electrical insulation magazine > Vol. 31 N° 1 (Janvier-Février 2015) . - pp. 22 - 29 Titre : Electrolytic capacitors, 1890 to 1925: early history and basic principle Type de document : texte imprimé Auteurs : Both, J., Auteur Année de publication : 2015 Article en page(s) : pp. 22 - 29 Note générale : Electrical insulation Langues : Français (fre) Mots-clés : Electrolytic  capacitors Résumé : This first of three articles on electrolytic-capacitor technology places the technology in a broad historical context and traces the technology from the 1880s to about 1925, when a patent was submitted for the modern form of electrolytic capacitor. The second article will trace the development of modern "e-caps". En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6996675&filter%3DAND% [...] [article] Electrolytic capacitors, 1890 to 1925: early history and basic principle [texte imprimé] / Both, J., Auteur . - 2015 . - pp. 22 - 29. Electrical insulation Langues : Français (fre) in IEEE electrical insulation magazine > Vol. 31 N° 1 (Janvier-Février 2015) . - pp. 22 - 29 Mots-clés : Electrolytic  capacitors Résumé : This first of three articles on electrolytic-capacitor technology places the technology in a broad historical context and traces the technology from the 1880s to about 1925, when a patent was submitted for the modern form of electrolytic capacitor. The second article will trace the development of modern "e-caps". En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6996675&filter%3DAND% [...]

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