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Management of gas-insulated transmission lines magnetic fields
11th International Symposium on High-Voltage Engineering (ISH 99), 1999Recent worldwide attention to the harmful effects of magnetic fields emanating from power lines resulted in a growing motivation to develop methods for magnetic field mitigation aiming at reducing the possibilities of such hazards. In densely populated areas, gas-insulated transmission lines or cables offer an attractive alternative to overhead ...
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Influence of Gas-Insulated Transmission Line (GIL) on Energization Overvoltage
2018 International Conference on Power System Technology (POWERCON), 2018Energization overvoltage is very important for security and stability of power grid, and it also provides reasonable reference for insulation coordination. This article proposes the influence of GIL on energization overvoltage. Parameter characteristics for GIL are presented and analyzed in detail, which are different from that of overhead line (OHL ...
XU Wenjia, XIANG Zutao
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220 kV gas-insulated transmission line-Palexpo Geneva Switzerland
2003 IEEE Power Engineering Society General Meeting (IEEE Cat. No.03CH37491), 2004This paper describes the first application in Geneva of the second generation GIL developed using N/sub 2//SF/sub 6/ gas mixtures. An existing high-voltage overhead transmission line had to be replaced because of the extension of buildings for the Palexpo fairs. The existing 220 kV line had to be laid underground for a length of about 420 m, mainly due
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Underground Power Transmission and Gas-Insulated Transmission Lines
2023Turan Gönen, Yunhe Hou
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Steady state and transient ampacities of gas-insulated transmission lines
11th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.02CH37379), 2003This paper presents a thermal model for predicting the steady state and transient ampacities of gas-insulated transmission lines (GILs). Using the thermal model, a computer program has been formulated such that it can estimate the ampacity of a GIL for any time-varying or constant current loading and any variation in environmental conditions. Relations
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Gas insulated transmission lines (GIL): ready for the real world
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002Gas-insulated transmission lines (GIL) are a further development of the tubular conductor intended for long distances and are especially suitable for connecting conurbations to centers of power supply. They are also as "invisible" as ordinary power cables as well as having a number of other advantages.
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Optimization of a superconducting gas-insulated transmission line
IEEE Transactions on Dielectrics and Electrical Insulation, 2019Peter Cheetham +3 more
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