Results 91 to 100 of about 127 (119)
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Gas insulated substation (GIS) for HVDC
2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.00CH37132), 2002The paper deals with the topic of a Gas Insulated Substation (GIS) optimized for HVDC. The electric field distribution of DC systems is mainly controlled by the conductivity k of the dielectric media. Surface charge accumulation leads to field distortion.
F. Messerer, W. Boeck
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Basic information on Gas Insulated Substation (GIS)
2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008This paper gives an overview about design of GIS, technologies, and worldwide experiences. The steps of technical development, stages of technical design, state of the art in the production, and quality insurance are explained with practical examples.
Phil Bolin, Hermann Koch
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Introduction and applications of GAS insulated substation (GIS)
IEEE Power Engineering Society General Meeting, 2005, 2005This tutorial is meant to present and teach about all the improvements done in the design of GIS technology and to report about the excellent experiences with GIS in other countries.
P. Bolin, H. Koch
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Exposure to electric and magnetic fields at 110 kV gas insulated substation (GIS)
IEEE/PES Transmission and Distribution Conference and Exhibition, 2003At Tampere University of Technology, the ELF electric and magnetic fields have been studied for several years. The studies have included measurements and calculations, as well as exposure assessments. In previous studies at TUT, electric and magnetic fields at 400 kV and 110 kV air insulated substations were measured.
T. Sauramaki +3 more
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Special problems in gas insulated substations (GIS) and their effects on indian power system
2012 IEEE International Conference on Power System Technology (POWERCON), 2012The increase in demand for electricity and the growing energy density in the metropolitan areas have made it necessary to extend the high voltage network right up to the consumer. Gas insulated substations provide a best solution to the above problem and have been functioning for more than 30 years around the world.
V. Aaradhi, K. Gaidhani
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Wavelet analysis used in UHF partial discharge detection in GIS [gas insulated substations]
POWERCON '98. 1998 International Conference on Power System Technology. Proceedings (Cat. No.98EX151), 2002One of the most important subjects in monitoring GIS is PD detection. The issue is that the PD signal is weak and sensitive to external noise. In this paper, the experiments of detection PD in GIS using UHF technique is described. The results show that UHF method is effective in detecting PD in GIS and avoiding the disturbance of corona.
Z.M. Li +3 more
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2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC), 2015
This paper presents the EMC (Electromagnetic Compatibility) philosophy applied to design the grounding systems of GIS Insulated Substation - GIS indoor substation. The grounding systems are characterized by the following subsystems: Main Grounding grid (60 Hz Grounding System), Equipotential Grounding grid (HF Grounding system) and Lightning Grounding ...
Marcos Tello +4 more
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This paper presents the EMC (Electromagnetic Compatibility) philosophy applied to design the grounding systems of GIS Insulated Substation - GIS indoor substation. The grounding systems are characterized by the following subsystems: Main Grounding grid (60 Hz Grounding System), Equipotential Grounding grid (HF Grounding system) and Lightning Grounding ...
Marcos Tello +4 more
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i-manager's Journal on Power Systems Engineering, 2016
Mitigation and analysis of very fast transient over voltages (VFTO) is very important in gas-insulated substations (GIS). In this paper a power transformer rating of 1500 MVA in 1000 kV GIS has been considered and different techniques for mitigation and analysis of VFTOs at the transformer are applied and the same results are analyzed by the ...
K. PRAKASAM +2 more
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Mitigation and analysis of very fast transient over voltages (VFTO) is very important in gas-insulated substations (GIS). In this paper a power transformer rating of 1500 MVA in 1000 kV GIS has been considered and different techniques for mitigation and analysis of VFTOs at the transformer are applied and the same results are analyzed by the ...
K. PRAKASAM +2 more
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Solutions of essential problems of gas insulated systems for substations (GIS) and lines (GIL)
Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Cat. No.03CH37417), 2004GIS and GIL are applied since several decades and proved to be very reliable and safe components of the power supply system. Extensive fundamental research was necessary for the development of the technology. Out of countless problems three are chosen to demonstrate the numerous phenomena, which had to be investigated. These are the flashover to ground
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Approaches for Suppressing of Lightning Overvoltage in the Gas-Insulated Substation (GIS)
2010 Asia-Pacific Power and Energy Engineering Conference, 2010Ahmad Tavakoli +2 more
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