Results 91 to 100 of about 127 (124)
Some of the next articles are maybe not open access.
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
openaire +1 more source
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
openaire +1 more source
Comparison Between Suppressing Approaches of Very Fast Transients in Gas-Insulated Substations (GIS)
IEEE Transactions on Power Delivery, 2013In this paper, first transient waves in the gas-insulated substation (GIS) are analyzed and methods for suppression of very fast transients (VFTs) in GISs are introduced. For suppressing VFTs, four methods are presented, including suppression by terminal components, capacitance components, adopting a resistor-fitted disconnector, and ferromagnetic ...
Ahmad Tavakoli +3 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
2011 Annual IEEE India Conference, 2011
The Insulation Performance of Compressed Gas Insulated Switchgear and Gas Insulated Transmission Line(GITL) systems can be substantially affected by the presence and movement of metallic particle contaminants. SF 6 gas is the main mode of insulation in Gas Insulated Substations(GIS).
K. B. V. S. R. Subrahmanyam, J. Amarnath
openaire +1 more source
The Insulation Performance of Compressed Gas Insulated Switchgear and Gas Insulated Transmission Line(GITL) systems can be substantially affected by the presence and movement of metallic particle contaminants. SF 6 gas is the main mode of insulation in Gas Insulated Substations(GIS).
K. B. V. S. R. Subrahmanyam, J. Amarnath
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2023
Diego Mizette Oliz +2 more
openaire +1 more source
Diego Mizette Oliz +2 more
openaire +1 more source
An improved MCDM combined with GIS for risk assessment of multi-hazards in Hong Kong
Sustainable Cities and Society, 2023Hai-Min Lyu
exaly