Results 71 to 80 of about 2,002,992 (126)
Finite-difference time-domain simulation of partial discharges in a gas insulated switchgear
High Voltage, 2016 It is important to estimate the current magnitude and charge amount of a partial discharge (PD) in a gas-insulated switchgear (GIS). In this study, electromagnetic fields generated by a PD in an 84 kV-class three-phase GIS for testing have been measured ...
BABA Yoshihiro, Naoto Nagaoka
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Transient heating of gas insulated switchgears
IEEE PES T&D 2010, 2010This paper investigates the thermal effects of short fault currents in switchgears. During short circuits, the current and temperature distribution over the cross section and even along the perimeter of the busbars and the enclosures can become non-uniform, exposing the separate contact elements of the contact systems to different temperatures.
L. Koller, B. Novak
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Testing Methods for Gas-Insulated Switchgear
IEEE Transactions on Electrical Insulation, 1986This paper presents the outline and basic concepts of insulation tests which have been contributing to GIS's steady progress in Japan. Some examples of insulation tests during developing, production, and installation stages are described. Finally, the current trends of GIS's insulation tests are described.
T. Yamauchi +3 more
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Sustainable performance of Gas-Insulated Switchgear
2012 International Conference on High Voltage Engineering and Application, 2012Modern Gas Insulated Switchgear (GIS) technology has been undergoing continual development since its introduction in the 1960's when the use of SF6 as arc extinguishing and isolating medium was first introduced, and whilst many may consider this technology as mature, there have been continuous development driven changes in GIS design, manufacture, test
Peter Glaubitz +3 more
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Application of BDS in Deformation Monitoring for Gas Insulated Switchgear
2021 IEEE 5th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2021Aiming at the problem that it is difficult to obtain the complete and timely device status information of gas-insulated switchgear for traditional methods in deformation monitoring, leading to unable to accurately control the device, which will influence the substation’s safe operation for sure, the paper proposed to use BDS independently developed by ...
LI Xiaoguang +3 more
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Gas Insulated Switchgear GIS - State of the Art
2007 IEEE Power Engineering Society General Meeting, 2007Gas insulated switchgear (GIS) is a world-wide used technology to solve the needs and requirements coming from modern power transmission and distribution systems. In this paper the development of the GIL technology is presented, design features are explained and a focus is given to the manufacturing process to show the high quality of the production of
Phil Bolin, Hermann Koch
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Determination of Sensor Position on 150 kV Gas Insulation Switchgear
2019 International Conference on Electrical Engineering and Informatics (ICEEI), 2019Gas insulated switchgear is one of the important equipment in electric power system. Gas insulated switchgear can run into a malfunction that begins with the presence of partial discharge. Various methods have been developed to detect the presence of partial discharge.
Umar Khayam +2 more
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Coupling Devices for the Detection of Partial Discharges in Gas-insulated Switchgear
IEEE Power Engineering Review, 1981Partial discharge in gas-insulated 8witchgear is indicative of serious malfunction and, otten, imminent failure. Partial discharge magnitudes range from zero to about a microcoulomb per pulse. Sources of partial discharge can be detected acoustically, electromagnetically or through gas analysis.
S.A. Boggs, G.L. Ford, R.C. Madge
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On the management of metallic particle contamination in gas insulated switchgear
IEEE Transactions on Dielectrics and Electrical Insulation, 2017Electrical insulation performance of compressed gas insulated switchgear (GIS) is adversely affected by metallic particle contaminants with a loss of up to 90% of the gas dielectric strength. Such particles play a crucial role in determining the system insulation integrity. Coating of the inside surface of GIS enclosures with a dielectric material such
S. Zhang, M. M. Morcos, K. D. Srivastava
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High voltage gas insulated switchgear: an overview
IEE Colloquium on GIS (Gas-Insulated Switchgear) at Transmission and Distribution Voltages, 1995In 1967 the first gas insulated metal-enclosed switchgear went into service in the German 110 kV network. Today GIS technology is successfully used for voltages up to 800 kV. GIS is an attractive alternative to conventional air insulated substations (AIS) because of the increased availability, reliability and the reduced life cycle costs.
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