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Gas and solid insulation in HVDC gas insulated switchgear
2017 IEEE Conference on Energy Internet and Energy System Integration (EI2), 2017With the development of high voltage directly current (DC) transmission technique, DC gas insulated switchgear (GIS) is attracting more and more attentions. DC GIS has the advantages of compact size, high reliability and interchangeability. Compared with alternating current (AC), the electric field distribution of the DC GIS insulation system depends ...
Jianying Zhong +6 more
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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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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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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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Development of 800 kV gas-insulated switchgear
IEEE Transactions on Power Delivery, 1992An 800 kV gas-insulated switchgear, with a capacity level recognized as the largest in the world, was developed as the first development of UHV gas-insulated switchgear, and good results were obtained in the type tests for this switchgear. With the gas circuit breaker and the disconnector used in this gas-insulated switchgear, tests on a scale ...
H. Toda +5 more
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Real-time gas insulation state evaluation model of the gas insulated switchgear
2017 13th International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery (ICNC-FSKD), 2017Gas insulated switchgear (GIS) has been applied greatly in the ultra-high voltage (UHV) power grids because of its advantages of high reliability, compact structure, small footprint, low electromagnetic pollution and so on. Therefore, the real-time monitoring of its operation status is important for ensuring the reliable and safe operation of the power
Jianxia Chen +6 more
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Alternative insulation gas for medium-voltage switchgear
2016 Petroleum and Chemical Industry Conference Europe (PCIC Europe), 2016Although the contribution of SF6 (sulfur hexafluoride) emissions from gas insulated medium-voltage switchgear to man-made global warming is very small, an eco-efficient insulation gas will contribute to a reduction in the carbon footprint of the electricity grid.
Maik Hyrenbach, Sebastian Zache
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Reliability of Gas Insulated Substations and Switchgears with Traditional Insulation
Power Technology and Engineering, 2003A comparative analysis of the parameters of reliability of switchgears with SF6 and conventional insulation is performed. It is shown that the use of gas-insulated switchgears is preferable for the conditions of the power system of Russia. Ways of renovating switchgear equipment in the networks of power systems are outlined.
M. Sh. Misrikhanov +2 more
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Insulation Coordination in Gas Insulated Switchgear Against Lightning Overvoltages
1991This paper describes improved models for lightning overvoltage analysis and example results by the models. Reduction of lightning impulse withstand levels for 500 and 275kV gas insulated switchgear substations is recomended. Newly developed high performance metal oxide surge arresters are also presented.
T. Kawamurа, J. Ozawa
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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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