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SF6 concentration sensor for gas-insulated electrical switchgear
Sensors and Actuators A: Physical, 2014Abstract The use of SF 6 -N 2 gas mixtures in gas insulated electrical switchgear (GIS) is becoming more wide-spread. This is motivated by the reduction of environmental impact associated with SF 6 emission and the increasing number of GIS located in low temperature environments where pure SF 6 cannot be employed.
Th. A. Paul +3 more
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Gas insulated switchgear for medium voltage substations
IEE Colloquium on GIS (Gas-Insulated Switchgear) at Transmission and Distribution Voltages, 1995High reliability and staff safety is the most important factor a modern medium voltage switchgear has to comply with. Together with the requirement for space-saving design, mainly in European countries, the development of switchgear models finally resulted in the most advantageous type of gas insulated switchgear.
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Development of 300/245kV, 80kA Gas Insulated Switchgear
2008 International Conference on High Voltage Engineering and Application, 2008This paper describes the results of the development and validation of the 300/245 kV, 80 kA GIS based on conventional 300/245 kV, 63 kA GIS and conventional free standing GCB, and describes the design approach of intake puffer type ES. The performance of this GIS satisfied all type tests and all special specification tests.
Shinichiro Nakauchi +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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Discharge-Based Diagnostics in Polluted Gas-Insulated Switchgear
2018 Twentieth International Middle East Power Systems Conference (MEPCON), 2018One of the most serious problems that cause the failure of the Gas insulated substations is the presence of contaminating particles inside its compartments as it adversely affects the withstand capability of the system. In this paper diagnosis of particles presence based on the detection of time-to-discharge is presented. This is based on the fact that
Mohamed H. Elmashtoly, Hussein I. Anis
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Advanced Metal Oxide Surge Arrester for Gas Insulated Switchgear (GIS)
IEEE Power Engineering Review, 1984SF6 gas has outstanding dielectric strength and heat transfer property. This suggests that zinc oxide (ZnO) elements whose value of E in E-J characteristic is higher than the value of the elements used in a porcelain type arrester is suitable to metal enclosed metal oxide surge arresters (MOA) for gas insulated switchgears (GIS). Several kinds of newly
M. Imataki +4 more
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Breakdown voltage-time characteristics and insulation testing of gas insulated switchgear
IEEE Transactions on Dielectrics and Electrical Insulation, 2008There is not sufficient data on the breakdown voltage-time characteristics for gas insulated swiitchgear (GIS) at power-frequency voltages, especially in the long-term region, for complete insulation specifications to be developed. This paper gives voltage- time breakdown characteristics for a 72-kV GIS at power-frequency voltages, both for clean ...
Shigemitsu Okabe +2 more
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Transient electric field analysis of disk insulator for Gas insulated switchgear
2013 2nd International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST), 2013Fourier transform are used on the very fast transient overvoltage (VFTO) discretion, different spectral components of transient voltage waveform are achieved. The mathematical model of the transient electric field is deduced considering dielectric polarization loss and displacement current.
Zhenxin Geng, Xin Lin, Binge Si
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Influence of Arc-Decomposed SF6 Gas on Cast EPOXY Insulators for Gas Insulated Switchgears
IEEE Transactions on Power Apparatus and Systems, 1979Reactions between arc decomposed gases and cast epoxy insulators used in gas insulated switchgears are very important and interesting phenomena to be investigated for engineers and designers.
Shotaro Tominaga +2 more
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F-Gas Free Switchgear - A real Alternative to SF6 Gas Insulated Switchgear
2023 IEEE Power & Energy Society General Meeting (PESGM), 2023Karthik Reddy Venna +2 more
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