Results 241 to 250 of about 293,449 (289)
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Application of Functionally Graded Material for Solid Insulator in Gaseous Insulation System
IEEE Transactions on Dielectrics and Electrical Insulation, 2006Functionally graded materials (FGM) have spatial distribution of a material property in order to achieve efficient stress control. An application of the FGM to a solid insulator (spacer) for a gaseous insulation system, like gas insulated switchgear, is expected to improve electric field (E-field) distribution around the spacer.
M Kurimoto, S Sakuma, H Okubo
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Gaseous Insulation for High-Voltage Apparatus
Transactions of the American Institute of Electrical Engineers, 1947A group of halogenated gaseous compounds have been investigated to determine their impulse (1?x40-microsecond wave) and 60-cycle strength in uniform and nonuniform fields at pressures of 1,2, and 3 atmospheres. The scope of this investigation was confined to bare electrodes, and additional testing will be required to determine the behavior of these ...
G Camilli
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Dielectric Behaviour of Gaseous Insulation With Synthetic Air
2018 19th International Scientific Conference on Electric Power Engineering (EPE), 2018The latest research results presented in this paper deals with performance of synthetic air gaseous insulation near the limiting homogeneity. In previous published research [1] numerous tests have been performed to describe the dielectric behavior of strong inhomogeneous arrangements at various gas pressures.
Petr Martínek +2 more
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Gaseous Dielectric High Voltage Insulation for Space Applications
2008 IEEE International Vacuum Electronics Conference, 2008This paper describes a miniature high voltage power supply for space use that is comparable to a TWTA EPC. The supply uses a gaseous mixture of SF6 and N2 for bulk high voltage insulation rather than a solid dielectric (i.e., potting). Experimental breakdown data show good agreement with ionization theory after accounting for geometrical effects ...
David S. Komm, Daniel J. Hoppe
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Gaseous Conductivity Study on Silica Aerogel and Its Composite Insulation Materials
Journal of Heat Transfer, 2010 This paper presents a theoretical and experimental study on gaseous conductivity of silica aerogel and composite insulation materials. First, the insulation material samples (including silica aerogel, xonotlite-type calcium silicate, xonotlite-aerogel composite, and ceramic fiber-aerogel composite) were prepared. Next, the gaseous conductivities of the
Gaosheng Wei +3 more
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Optimization of HV Electrode Contour With the Highest Gaseous Insulation Performance
IEEE Transactions on Dielectrics and Electrical Insulation, 1997In this paper, we developed an optimization algorithm of a HV electrode contour to improve insulation performance of gas insulated power apparatus. Under the consideration of insulation performance of gaseous dielectrics, we could obtain an optimum electrode contour with the highest breakdown voltage.
H Okubo
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Aspects of PD Measurement in Hybrid Gaseous Insulation at DC Voltage
2016 International Conference on Condition Monitoring and Diagnosis (CMD), 2016The increased application of HVDC components in electrical energy systems has led to new challenges in diagnostic testing and measurement of electrical insulation. In addition to other diagnostic methods Partial Discharge (PD) diagnosis at DC voltage is currently subject to much discussion worldwide.
Jaroslav Hornak +2 more
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Gaseous Insulation: Its Importance and Need for Test Methods
1964The range of equipment applications for gaseous dielectrics, including transformers, circuit breakers, airborne electronics, and radar, has been broadened because of the development of new electronegative gases. These gases have higher breakdown voltage characteristics than air or nitrogen.
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IEEE Transactions on Electrical Insulation, 1986
Studies on gas mixtures are described over the past 15 years, Much work has been performed in universities, research institutes, and industries, to account for the synergistic effect of gas mixtures and to apply gas mixture insulation to electric power apparatus.
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Studies on gas mixtures are described over the past 15 years, Much work has been performed in universities, research institutes, and industries, to account for the synergistic effect of gas mixtures and to apply gas mixture insulation to electric power apparatus.
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Insulation Reliability - Gaseous Insulation [Dakin's Corner]
IEEE Electrical Insulation Magazine, 1987If we were to ask the question, "What is the most commonly used insulation?" the answer would have to be, "Air - a gas." Its application is so common that we may sometimes overlook its importance as an insulation material or medium in so many places: overhead power lines, spacing in household electrical appliances, numerous types of electrical ...
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