air breakdown
Measurement of Air Breakdown Voltage and Electric Field Using Standard Sphere Gap Method
... Generally, air medium is widely use as an insulating medium in different electrical power equipments as its breakdown strength is 30 ...of air breakdown voltages and electric field behaviors ...
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Effect of gap lenghts of sphere sphere electrodes on air breakdown level under lightning impulse
... on air breakdown level under lightning impulse is study and will present in this ...the breakdown voltage obtained from the study is used as an improvement in the design of any electrical ...
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Experiment And Simulation Investigation On Air Breakdown In Uniform And Non-Uniform Field Configuration
... applications, air breakdown mechanism, classical gas laws, estimation and control of electric stress and numerical methods for computation of electric field are studied and discussed in this ...
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Effect of field utilization factor on air breakdown level under lightning impulse
... Further tests on electric field have been carried out by [17]. This paper describes measurement of air breakdown voltage and electric field using standard sphere gap. The experiment is conducted at the ...
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Experimental investigation on air breakdown under lightning impulses with various electrode configurations
... of air breakdown agree with investigations on air breakdown and Govinda Raju and Hackam [5], increases almost linearly from 0.1 MPa (750 torr) to 0.25 MPa (1875 torr). This region is where the ...
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Effects of Microwave Frequency on Electron Energy Distribution Function and Air Breakdown Using the Fluid Model
... and air breakdown are investigated when the mean electron energy is below 10 ...HPM breakdown in air is demonstrated with several ...the breakdown time at low pressures predicted by the ...
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Air breakdown characteristics in rod plane and sphere plane electrode configuration under lightning impulse
... of air breakdown voltage and its effects on solid ...the air breakdown voltage experimentally in high voltage laboratory, standard diameter of 25 cm spheres are used for measurement of ...
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Analysis and Comparative Study of Theoretical and Practical Air Breakdown Voltages between Spherical Electrodes
... In the table given below the gap between the spherical electrodes varies in the range from 0.5 cm to 3.0 cm and the corresponding breakdown voltage varied from 14 kV to 80 kV. It is also observed that the increase ...
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Air breakdown characteristics in plane plane and sphere gap electrode configuration under lightning impulse
... (air breakdown) dalam konfigurasi elektrod rata-rata (plane-plane) dan sfera dibawah denyutan ...(spark breakdown) adalah peralihan pelepasan tidak kekal ke dalam pelepasan ...
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Lightning impulse tests on air breakdown level in point plane electrode configuration
... electrical breakdown characteristic of small air gap under different applied voltage has its great significance for the design of overhead line, substation equipment and various air insulated HV ...
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Air breakdown under lightning impulse with plane plane electrode
... electric breakdown strength of an air-insulated gap between two plane metal electrodes can be improved considerably by an ...electrical breakdown [1]. Therefore, electrical breakdown ...
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Effect of field utilization factor on air breakdown level under impulse lightning in point sphere electrode system
... as air, designed to allow an electric spark (or we called spark over) to pass between the conductors ...gap's breakdown voltage, a spark is formed, ionizing the gas and drastically reducing its electrical ...
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A Computational Study for the Pre-Breakdown Phenomenon within an Air Gaps
... Figure (2) shows the streamer initiation and the most growth steps between the two electrodes according to growth time when the voltage is the minimum breakdown of this air gap. The figure shows, the ...
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Numbers of Students with Disabilities Studying in Higher Education in Ireland 2013/14
... provided the fields of study of 8674 students with disabilities and the fields of study breakdown for each primary disability. Below you will find a section on the fields of study of each disability category, each ...
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Instructions
... 2. Distance between sights, 31'/2 inches. Fixed barrel, the line of sight being always constant in comparison with a "breakdown" air rifle where the fore- sight is moved every ti[r] ...
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Polarity effects on breakdown of short gaps in a point-plane topology in air
... In these tests the point electrode was energised with steadily increasing voltage of both polarities until spark breakdown occurred. Figure 1 shows the experimental design where a Glassman HVDC power supply (EH ...
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Recent developments in the international use of currencies: Towards a tripolar regime?
... Breakdown of world exports by principal region and currency: 1980, 1992 Breakdown of national exports by currency of denomination: 1980, 1992 Breakdown of national imports by currency of[r] ...
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Streamer Discharge Initiation, Growth and Branching in a 3 cm Air Gap
... Figure 4 shows the streamer initiation and growth between the two electrodes for the minimum breakdown voltage. The figure shows, the initiation of the streamer at the head of the rod because of the highest values ...
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Irretrievable Breakdown of Marriage
... irretrievable breakdown of ...irretrievable breakdown of marriage as a ground for divorce has not been incorporated statutorily so far, but if we analyze certain provisions and grounds mentioned in Section ...
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The breakdown of chlorophyll by chlorophyllase
... For the partly purified enzyme the optimum conditions for enzyme action are pH 7-7 at 250 and an acetone concentration of 40 %. When dark-grown pea seedlings with very low chlorophyllaae[r] ...
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