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Showing 1 to 11 of 11 for “"Lightning impulse"”.
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Air breakdown under lightning impulse with plane-plane electrode
… with experimental setup to get the standard impulse voltage. This lightning impulse voltage is ensured to follow the standard of BS EN 60060-1:2010. The procedure of this experiment follows the TERCO catalogue documentation. In this project, the standard plane to plane gap is used to measure …
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Lightning impulse tests on air-breakdown level in point-plane electrode configuration
… is affected by the strength of the impulse voltage. Higher gap distance between the electrodes will result higher breakdown-impulse voltage while higher breakdown-impulse voltage will produce higher field intensity.
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Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
… and sphere gap electrode configuration under lightning impulse. The breakdown in air (spark breakdown) is the transition of a non-sustaining discharge into a self�sustaining discharge. In electrical power system, high voltage power equipments are mainly subjected with spark over voltage. This …
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Effect of gap lenghts of sphere-sphere electrodes on air breakdown level under lightning impulse
Impinging jets are a best method of achieving particularly high heat transfer coefficient and are therefore employed in many engineering applications. In this study we seek to understand the mechanism of the distributed heat on the curve surface with the goal of identifying preferred methods to …
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Advanced Methodologies for High Voltage Measurements: From Composite and Combined Waveform to Uncertainty Reduction for Lightning Impulse
L'abstract è presente nell'allegato / the abstract is in the attachment
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Impulse ageing of polymeric materials
Impulse over-voltage is a common phenomenon in electric power systems. A switching impulse is created by a switching surge or local fault while a lightning impulse is due to direct lightning strike to high voltage plant such as an overhead line. Both impulse events create travelling waves in the …
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Untersuchungen zur Hochfrequenzkonditionierung von Vakuumschaltkammern
… process has been evaluated if the required lightning impulse withstand voltage can be reached reliably, on the other hand it has been investigated, how far the lightning impulse withstand voltage can be increased beyond it. It is investigated, to what extend the voltage and current …
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Effect of field utilization factor on air breakdown level under impulse lightning in point-sphere electrode system
… with an experimental setup to get the standard impulse voltage. This lightning impulse voltage is ensuring to follow the standard of BS EN 60060-1:2010. The procedure of this experiment follows the TERCO catalogue documentation. In this project, the standard point-sphere gap is use to …
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The Impact of Electrical Standards on MVDC Shipboard Power Cable Size
… made and includes the collection of recommended lightning-impulse Basic Insulation Level (BIL), the short-duration overvoltage Withstand Voltage Test and cable insulation thickness values. The collected MVAC cable design and test values are compared to each other as well as to the sole MVDC …
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Development of portable 10 stages Marx Generator
… placed in open air and they are often exposed to lightning strike as well as surge voltage. They are sustaining high surge voltage during the lightning phenomena. To achieve better protection of all such power equipments and quality power supply, these voltages should be simulated and test the …
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Impulse breakdown characteristics of SF6 and its mixtures in highly non-uniform field gaps
… University of Strathclyde to study the impulse breakdown characteristics of SF₆ and its mixtures in highly non-uniform field gaps. Of particular interest were the effects of space charge, artificial irradiation, different gas mixtures, different additive gases and different wave fronts …