Results 211 to 220 of about 70,024 (254)
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2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014
The objective of this paper is to investigate the influence of a high-frequency high voltage impulses conditioning on the inrush current interruption phenomena with considering the inrush currents. In this paper, six 7.2 kV vacuum interrupters (VIs) were used. First of all, six VIs were all conditioned by a several hundreds of batches of high-frequency
Yingyao Zhang +4 more
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The objective of this paper is to investigate the influence of a high-frequency high voltage impulses conditioning on the inrush current interruption phenomena with considering the inrush currents. In this paper, six 7.2 kV vacuum interrupters (VIs) were used. First of all, six VIs were all conditioned by a several hundreds of batches of high-frequency
Yingyao Zhang +4 more
openaire +1 more source
2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2016
The objective of this paper is to experimentally investigate the distribution of high-voltage and high-frequency (HVHF) impulse breakdown sparks in conditioned contact surface. A 10 kV commercial vacuum interrupter (VI) is used, which is machined with a glass envelope and an observing window on the main shield.
Xiaoshe Zhai +6 more
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The objective of this paper is to experimentally investigate the distribution of high-voltage and high-frequency (HVHF) impulse breakdown sparks in conditioned contact surface. A 10 kV commercial vacuum interrupter (VI) is used, which is machined with a glass envelope and an observing window on the main shield.
Xiaoshe Zhai +6 more
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IEEE Transactions on Dielectrics and Electrical Insulation, 2015
The objective of this paper is to investigate the effect of a high-frequency high-voltage impulse conditioning technique on the inrush current interruption phenomena. In this paper, the inrush current interruption phenomena referred to the actual interruption and the currentless period following interruption. First, Six 7.2 kV vacuum interrupters (VIs)
Yingyao Zhang +4 more
openaire +1 more source
The objective of this paper is to investigate the effect of a high-frequency high-voltage impulse conditioning technique on the inrush current interruption phenomena. In this paper, the inrush current interruption phenomena referred to the actual interruption and the currentless period following interruption. First, Six 7.2 kV vacuum interrupters (VIs)
Yingyao Zhang +4 more
openaire +1 more source
Insulation performance of vacuum interrupter after high frequency voltage impulses conditioning
2015 3rd International Conference on Electric Power Equipment – Switching Technology (ICEPE-ST), 2015The conditioning is widely used to enhance the insulation performance of vacuum interrupter, such as current conditioning and spark conditioning. In this paper, we compared the conditioning performance between traditional ones and high frequency voltage impulses conditioning method with their conditioning parameters, such as conditioning voltage ...
Weigang Feng +3 more
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High Latitude Magnetic Impulse Events (MIEs): Polarization Peculiarities and Excitation Conditions
Izvestiya, Physics of the Solid Earth, 2018Polarization characteristics (polarization type, ellipticity e, tilt angle τ of the polarization ellipse’s major axis) of high-latitude magnetic impulse events (MIEs) observed at the latitude of the dayside polar cusp are studied. It is established that all impulses are elliptically polarized, being right-polarized in 43% of cases (R-type) and left ...
N. A. Kurazhkovskaya, B. I. Klain
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High density impulsive Noise removal using decision based iterated conditional modes
2015 International Conference on Signal Processing, Computing and Control (ISPCC), 2015Salt and Pepper Noise is very common during transmission of images through a noisy channel or due to impairment in camera sensor module. For noise removal, methods have been proposed in literature, with two stage cascade various configuration. These methods, can remove low density impulse noise, are not suited for high density noise in terms of visible
Arjun Singh Chauhan, Vineet Sahula
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Simulation of Earthing Systems Under High Impulse Conditions
2006 IEEE 8th International Conference on Properties and applications of Dielectric Materials, 2006Several models of earthing systems under high impulse conditions, which are in satisfactory agreement to the experimental results, have been proposed in previous studies [1-11]. However, these models do not consider for the effects of current rise time as the voltage levels were increased.
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2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2016
Vacuum Interrupters (VI's) which are the product of choice at medium voltages for interruption of fault currents are being actively considered and applied at transmission levels also. As the voltage levels increases, so do the stresses. Hence, the high voltage withstand performance of the vacuum interrupter becomes extremely significant and demands ...
Sandeep Kulkarni +3 more
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Vacuum Interrupters (VI's) which are the product of choice at medium voltages for interruption of fault currents are being actively considered and applied at transmission levels also. As the voltage levels increases, so do the stresses. Hence, the high voltage withstand performance of the vacuum interrupter becomes extremely significant and demands ...
Sandeep Kulkarni +3 more
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Journal of Physics D: Applied Physics, 2023
Abstract We report several effects found in reactive bipolar high-power impulse magnetron sputtering (abbreviated as bipolar HiPIMS or BPH) discharges at the substrate level. The role of the negative peak current and the positive pulse voltage, U
Michiels, Matthieu +5 more
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Abstract We report several effects found in reactive bipolar high-power impulse magnetron sputtering (abbreviated as bipolar HiPIMS or BPH) discharges at the substrate level. The role of the negative peak current and the positive pulse voltage, U
Michiels, Matthieu +5 more
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2015 IEEE Eindhoven PowerTech, 2015
High voltage bushing forms an essential part of a power transformer and its insulation condition is of high importance in a transformer's reliability. Transformer failure statistics indicate considerable contribution from bushing failures, which makes the monitoring of power transformer bushings essential.
Roya Nikjoo, Nathaniel Taylor, Hans Edin
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High voltage bushing forms an essential part of a power transformer and its insulation condition is of high importance in a transformer's reliability. Transformer failure statistics indicate considerable contribution from bushing failures, which makes the monitoring of power transformer bushings essential.
Roya Nikjoo, Nathaniel Taylor, Hans Edin
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