Results 251 to 260 of about 73,716 (295)
European Transactions on Electrical Power, 2007 AbstractThe study on the physics of discharges in soil and performance of earthing networks subjected to lightning currents are important in order to improve the reliability of electrical systems and to obtain better electrical models of earthing systems.
Nor, N. Mohamad, Ramli, A.
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Neuroscience and Behavioral Physiology, 2020
The delay discounting procedure was used to classify rats into high-impulsivity (preferring low-value immediate food reinforcement) and low-impulsivity (choosing a high-value reinforcement with a 5-sec delay), as well as ambivalent animals, which did not display any preference for reinforcement choice.
I. V. Pavlova +3 more
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The delay discounting procedure was used to classify rats into high-impulsivity (preferring low-value immediate food reinforcement) and low-impulsivity (choosing a high-value reinforcement with a 5-sec delay), as well as ambivalent animals, which did not display any preference for reinforcement choice.
I. V. Pavlova +3 more
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A high efficiency conditioning method of vacuum interrupters by high frequency voltage impulses
2012 25th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2012It is well-known that the high-voltage withstand ability of vacuum interrupters (VIs) can be increased by conditioning processes. Several conventional conditioning methods, such as spark conditioning and current conditioning, are used by most vacuum interrupter manufacturers.
He Yang +4 more
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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
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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
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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
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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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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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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
openaire +1 more source