Analysis on frequency and impulse characteristics of grounding grid
The Journal of Engineering, 2019 Studying the frequency and impulse characteristics of grounding grids is of great reference value for the optimal design of the substation. As the frequency increasing, the variation trend of the grounding resistance under different conditions is not ...
Mengmeng Su +3 more
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High current field test of impulse transient characteristics of substation grounding grid
The Journal of Engineering, 2018 It is significant to research the impulse characteristics of substation grounding grid for its optimal design and safe and stable operation. In order to obtain the impulse transient characteristics of substation grounding grid under lightning impulse ...
Xuefang Tong, Xiaohui Dong, Bo Tan
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Influences of impulse generators on the impulse characteristics of grounding systems
Bulletin of Electrical Engineering and InformaticsIt is important to ensure the effectiveness of the experimental test set up and to accurately characterize grounding systems under high impulse conditions, the study on the effect of impulse generator is therefore needed. As with other experimental work, the test results may be influenced not only by the characteristics of the test load under study ...
Usman Muhammad +4 more
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Research on Characteristics of Directional Impulse Sound Sources in a U-shape Connected Well [PDF]
E3S Web of ConferencesThe traditional U-shaped connected well connection technology mainly relies on the magnetic steering technology to guide the connection of the two wells, but the magnetic steering technology has the disadvantage of short detection distance.
Zhang Jing, Zhang Peng
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Acoustical characteristics of guns as impulse sources
, 1985 The acoustical characteristics of five guns, including three calibres and two gun types, were measured to determine their suitability as impulse sources. Comparisons were made with spark and loudspeaker impulse sources. One 0.38 calibre revolver was found to be a suitably repeatable, omni- directional impulse source providing adequate sound energy in ...
Lamothe, M. J. R., Bradley, J. S.
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Performance of Practical Grounding Systems under High Impulse Conditions
Energies, 2018 This paper investigates the factors affecting the impulse characteristics of purposely built grounding systems. We installed 2 m × 2 m grounding systems in four different sites with different soil resistivity values.
Muhd Shahirad Reffin +3 more
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Effects of Negative Emotions and Cognitive Characteristics on Impulse Buying During COVID-19
Frontiers in Psychology, 2022 The COVID-19 pandemic has seriously disrupted the individual buying habits along with their consumption patterns. Previous studies indicated that anxiety and depression were related to impulse buying.
Yongjuan Yu
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Associations of Functional and Dysfunctional Impulsivity to Smoking Characteristics [PDF]
Journal of Addiction Medicine, 2012 Although the relation between impulsivity and smoking is well-documented, one model of impulsivity that has received little attention in the addiction literature separates impulsivity into 2 dimensions: functional impulsivity (tendency to make quick effective decisions) and dysfunctional impulsivity (tendency to make quick ineffective decisions).This ...
Stephanie R, Pitts, Adam M, Leventhal
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Conditioning Mechanism of Cu-Cr Electrode Based on Electrode Surface State under Impulse Voltage Application in Vacuum [PDF]
, 2011 Because of high insulation performance and environmental-friendliness, vacuum is attracting considerable attention, and vacuum circuit breakers (VCBs) are expected to develop into higher voltage level.
Nishimura, Ryouki +6 more
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Experimental Investigation of Impulse Characteristics of Transmission Line Tower Footings [PDF]
, 2012 Understanding the impulse response of tower grounding systems is a key factor in the determination of the lightning performance of transmission lines and the safety voltages near high voltage towers.
Ullah, Niamat +4 more
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