Results 171 to 180 of about 421,517 (209)

Servo motor characteristics by impulse testing

Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry, 1962
IT IS THE PURPOSE of this paper to suggest the possibility and to consider some of the initial analyses and results of determining certain servo motor steady-state and transient characteristics by impulse testing. If the method can be successfully applied to servo motors, it appears to be reasonable that many other servo and control components could be
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Steep Impulse Voltage Characteristics of Suspension Insulators

Electrical Engineering in Japan, 1995
AbstractTransmission and distribution lines are sometimes struck by lightning and there is some risk of electrical puncture of suspension insulators due to high and steep lightning surge voltage. When the insulators suffer from steep lightning surge voltages, the solid insulating body of the insulators sometimes is punctured before external flashover ...
Kenji Morita, Takashi Imakoma, Morio Nishikawa, Hiroshi Nozaki   +3 more
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Experimental investigation of grounding grid impulse characteristics

European Transactions on Electrical Power, 1998
AbstractThe paper provides a procedure for experimental determination of the grounding grid impulse characteristics. The principles of forming the measuring scheme, disposition and characteristics of the equipment used are described. Some of the numerous experimental results for the square‐shaped grounding grid are presented.
Z. Stojković, M. S. Savić, J. M. Nahman, D. Salamon, B. Bukorović   +4 more
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The characteristics of impulsive solar EUV bursts

Solar Physics, 1978
We examine a number of high time resolution intensity-time profiles of EUV impulsive bursts as observed by the Harvard College Observatory EUV Spectroheliometer carried aboard the Skylab Apollo Telescope Mount. These bursts are found to be synchronous (to within the instrumental time resolution of 5.5 s) in all wavelengths observed, corresponding to ...
A. Gordon Emslie, Robert W. Noyes
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Lightning Impulse Breakdown Characteristics of Frozen Soil

IEEE Transactions on Power Delivery, 2008
The impulse characteristics of frozen soil are the fundament for the lightning protection design of the overhead transmission lines in frozen soil environments. In this paper, the conductivity and lightning impulse breakdown characteristics of the frozen soil were experimentally studied, and those key factors influencing the impulse breakdown ...
null Jinliang He, null Baoping Zhang, null Peng Kang, null Rong Zeng, null Bo Zhang   +4 more
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Pressure characteristics of landslide-generated impulse waves

Journal of Mountain Science, 2019
The destructiveness of impulse waves generated by landslides (IWL) originates from the wave’s movement and load, wherein the impulse wave’s load is the major cause of sub-aerial building damage and casualties. In this study, an experiment involving 16 groups of physical tests for the wave pressure generated by a landslide was designed, consisting of 4 ...
Jian-min Tan, Bo-lin Huang, Yong-bo Zhao
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Impulse radio multipath characteristics and diversity reception

ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220), 2002
Delay-and-sum beamforming is applied to both ideal and measured ultra-wideband (UWB) signals. The results of propagation measurements are also used directly to estimate the performance of an UWB communication system and to characterize design tradeoffs.
R.J.-M. Cramer, M.Z. Win, R.A. Scholtz
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Characteristics of the impulsive phase of flares

1992
The impulsive phase of flares is an observational concept, characterized by spiky emissions from γ-rays to radio waves. It is generally agreed that during this time a large fraction of the. original flare energy resides in energetic particles which are manifested in these emissions.
A. O. Benz, M. J. Aschwanden
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Pulse propagation characteristics by an impulse technique

Medical & Biological Engineering & Computing, 1983
D L, Newman, S J, Penney, S E, Greenwald
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Impulse Insulation Characteristics of Wood Pole Lines

Transactions of the American Institute of Electrical Engineers, 1930
This paper gives the results of a rather comprehensive series of tests on the impulse insulation characteristics of wood and on combinations of insulators and wood as used in wood pole transmission line construction; and suggested methods of protecting wood from damage due to lightning discharges: also a brief discussion on the application of the data.
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