Results 251 to 260 of about 22,137 (279)
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Multiband non-resonant antenna system with reduced ground clearance
2017 11th European Conference on Antennas and Propagation (EUCAP), 2017Small and multiband antennas are crucial elements for wireless devices. On one hand, the space devoted to the antenna is small due to the presence of other electronic components in the device. On the other hand, the number of frequency bands with the inclusion of 4G is relevant.
Andujar, Aurora +2 more
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Microwave resonance effects in paramagnetic singlet-ground-state systems
AIP Conference Proceedings, 1975EPR in the excited Γ5(2) triplet state of Tm3+ in cubic TmP has been studied. From the temperature dependence of the g‐value, it was found that the fourth‐order term dominates in the crystal‐field, and the exchange interaction between Tm3+ ions is weakly antiferromagnetic.
K. Sugawara, C. Y. Huang, B. R. Copper
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First resonant neutral grounding implantation in Spanish distribution system
2001 IEEE Porto Power Tech Proceedings (Cat. No.01EX502), 2002Changing the earthing system of medium voltage networks is a complex operation. It is necessary to take into account all the various technical aspects of the totality of the equipment involved in this process. Frequently, considerable additional economic investment is required as a result of this analysis of technical aspects.
A.J. Mazon +5 more
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Fault Line Selection in Resonant Grounded System Based on IMEn
Advanced Materials Research, 2014When the single phase ground fault occurs in resonant grounded system, there are significant differences in the components of fault phase current between fault line and non-fault line. This feature can be reflected by intrinsic mode entropy (IMEn) of fault current. IMEn is a new signal analysis over multiple oscillation levels.
Meng Zhang, Jian Wen Ren
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Ground State Solutions for Resonant Cooperative Elliptic Systems with General Superlinear Terms
Mediterranean Journal of Mathematics, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shi, Hongxia, Chen, Haibo
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Practical Experiences with Resonant Grounding in a Large 34.5-Ky System
Transactions of the American Institute of Electrical Engineers, 1950A large 34.5-kv system was operated ungrounded until early in 1946, at which time resonant grounding was installed, since it promised to be the most effective and most economical method of improving reliability of service. The layout of the system and a description of tests with the groundfault neutralizer installed are given. Records ords of operation
Harold H. Brown, Eric T. B. Gross
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Effects of Network Unbalances and Their Solutions in Resonant Grounded Power Distribution Systems
2018 Australasian Universities Power Engineering Conference (AUPEC), 2018This paper investigates the effects of network unbalances and proposes solutions to mitigate the effects for resonant grounded power distribution systems (RGPDSs). The effects of network capacitive unbalances are analyzed to investigate their sensitivities on the neutral voltage.
M. A. Barik +6 more
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Wavelets: a new tool for the resonant grounded power distribution systems relaying
IEEE Transactions on Power Delivery, 1996This paper introduces wavelets and shows that they may be efficient and useful for power distribution relaying. The wavelet transform of a signal consists in measuring the "similarity"between the signal and a set of translated and scaled versions of a "mother wavelet". The "mother wavelet" is a chosen fast decaying oscillation function.
O. Chaari, M. Meunier, F. Brouaye
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Fault Location Based on Correlative Characteristic Values in Resonant Grounded System
2017 10th International Conference on Intelligent Computation Technology and Automation (ICICTA), 2017A method for fault location based on correlative characteristic values (CCVs) in resonant grounded system is presented. In this method, zero-sequence current signals of two different data windows are extracted for each feeder terminal unit (FTU) after a single-phase-to-ground fault occurs. Then, their correlation coefficient which is called CCV of each
Leng Hua +3 more
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Dynamic Modeling and Identification of Arc Grounding Fault in Resonant Grounding System
2023 IEEE 6th International Electrical and Energy Conference (CIEEC), 2023Peng Wang +4 more
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