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Journal articles on the topic 'Electrical transmission lines'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Koon, K. Tse Ve, P. Tchofo Dinda, and P. Marquié. "Dispersion-managed electrical transmission lines." Chaos, Solitons & Fractals 40, no. 4 (May 2009): 1976–90. http://dx.doi.org/10.1016/j.chaos.2007.09.099.

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2

Polyakov, D. A., V. N. Pugach, K. I. Nikitin, and I. V. Komarov. "ELECTRICAL SIGNAL ANALYSIS SYSTEM OF ELECTRIC TRANSMISSION LINES." Dynamics of Systems, Mechanisms and Machines 5, no. 3 (2017): 079–84. http://dx.doi.org/10.25206/2310-9793-2017-5-3-79-84.

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3

Lazo, Edmundo. "Localization Properties of Non-Periodic Electrical Transmission Lines." Symmetry 11, no. 10 (October 9, 2019): 1257. http://dx.doi.org/10.3390/sym11101257.

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The properties of localization of the I ω electric current function in non-periodic electrical transmission lines have been intensively studied in the last decade. The electric components have been distributed in several forms: (a) aperiodic, including self-similar sequences (Fibonacci and m-tuplingtupling Thue–Morse), (b) incommensurate sequences (Aubry–André and Soukoulis–Economou), and (c) long-range correlated sequences (binary discrete and continuous). The localization properties of the transmission lines were measured using typical diagnostic tools of quantum mechanics like normalized localization length, transmission coefficient, average overlap amplitude, etc. As a result, it has been shown that the localization properties of the classic electric transmission lines are similar to the one-dimensional tight-binding quantum model, but also features some differences. Hence, it is worthwhile to continue investigating disordered transmission lines. To explore new localization behaviors, we are now studying two different problems, namely the model of interacting hanging cells (consisting of a finite number of dual or direct cells hanging in random positions in the transmission line), and the parity-time symmetry problem ( PT -symmetry), where resistances R n are distributed according to gain-loss sequence ( R 2 n = + R , R 2 n − 1 = − R ). This review presents some of the most important results on the localization behavior of the I ω electric current function, in dual, direct, and mixed classic transmission lines, when the electrical components are distributed non-periodically.

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4

Cottet, D., J. Grzyb, T. Kirstein, and G. Troster. "Electrical characterization of textile transmission lines." IEEE Transactions on Advanced Packaging 26, no. 2 (May 2003): 182–90. http://dx.doi.org/10.1109/tadvp.2003.817329.

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5

Nahata, Ajay. "Ultrashort Electrical Pulses On Transmission Lines." Optics and Photonics News 12, no. 12 (December 1, 2001): 69. http://dx.doi.org/10.1364/opn.12.12.000069.

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6

Zhou, Z. R., A. Cardou, M. Fiset, and S. Goudreau. "Fretting fatigue in electrical transmission lines." Wear 173, no. 1-2 (April 1994): 179–88. http://dx.doi.org/10.1016/0043-1648(94)90271-2.

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7

Lu, JiaZheng, Bao-Hui Chen, Zhen Fang, Jianping Hu, Bowen Wang, Chuanping Wu, and Shoudao Huang. "Electrical safety of suppressing wildfires near high-voltage transmission lines using water mist." Journal of Fire Sciences 36, no. 4 (June 22, 2018): 295–314. http://dx.doi.org/10.1177/0734904118782668.

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Wildfires near transmission lines are important disasters that affect power transmission. Water mist is a highly efficient method for suppressing wildfires near electrical transmission lines, where it avoids line-tripping to ensure the safety of the grid. However, few studies have investigated the electrical safety during the water mist extinguishing process, including the risk of tripping transmission lines and the shock hazard for users. In this study, we systematically studied the influence of the gap distance and the electric conductivity of the water solution on the insulation characteristics of water mist with a Dv0.99 diameter of the droplets of ca. 500 µm, including the breakdown voltage and leakage current. Furthermore, we investigated the effect of water mist on the development of a long-gap discharge, and the insulation mechanism of water mist was also considered. Finally, water mist with multi-component additives was employed for suppressing wildfires near transmission lines in China, and we demonstrated the effectiveness of this method based on the reduction of line-tripping accidents caused by wildfires near transmission lines.

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8

Bahrami, M. R., and S. A. Abed. "Mechanical challenges of electrical transmission lines inspection robot." IOP Conference Series: Materials Science and Engineering 709 (January 3, 2020): 022099. http://dx.doi.org/10.1088/1757-899x/709/2/022099.

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9

Bonatti, Ivanil S., Pedro L. D. Peres, and Amauri Lopes. "Velocity of Propagation in Transmission Lines." International Journal of Electrical Engineering & Education 35, no. 1 (January 1998): 79–86. http://dx.doi.org/10.1177/002072099803500107.

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This paper discusses the skin effect on lossy transmission lines in the context of undergraduate electrical engineering courses. A new definition for propagation time derived from Parseval's theorem is proposed. In lossless transmission lines the proposed definition produces the conventional results and for lossy lines it matches quite exactly with the time simulation results, as shown by an illustrative example.

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10

Yang, Hong Lei, Shi Bin Liang, Xue Peng Miao, Min Cao, and Ming Chang. "Research and Application of Optical Fiber Sensing Technology on High Voltage Transmission Line Monitoring." Applied Mechanics and Materials 462-463 (November 2013): 59–63. http://dx.doi.org/10.4028/www.scientific.net/amm.462-463.59.

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On-line monitoring of high voltage transmission lines can prevent or reduce the accidents of transmission reduced by icing,wave,breeze vibrations of electric wires and the dropping of electrical insulators.An on-line monitoring system of high voltage transmission lines based on optical fiber sensing technology is setted in this paper.Fiber optic signal demodulation instrument in the transformer substation receives the signal sent by the optical fiber Bragg grating sensors fitted on transmission lines and electric power towers,and then the signal was sent to the transmission line monitoring center by the power system network.Field hang net experiments shows that the system can monitor the high voltage transmission lines accurately for a long time.

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11

Kayum, Md Abdul, Shamim Ara, Hemonta Kumar Barman, and M. Ali Akbar. "Soliton solutions to voltage analysis in nonlinear electrical transmission lines and electric signals in telegraph lines." Results in Physics 18 (September 2020): 103269. http://dx.doi.org/10.1016/j.rinp.2020.103269.

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12

Prechtl, A., and R. Schürhuber. "Nonuniform distortionless transmission lines." Electrical Engineering (Archiv fur Elektrotechnik) 82, no. 3-4 (March 13, 2000): 127–34. http://dx.doi.org/10.1007/s002020050003.

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13

YOKOYAMA, Shigeru, and Masahito SHIMIZU. "Lighting Protection of Transmission Lines." Journal of The Institute of Electrical Engineers of Japan 130, no. 9 (2010): 620–23. http://dx.doi.org/10.1541/ieejjournal.130.620.

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14

Schneider, H. M., J. F. Hall, G. Karady, and J. Rendowden. "Nonceramic Insulators for Transmission Lines." IEEE Power Engineering Review 9, no. 10 (1989): 63–64. http://dx.doi.org/10.1109/mper.1989.4310336.

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15

Ng, K. T., E. Boellaard, N. P. Pham, and J. N. Burghartz. "Through-silicon-chip transmission lines." Electronics Letters 38, no. 13 (2002): 640. http://dx.doi.org/10.1049/el:20020430.

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16

Xiaodong, Wu, and Lin Weigan. "Characteristics of microstrip transmission lines." Journal of Electronics (China) 7, no. 1 (January 1990): 1–5. http://dx.doi.org/10.1007/bf02778715.

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17

Kaganov, W. I., and Bui Huu Chuc. "Wireless power transmission." Russian Technological Journal 8, no. 6 (December 18, 2020): 47–53. http://dx.doi.org/10.32362/2500-316x-2020-8-6-47-53.

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Electrical energy from power plants to industrial facilities and settlements is mostly transmitted by wire-connected air or underground lines covering vast territories. However, in some rare cases there is a need for wireless transmission of electrical power to objects located in hard-to-reach areas. The problem of wireless transmission of electrical energy will become especially urgent as space electric power industry based on the placement of solar power plants in outer space is being developed. In this regard, several countries are conducting studies on the problem of electrical energy transmission using both laser and microwave radiation. The fundamentals of building systems for wireless transmission of electrical energy over short distances using microwave radiation are considered. Two options for constructing such systems are analyzed and calculated: using parabolic antennas and using phased array antennas. For both options the main parameters of systems for wireless transmission of electrical energy at 200 m were calculated. In the first case, powerful microwave devices are used: a magnetron or a direct-flight klystron; in the second case, microwave powerful field-effect transistors. For the second option the summation of the powers of microwave generators by means of their mutual synchronization is proposed.

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18

Madi, Ali, Yadong He, Lilong Jiang, and Baorui Yan. "Surface Tracking on Polymeric Insulators Used in Electrical Transmission Lines." Indonesian Journal of Electrical Engineering and Computer Science 3, no. 3 (September 1, 2016): 639. http://dx.doi.org/10.11591/ijeecs.v3.i3.pp639-645.

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Polymeric insulators need proper management and maintenance. Without proper management, the electric devices can be affected by factors such as leakages in the electricity system. In outdoor insulation, the environment subjects the material to a variety of stresses simultaneously that can lead to rapid degradation and loss of the insulation properties. Contamination of the surface of the insulating material, aging, electrical and mechanical stress are some of the forces that will result in the failure of the insulating material. To improve their reliability, research into the formulation of the material and the development of standards to eliminate creepage are being done. This work looks at the phenomenon of surface tracking. It investigates the actual process and looks at the possible types of surface tracking on polymeric insulators used under different environments. This also gives a short description of the emergence of polymeric insulators into the market.

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19

Im, Hyobin, Eunji Kim, Sareum Kim, and Jung-Sim Roh. "ELECTRICAL CHARACTERIZATION OF TEXTILE TRANSMISSION LINES FOR SMART CLOTHING." Global Fashion Management Conference 4, no. 9 (June 30, 2015): 628. http://dx.doi.org/10.15444/gfmc2015.04.09.16.

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20

Bahrami, Mohammad Reza. "Mechanics of diagnostic machine on electrical transmission lines conductors." MATEC Web of Conferences 224 (2018): 02021. http://dx.doi.org/10.1051/matecconf/201822402021.

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The article deals with the dynamics of wire transmission line while the robot-inspector is moving on it. To ensure proper and safe operation of the machine, mathematical modeling based on the Lagrangian mechanics has been conducted. The wire is considered as a stretched string with additional bending stiffness, and the robot-inspector as moving mass and pendulum. As the result, saw-tooth oscillations have been observed in the vertical plane and they cause parametric oscillations in the perpendicular plane. Advanced method of mathematical modeling of inspection robot motion on conductors allows us to choose the design parameters and the law of motion, in order to prevent accidents and ensure the safety of personnel.

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21

Ketchen, M. B., D. Grischkowsky, T. C. Chen, C‐C Chi, I. N. Duling, N. J. Halas, J‐M Halbout, J. A. Kash, and G. P. Li. "Generation of subpicosecond electrical pulses on coplanar transmission lines." Applied Physics Letters 48, no. 12 (March 24, 1986): 751–53. http://dx.doi.org/10.1063/1.96709.

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22

Straub, Clémentine, Sorin Olaru, Jean Maeght, and Patrick Panciatici. "Robust MPC for temperature management on electrical transmission lines." IFAC-PapersOnLine 51, no. 32 (2018): 355–60. http://dx.doi.org/10.1016/j.ifacol.2018.11.409.

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23

Gerkusov, A. A., and E. I. Gabdulvalieva. "ECONOMIC CORRECTION OF CURRENT DENSITIES IN THE WIRES OF THE EXISTING OVERHEAD LINES OF 110-220 KV." Proceedings of the higher educational institutions. ENERGY SECTOR PROBLEMS 20, no. 9-10 (January 24, 2019): 25–33. http://dx.doi.org/10.30724/1998-9903-2018-20-9-10-25-33.

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In this article, we present the methods used to date, the choice of the cross-sections of the wires of overhead transmission lines, taking into account not only the losses from the load currents, but also the corona losses and linear insulation of overhead transmission lines. The method of economic optimization of electrical loads and current density in operating air lines is considered, where the target functions are the specific discounted costs for transmission of 1 kW. h of electric power.

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24

Ossevorth, F., H. G. Krauthäuser, S. Tkachenko, J. Nitsch, and R. Rambousky. "Networks of high frequency inhomogeneous transmission lines." Advances in Radio Science 13 (November 3, 2015): 189–95. http://dx.doi.org/10.5194/ars-13-189-2015.

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Abstract. It is well known from classical transmission line theory, that transmission lines can be folded into impedances and thereby used in an electrical network setting. But it is also possible to create large networks of transmission lines consisting of tubes and junctions. The tubes contain the transmission lines and the junctions consider the mutual influences of the adjacent tubes or the terminals. The calculation of the currents and voltages at the junctions can be performed with the help the BLT-equation. So far this method is not applicable for nonuniform transmission lines described in a full wave method, because the lack of a distinct voltage gives no possibility for junctions. Junctions only make sense, when the considered network offers the possibility to propagate a TEM-Mode. If this requirement is fullfilled, nonuniform transmission lines could be included in an electrical network. This approach is validated in this paper in form of numerical simulations as well as measurements.

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25

Vlasenko, Ruslana, Ivan Khomyak, Oleksandr Harbar, and Nataliia Demchuk. "Lumbricides as a bio-indicators of the influence of electrical transmission line in the conditions of Ukrainian Polissia." Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 63, no. 1 (June 30, 2020): 7–18. http://dx.doi.org/10.3897/travaux.63.e51640.

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The complex interaction of a man and the environment requires the creation of algorithms for predict- ing the effects of anthropogenic impact. This requires the creation of the ecosystem models where all their basic elements and relationships are taken into account. One of the most effective methods for choosing the most informative differential elements of a system is the development and the implemen- tation of bio-indication models. Nowadays the important task is the development of the bio-indication methods for various anthropogenic complex effects. The electrical transmission lines carry out a specific integrated environmental impact. It is created on the changes in the environment under the influence of magnetic and electric fields and the long-term consequences of their interaction with ecosystem components. This effect is negative for the most representatives of biota and for earthworms in particular. We observe how the number of species de- creases, the species diversity reduces and the morphological parameters change towards species with a shorter body length under reaching the electrical transmission lines. Some genera of the earthworms are able to survive under the effects of the modern electrical transmis- sion lines, although this reflects their abundance and morphological parameters. These species include Aporrectodea caliginosa and Aporrectodea trapezoides. They can be used as diagnostic genera of impact of the electrical transmission lines on biota. They can be genera indicators for the determination of the effect of the electrical transmission lines. The presence of Lumbricus terrestris shows the low electrical transmission line effects, and the presence of Aporrectodea roseа or Aporrectodea longа shows low or moderate effects. We can create bioindication models according to the relations between groups of species of dominant and subdominant specimens formed by the body size. Under the condition of creating a wide data-base and establishing the vitality parameters, it is possible to develop more advanced and efficient algorithms for the synbioindicator analysis of the impact of the electrical transmission lines on the environment.

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26

Maximov, S., V. Torres, H. F. Ruiz, and J. L. Guardado. "Analytical Model for High Impedance Fault Analysis in Transmission Lines." Mathematical Problems in Engineering 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/837496.

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A high impedance fault (HIF) normally occurs when an overhead power line physically breaks and falls to the ground. Such faults are difficult to detect because they often draw small currents which cannot be detected by conventional overcurrent protection. Furthermore, an electric arc accompanies HIFs, resulting in fire hazard, damage to electrical devices, and risk with human life. This paper presents an analytical model to analyze the interaction between the electric arc associated to HIFs and a transmission line. A joint analytical solution to the wave equation for a transmission line and a nonlinear equation for the arc model is presented. The analytical model is validated by means of comparisons between measured and calculated results. Several cases of study are presented which support the foundation and accuracy of the proposed model.

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27

IRIE, TAKASHI. "Insulators for Transmission Lines and Substations." Journal of the Institute of Electrical Engineers of Japan 118, no. 4 (1998): 230–33. http://dx.doi.org/10.1541/ieejjournal.118.230.

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28

Dunlap, John H., Joseph M. Van Name, and Jerry A. Henkener. "Robotic Maintenance of Overhead Transmission Lines." IEEE Power Engineering Review PER-6, no. 7 (July 1986): 63. http://dx.doi.org/10.1109/mper.1986.5527880.

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29

Salehi, H., R. R. Mansour, and A. H. Majedi. "Nonlinear Josephson left-handed transmission lines." IET Microwaves, Antennas & Propagation 1, no. 1 (2007): 69. http://dx.doi.org/10.1049/iet-map:20050335.

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30

Tobin, Paul. "PSpice for Filters and Transmission Lines." Synthesis Lectures on Digital Circuits and Systems 2, no. 1 (January 2007): 1–151. http://dx.doi.org/10.2200/s00069ed1v01y200611dcs008.

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31

Longo, V. "Cost Effective Foundations For Transmission Lines." IEEE Power Engineering Review 8, no. 11 (November 1988): 6–7. http://dx.doi.org/10.1109/mper.1988.587691.

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32

Cheldavi, A. "Radiation from coupled multiconductor transmission lines." IEE Proceedings - Generation, Transmission and Distribution 150, no. 1 (2003): 15. http://dx.doi.org/10.1049/ip-gtd:20020721.

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33

Papazoglou, T. M. "Maximum efficiency of interconnected transmission lines." IEE Proceedings - Generation, Transmission and Distribution 141, no. 4 (1994): 353. http://dx.doi.org/10.1049/ip-gtd:19941119.

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34

Reid, J. R., E. D. Marsh, and R. T. Webster. "Micromachined rectangular-coaxial transmission lines." IEEE Transactions on Microwave Theory and Techniques 54, no. 8 (August 2006): 3433–42. http://dx.doi.org/10.1109/tmtt.2006.879133.

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35

Ingalls, M., and G. Kent. "Monolithic Capacitors as Transmission Lines." IEEE Transactions on Microwave Theory and Techniques 35, no. 11 (November 1987): 964–70. http://dx.doi.org/10.1109/tmtt.1987.1133793.

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36

Naumov, I. V., and D. N. Karamov. "On damage rate of overhead power transmission lines in power supply systems." Safety and Reliability of Power Industry 14, no. 2 (July 28, 2021): 92–99. http://dx.doi.org/10.24223/1999-5555-2021-14-2-92-99.

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The purpose of the article is to analyze the damage rate of overhead power transmission lines (OPL) in medium-voltage electrical distribution networks of the Irkutsk region. The established International Indices that determine the level of reliability of the functioning of electric networks are considered, and information on the compliance of the condition of electric networks in Russia with these indices is analyzed. Analytical information on the damage rate of elements of these networks and their causes in Europe, America, and Russia is presented. The emphasis is placed on the fact that the most common damage is characteristic of overhead power lines, especially 6–10 kV lines. As an object of research, two branches of the Irkutsk electric grid company (IEC) were taken, one of which provides electricity to rural consumers, the other — mainly to consumers residing in the territory of the city Irkutsk. The characteristics of these electric networks, their territorial location and basic technical data are presented. To conduct analytical monitoring of the level of reliability of overhead power transmission lines, logs of disconnection of the Eastern and Southern electric networks of the IEC over a long-term period were used. On the basis of this information, tables of failures and their consequences in the studied electrical networks were compiled for monthly average data over the period under examination for various causes of damage. To plot time diagrams of the parameters under examination, computer programs were compiled in the Matlab system, the use of which made it possible to obtain visualization of changes in failures for various reasons for the electrical networks under consideration. The information on the time of power supply interruptions in these networks, as well as the amount of electricity underutilized by consumers during these interruptions and its cost are analyzed. It is shown that in the electric networks under consideration, most of the power failures are related to the territorial dispersion of these networks, and the low level of equipment controls and insufficient qualification of operating personnel, as evidenced by the significant number of failures for unknown reasons. Besides, a significant part of the failures is due to damage to the overhead line wires, switching equipment and the effect of wind load. Recommendations for improving the condition of power transmission lines and a number of measures aimed at improving the level of reliability of power supply are presented.

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37

Maevsky, D. A., O. J. Maevskaya, O. M. Besarab, and O. M. Semenug. "EXPERIMENTAL DEFINITION OF PRIMARY CONSTANTS OF THE ELECTRICAL TRANSMISSION LINES." ELECTRICAL AND COMPUTER SYSTEMS 30, no. 106 (March 26, 2019): 75–82. http://dx.doi.org/10.15276/eltecs.30.106.2019.8.

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38

Narahara, Koichi, and Makoto Nakamura. "Compensation of Polarization Mode Dispersion with Electrical Nonlinear Transmission Lines." Japanese Journal of Applied Physics 42, Part 1, No. 10 (October 9, 2003): 6327–34. http://dx.doi.org/10.1143/jjap.42.6327.

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39

Sprik, R., I. N. Duling, C. ‐C Chi, and D. Grischkowsky. "Far infrared spectroscopy with subpicosecond electrical pulses on transmission lines." Applied Physics Letters 51, no. 7 (August 17, 1987): 548–50. http://dx.doi.org/10.1063/1.98395.

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40

Seppanen, Janne M., Paavo O. Tammi, and Liisa C. Haarla. "Underground Ground Wires for Transmission Lines: Electrical Behavior and Feasibility." IEEE Transactions on Power Delivery 28, no. 1 (January 2013): 206–15. http://dx.doi.org/10.1109/tpwrd.2012.2213100.

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41

Jamaleddine, A., G. McClure, J. Rousselet, and R. Beauchemin. "Simulation of ice-shedding on electrical transmission lines using adina." Computers & Structures 47, no. 4-5 (June 1993): 523–36. http://dx.doi.org/10.1016/0045-7949(93)90339-f.

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42

Lee, K. S. H. "Electromagnetic Coupling to Transmission Lines." Electromagnetics 8, no. 2-4 (January 1988): 107–24. http://dx.doi.org/10.1080/02726348808908211.

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43

Alanazi Hani, Owaid S., and Ma Xiaoming. "The Calculation Method of Shielding Failure Trip Rate of UHV Transmission Lines in Mountainous Areas." E3S Web of Conferences 292 (2021): 01010. http://dx.doi.org/10.1051/e3sconf/202129201010.

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Since the second industrial revolution, electric energy has always been the most important and indispensable clean energy in the international community. As a kind of transmission technology with small loss ratio and long transmission distance, UHV transmission is widely used and vigorously promoted in the world. However, UHV transmission lines are often assumed to be vulnerable to thunderstorm discharge in some harsh geographical environment. In order to improve the calculation accuracy of line shielding failure rate, an improved electrical geometric model is proposed to study the shielding failure characteristics of transmission lines under complex mountainous areas, and various typical characteristics including mountain tops, valleys, slopes, climbing, and crossing trenches are summarized.

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44

Goh, Ker Liang. "Efficiency of High Voltage Transmission in Power Lines." Physics Educator 01, no. 04 (December 2019): 1920009. http://dx.doi.org/10.1142/s2661339519200099.

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In introductory Physics courses, one might come across a question of why electricity is transmitted from the power station at high voltage? Analysis of a typical quantitative question is illustrated in this paper, showing its deficiencies. An alternative method that mimics more closely to realistic situations is proposed to better illustrate the increase in efficiency of transmitting electrical power at high voltages.

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45

Timofeeva, M. V. "Enhanced analytical model of power transmission line icing." Safety and Reliability of Power Industry 11, no. 3 (October 21, 2018): 222–26. http://dx.doi.org/10.24223/1999-5555-2018-11-3-222-226.

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Accidents in power transmission lines under icing conditions, in particular, those of cables, cause a great economic damage in Russia. Because of the lack of the possibility to forecast and evaluate reliably the consequences of weather conditions contributing to icing of transmisison line cables, power grid services often have to go to the place of a potential accident relying on guesswork. This leads to considerable losses of time and material resources, while the average recovery time of a damaged high voltage power transmission line is 5–10 days.For the effective prediction and timely prevention of negative consequences of icing of on power line cables, an analytical model that describes the growth of ice on the surface of the electrical cable has been developed. The model is based on a widely applicable analytical model of [1], supplemented with dependence of the growth of ice sleeve on the angle between the wind direction and the cable, and on the electric field strength of the cable.The results obtained using the new analytical model and the [1], model have been compared and show that as the angle between the wind direction and the cable decreases, the intensity of the ice growth decreases significantly. At the same time, the strength of the electric field of the cable affects negligibly the trajectory of water droplets.A conclusion is drawn about insignificance of electrical field strength of the electric cable as a factor of growth of ice deposits. It is stated that the ice thickness value obtained using the developed model can be increased under specific weather conditions and design parameters of transmission lines. The obtained model can be improved by using other physical effects that affect icing of electric cables. Further, the model can be introduced in operation of energy companies to monitor the condition of power transmission lines and to carry out anti-icing activities.

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46

Cenký, Matej, Jozef Bendík, and Žaneta Eleschová. "Advanced methods for computation of electrical parameters for overhead transmission lines." Journal of Electrical Engineering 68, no. 2 (March 28, 2017): 143–47. http://dx.doi.org/10.1515/jee-2017-0020.

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Abstract This paper is aimed on the calculation of the electrical parameters of the overhead transmission lines. Standard trans- position and untransposed calculations are presented, also with results on the existing power line on 110 kV voltage level and known measured values of the electrical parameters. These measured parameters are used as the reference values. A presumption is made, that through more complex calculation one can achieve better results. The real results achieved are presented and compared with an ideal presumption

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47

Benson, T. M. "Design, Fabrication and Test Techniques for Microstrip Transmission Lines." International Journal of Electrical Engineering & Education 23, no. 3 (July 1986): 231–37. http://dx.doi.org/10.1177/002072098602300307.

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The background to and methods for an experiment on the design, fabrication and test of microstrip circuits are presented. The experiment is intended to complement final year of undergraduate or M.Sc. level electromagnetics sections of Electrical and Electronic Engineering courses. The circuits are fabricated using p.c.b. techniques thus keeping costs to a minimum.

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Bolshev, V. E., A. V. Vinogradov, A. V. Vinogradova, A. V. Bukreev, and S. R. Khasanov. "Study of statistical data on the composition of electric distribution networks on the example of a Kaluga region district." E3S Web of Conferences 220 (2020): 01005. http://dx.doi.org/10.1051/e3sconf/202022001005.

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Sustainable operation of the power grid complex is impossible without reliable and high-quality operation of 10/0.4 kV electrical distribution networks, which are the final link in the system for providing consumers with electric energy and are in direct interaction with a specific consumer. The study of statistical information on the composition of distribution networks makes it possible to draw conclusions about electrical network state, to implement recommendations for their development and to compare distribution electrical networks in different regions. This information is especially relevant for analyzing the reliability of power supply to consumers connected to the considered electrical distribution networks. Such indicators of network structure as the length of electric transmission lines of different voltages and power transmission schemes are studied. It also analyzes the number of damages in networks, the causes of these damages, data on the time of planned and emergency outages. This paper considers the structure of 10/0.4 kV electrical distribution networks located on the territory of one of the districts of the Kaluga region. The sample for distribution networks was: 1190 overhead transmission lines and 536 transformer substations. Consumers in the district are 21671 subscribers of individuals and 1986 subscribers of legal entities, that is, a total of 23657 metering points. On the lines of 0.4 kV and 10 kV, the percentage of their isolated design was revealed. The share of single-transformer and two-transformer versions of transformer substations is analyzed.

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Zhou, Xiangxian, Xiang Cui, Tiebing Lu, Yang Liu, Xuebao Li, Jiamei He, Ru Bai, and Yongzan Zhen. "Shielding Effect of HVAC Transmission Lines on the Ion-Flow Field of HVDC Transmission Lines." IEEE Transactions on Power Delivery 28, no. 2 (April 2013): 1094–102. http://dx.doi.org/10.1109/tpwrd.2012.2225450.

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Gil, M., J. Bonache, J. Selga, J. Garcia-Garcia, and F. Martin. "Broadband Resonant-Type Metamaterial Transmission Lines." IEEE Microwave and Wireless Components Letters 17, no. 2 (February 2007): 97–99. http://dx.doi.org/10.1109/lmwc.2006.890327.

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