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Thematische Bibliographien / Overhead medium voltage line / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Overhead medium voltage line“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Lazaropoulos, Athanasios G., and Panayiotis G. Cottis. "Capacity of Overhead Medium Voltage Power Line Communication Channels." IEEE Transactions on Power Delivery 25, no. 2 (2010): 723–33. http://dx.doi.org/10.1109/tpwrd.2009.2034907.

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2

Orlov, Aleksandr I., Sergei V. Volkov, Ilsur Kh Garipov, and Sergey G. Nikiforov. "ANALYSIS OF POSSIBILITY OF LOW POWER TAKE-OFF FROM MEDIUM VOLTAGE OVERHEAD TRANSMISSION LINES." Vestnik Chuvashskogo universiteta, no. 1 (March 30, 2022): 100–106. http://dx.doi.org/10.47026/1810-1909-2022-1-100-106.

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The paper considers the possibility of using capacitive power take-off from medium voltage overhead power lines with isolated neutral. Direct scaling of the designs of the known 1-phase capacitive power take-off devices intended for high voltage overhead power lines is impractical for several reasons: the impossibility of obtaining significant power, violation of the operating conditions of protection against single-phase earth faults, the creation of asymmetry of phase voltages relative to the ground. As a power take-off device, it is proposed to use a 3-phase symmetrical circuit of a capacit

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3

Davor Mišković and Ivo Uglešić. "DECREASING BACKFLASHOVER NUMBERS ON MEDIUM VOLTAGE OVERHEAD LINES LOCATED IN REGIONS WITH HIGH SOIL RESISTIVITY." Journal of Energy - Energija 60, no. 1-4 (2022): 26–32. http://dx.doi.org/10.37798/2011601-4258.

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The possibility of decreasing backflashover numbers on medium voltage overhead lines located in regions with high soil resistivity has been analyzed in this paper. Until now, activities in this field of protecting overhead lines have been limited by existing surge protection equipment and possibilities of grounding systems. The possibility of using chemical rods for getting better ground resistance and introducing metal oxide surge arresters like line arresters alongside the medium voltage overhead lines is analyzed here. The idea of this paper is based on facts that metal oxide surge arrester

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4

Lazaropoulos, Athanasios G., and Panayiotis G. Cottis. "Transmission Characteristics of Overhead Medium-Voltage Power-Line Communication Channels." IEEE Transactions on Power Delivery 24, no. 3 (2009): 1164–73. http://dx.doi.org/10.1109/tpwrd.2008.2008467.

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5

Liu, Song, and Larry J. Greenstein. "Interference Evaluation of Overhead Medium-Voltage Broadband Power Line Systems." IEEE Transactions on Electromagnetic Compatibility 52, no. 4 (2010): 866–77. http://dx.doi.org/10.1109/temc.2010.2075934.

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6

El-Sayed Gouda, Osama, and Noura Ahmed Elshesheny. "Simulation of the Lightning Back-Flashover for Medium Voltage Distribution Network." Indonesian Journal of Electrical Engineering and Computer Science 3, no. 2 (2016): 264. http://dx.doi.org/10.11591/ijeecs.v3.i2.pp264-272.

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Lightning strikes represent a considerable cause of short interruptions in electrical overhead line networks. The over voltages caused by lightning cannot be avoided but their influence can be limited by appropriate over voltage protection. This paper presents analysis study on some factors affecting the back flashover of Egyptian 66 kV distribution lines using Alternative Transient Program (ATP). The study includes the modeling of 66 kV distribution lines, the effects of magnitude and the front and tail times of lightning wave on the back flashover voltages, the effects of the striking distan

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Giełdziński, Krzysztof. "Mobile robot moving on the overhead power line medium and high voltage." Pomiary Automatyka Robotyka 18, no. 9 (2014): 84–90. http://dx.doi.org/10.14313/par_211/84.

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8

Zhang, Qi, Bihua Zhou, Jianbao Wang, and Cheng Gao. "Full-Wave Analysis of Field-to-Line Coupling Effects Using 1D FDTD Method under Exciting Source with Different Bandwidths." Mathematical Problems in Engineering 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/890181.

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With the aim to analyze field-to-line coupling effects based on energy spectrum, parallel finite-difference time-domain (FDTD) method is applied to calculate the induced voltage on overhead lines under high-power electromagnetic (HPEM) environment. Firstly, the energy distribution laws of HEMP (IEC 61000-2-9), HEMP (Bell Laboratory), HEMP (Paulino et al., 2010), and LEMP (IEC61000-4-5) are given. Due to the air-earth stratified medium, both the absorbing boundary and the connecting boundary applied to scattering by finite-length objects are separately set in aerial and underground parts. Moreo

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Podoltsev, O. D., and I. M. Kucheriava. "PROTECTED INSULATED WIRES FOR MEDIUM-VOLTAGE OVERHEAD POWER LINES: ADVANTAGES, COMPUTATIONS." Tekhnichna Elektrodynamika 2022, no. 5 (2022): 14–17. http://dx.doi.org/10.15407/techned2022.05.014.

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The paper presents the advantages of protected insulated wires for medium-voltage (up to 35 kV) overhead power lines compared to the lines with traditional non-insulated wires. The mathematical model is developed and the computer calculations are realized for a 20 kV protected insulated wire with a steel-aluminum core. For such design, the distributions of the magnetic field and current density in three wires of overhead power line are analyzed, their resistance is determined taking into account the nonlinear properties of the steel core within the frequency range of 50–10000 Hz. This makes it

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Vantuch, Tomáš, Michal Prílepok, Jan Fulneček, Roman Hrbáč, and Stanislav Mišák. "Towards the Text Compression Based Feature Extraction in High Impedance Fault Detection." Energies 12, no. 11 (2019): 2148. http://dx.doi.org/10.3390/en12112148.

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High impedance faults of medium voltage overhead lines with covered conductors can be identified by the presence of partial discharges. Despite it is a subject of research for more than 60 years, online partial discharges detection is always a challenge, especially in environment with heavy background noise. In this paper, a new approach for partial discharge pattern recognition is presented. All results were obtained on data, acquired from real 22 kV medium voltage overhead power line with covered conductors. The proposed method is based on a text compression algorithm and it serves as a sign

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11

Saeed, Ismael, and Kamal Sheikhyounis. "Modeling Features of a Single Phase-to-Earth Fault in a Medium Voltage Overhead Transmission Line." UKH Journal of Science and Engineering 4, no. 2 (2020): 127–38. http://dx.doi.org/10.25079/ukhjse.v4n2y2020.pp127-138.

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The modeling and calculation of a single phase-to-earth fault of 6 to 35 kV have specific features when compared with circuits with higher nominal voltages. In this paper, a mathematical analysis and modeling of a 3-phase overhead transmission line with distributed parameters consisting of several nominal T-shaped, 3-phase links with concentrated parameters replaced by 1 nominal T-shaped link were carried out. Further analysis showed that not accounting for the distributed nature of the line parameters did not cause significant errors in the assessment of the maximum overvoltage in the arc sup

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Borisov, Ruslan K., Sergey S. Zhulikov, Sergey I. Khrenov, et al. "Development of a Stand for Demonstration of Human Injury by Touch and Step Voltages Near a 10 kV Overhead Line." Vestnik MEI 6, no. 6 (2020): 39–45. http://dx.doi.org/10.24160/1993-6982-2020-6-39-45.

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An objective to develop a labor protection engineering stand was set forth as part of the research and development work "Carrying out theoretical and experimental investigations and development of stands for demonstrating the danger of electric shock at a training ground" for visually demonstrating the danger of injuring a person by touch and step voltages in 3…35 kV medium voltage electric networks. The technical solutions for practically implementing the stand were adopted based on an analysis of regulatory documents, conditions under which dangerous touch and step voltages occur, the most t

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Kratky, Michal, Stanislav Misak, Petr Gajdos, Petr Lukas, Radim Baca, and Peter Chovanec. "A Novel Method for Detection of Covered Conductor Faults in Medium Voltage Overhead Line Systems." IEEE Transactions on Industrial Electronics 65, no. 1 (2018): 543–52. http://dx.doi.org/10.1109/tie.2017.2716861.

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14

Siregar, Rolandi Tumpal. "Optimization of Medium Voltage Overhead Line Design for PT Algae Marine Life at PT PLN Kariango Customer Service Unit." International Journal of Social Service and Research 3, no. 7 (2023): 1658–64. http://dx.doi.org/10.46799/ijssr.v3i7.454.

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The addition of premium customers at PLN ULP Kariango has an impact on the electricity supply burden borne by PLN. This study uses an experimental research model. These designs will be tested and graded based on established standards. Data collection was carried out by observing and opening data specifications for electric power system equipment. Data analysis in this study used ETAP software. For Option 1 the SUTM design does not meet the technical requirements because there is a % power loss of 16.3 % and a % voltage drop of 31.1 %. For financial analysis, option 1 was not implemented becaus

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Dai, Yun Hong, Shi Bin Liang, Ming Yao Hu, et al. "The Method Analysis of Overhead Transmission Line Single-Phase Grounding Fault Detection and Location." Advanced Materials Research 1030-1032 (September 2014): 1360–65. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.1360.

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Small current grounding power system is widely used in overhead transmission line in medium voltage distribution network in China. Because of its long lines, branch, space truss structure is complex, low level of automation, It is easily influenced by outside force and the natural environment, and single-phase grounding failure rate is high. It is an important topic to quickly and accurately detect the location of the fault line, and improve the reliability of power supply and distribution system.This paper has carried on the induction and the comparison of various fault detection and location

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Lazaropoulos, Athanasios G. "Review and Progress towards the Capacity Boost of Overhead and Underground Medium-Voltage and Low-Voltage Broadband over Power Lines Networks: Cooperative Communications through Two- and Three-Hop Repeater Systems." ISRN Electronics 2013 (March 28, 2013): 1–19. http://dx.doi.org/10.1155/2013/472190.

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This paper reviews and analyzes the broadband capacity and the coexistence potential of overhead and underground medium-voltage/broadband over power lines (MV/BPL) and low-voltage/broadband over power lines (LV/BPL) topologies when one and two repeaters are additively deployed between their existing transmitting and receiving ends (overhead and underground MV/BPL and LV/BPL topologies with two- and three-hop repeater system, respectively). The contribution of this paper is four fold. First, the factors that influence the broadband capacity performance of overhead and underground MV/BPL and LV/

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Kostić, Vojin. "A contribution to the rationalization of grounding impedance measurement in medium voltage substations." Tehnika 74, no. 1 (2019): 97–102. https://doi.org/10.5937/tehnika1901097K.

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In this paper, a method for grounding impedance measurement is proposed. The method is experimentally validated in five substations rated voltage 35/10 kV. Compared to a standard measuring method, the basic benefits of the proposed method are: (a) the current probe is realised in the form of a ground drill (a drill-type electrode designed to be driven into the earth) instead of being used the grounding grid of a next substation, (b) proposed method does not use an overhead line (or a cable line) for purposes to connect remote current probe, (c) the proposed method requires a test signal source

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Bendík, Jozef, Matej Cenký, and Oliver Hromkovič. "Energy Harvesting Device for Smart Monitoring of MV Overhead Power Lines—Theoretical Concept and Experimental Construction." Sensors 23, no. 17 (2023): 7538. http://dx.doi.org/10.3390/s23177538.

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Modern technological advancements have opened avenues for innovative low-energy sources in construction, with electric field energy harvesting (EFEH) from overhead power lines serving as a prime candidate for empowering intelligent monitoring sensors and vital communication networks. This study delves into this concept, presenting a physical model of an energy harvester device. The prototype was meticulously designed, simulated, constructed, and tested, to validate its foundational mathematical model, with implications for future prototyping endeavors. The findings illustrate the potential of

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Yusran, S. Manjang, Mukhlisah, and Suhaimah. "Equipment Maintenance Effect on Energy Losses Reduction at Medium Voltage Distribution Network." IOP Conference Series: Earth and Environmental Science 1134, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1755-1315/1134/1/012007.

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Abstract The energy loss is one of primary problems at medium voltage distribution network. The declining quality of distribution network equipment is main factor of energy losses. The equipment maintenance has a significant correlation with energy losses reduction. This research discussed the effect of equipment maintenance on energy losses reduction at medium voltage distribution network. The research object was a feeder of 20 kV medium voltage overhead line at Bontoala Substation, Makassar. The research method was the quantitative calculation of energy losses in a month based on empirical f

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Lazaropoulos, Athanasios G. "Towards Modal Integration of Overhead and Underground Low-Voltage and Medium-Voltage Power Line Communication Channels in the Smart Grid Landscape: Model Expansion, Broadband Signal Transmission Characteristics, and Statistical Performance Metrics (Invited Paper)." ISRN Signal Processing 2012 (October 16, 2012): 1–17. http://dx.doi.org/10.5402/2012/121628.

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The established statistical analysis, already used to treat overhead transmission power grid networks, is now implemented to examine the factors influencing modal transmission characteristics and modal statistical performance metrics of overhead and underground low-voltage/broadband over power lines (LV/BPL) and medium-voltage/broadband over power lines (MV/BPL) channels associated with power distribution in smart grid (SG) networks. The novelty of this paper is threefold. First, a refined multidimensional chain scattering matrix (TM2) method suitable for overhead and underground LV/BPL and MV

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Kutumov, Yu D., N. V. Kuzmina, and V. D. Lebedev. "Simulation study of 6–10 kV overhead transmission lines to research single phase to earth fault location algorithms." Vestnik IGEU, no. 2 (April 30, 2023): 36–43. http://dx.doi.org/10.17588/2072-2672.2023.2.036-043.

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As part of evolution of single phase to earth faults protection methods and tools in 6–10 kV networks the development of simulation study methods of these networks and their components becomes relevant. A significant direction in this area is upgrading of sensors installed directly on the wires and electrical transmission towers. These sensors are installed in the conditions of an electromagnetic field acting on them and dynamically changes both in time and space, especially during emergency modes including single phase to earth faults. Application of modern software offers a challenge for com

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Mahmood, Farhan, Mohammad E. M. Rizk, N. A. Sabiha, and Matti Lehtonen. "Flashover Probability Distribution and Volt-Time Curves of Medium Voltage Overhead Line Insulation Under Combined AC and Lightning Impulse Voltages." International Review of Electrical Engineering (IREE) 10, no. 5 (2015): 625. http://dx.doi.org/10.15866/iree.v10i5.7150.

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23

Landini, Marco, Giovanni Mazzanti, and Riccardo Mandrioli. "Procedure for Verifying Population Exposure Limits to the Magnetic Field from Double-Circuit Overhead Power Lines." Electricity 2, no. 3 (2021): 342–58. http://dx.doi.org/10.3390/electricity2030021.

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The verification of the limits of the population’s exposure to the magnetic field generated by double-circuit power lines from field measurements carried out on site is not trivial. It requires knowledge of the power line current instant values during the measurement period, the determination of the relationship between current and field at the measurement points (made more complex by the double-circuit overhead line configuration) and the use of that relationship to extrapolate the field values. Nevertheless, the verification of exposure limits for double-circuit power lines from on-site meas

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Chen, Yuhang, Rong Zheng, Haitao Lin, and Hong Xu. "Analysis on Waveform Diversity of Arc High-impedance Fault in Distribution Network Overhead Line based on Measured Data." Journal of Physics: Conference Series 3012, no. 1 (2025): 012057. https://doi.org/10.1088/1742-6596/3012/1/012057.

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Abstract In response to the strong diversity of waveforms associated with arc high-impedance faults in distribution networks and the weak generalization capability of existing fault identification models, this study undertook the following work: by reproducing faults with different causes, it obtained fault voltage and current data, including those from line-tree contact faults, ground medium-induced grounding faults, and polluted insulator flashover faults, while recording the fault process; this study elucidated the mechanisms behind fault arcs and flame formation, focusing on the analysis o

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Shuin, V. A., Yu D. Kutumov, N. V. Kuzmina, and T. Yu Shadrikova. "Selection of parameters of overhead lines models when calculating transient processes during earth faults in 6–10 kV networks." Vestnik IGEU, no. 5 (October 31, 2021): 5–17. http://dx.doi.org/10.17588/2072-2672.2021.5.005-017.

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Single phase-to-ground faults are the most common type of faults in 6–10 kV overhead distribution networks. Arc intermittent single phase-to-ground fault (PSP) are the most dangerous for the network and the damaged element. They are followed by intense transient processes and, as a result, dangerous overvoltage rate and significant transient current surges at the point of insulation damage. PSP transients also have a significant effect on the selectivity and operation stability of protection devices against this type of damage. Therefore, the development of the methods and means to improve the

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Lefort Borges, Cícero, and Manuel Luís Barreira Martinez. "Using radio frequency and ultrasonic antennas for inspecting pin-type insulators on medium-voltage overhead distribution lines." Ingeniería e Investigación 33, no. 2 (2013): 63–69. http://dx.doi.org/10.15446/ing.investig.v33n2.39519.

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This paper summarises the activities undertaken when using antennas (ultrasound and radiofrequency) for identifying insulators in pre-failure state by detecting the noise emitted by the distribution line and correlating this with these insulators (porcelain pin type) dielectric breakdown. This has led to developing low-cost maintenance procedures and providing support and criteria for engineering decisions regarding replacing these insulators. The technique used two detectors; a radio frequency detector was used in a first investigation of a particular distribution line, set to 40 MHz and inst

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Kalinchyk, Vasyl, Vitaliy Pobigaylo, Olena Borychenko, Sergii Kuzovkin, and Oleksandr Yatsenko. "Increasing the functional reliability of industrial electrical networks 6-10 kV by integrating vacuum reclosers." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 2 (8) (December 27, 2022): 11–14. http://dx.doi.org/10.20998/2079-3944.2022.2.02.

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Topical matter of power supply for today is effective increase in the reliability of power supply in medium voltage overhead power systems by sectioning of lines with switching devices, such as disconnectors, controlled disconnectors or sectioning points. In such schemes, the manual approach to emergency management is used. This kind of schemes can be used where the overhead power lines are. Protective device on the outgoing feeder is switched off as soon as damage occurs in any area. As a result, all consumers of the line lose power for a long time. Remotely operated disconnectors or remote c

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Tawafan, Adnan Hasan, Dhafer Mayoof Alshadood, and Fatima Kadhem Abd. "Inspection based risk management of electric distribution overhead lines." IAES International Journal of Artificial Intelligence (IJ-AI) 11, no. 1 (2022): 1. http://dx.doi.org/10.11591/ijai.v11.i1.pp1-12.

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This paper introduces a comprehensive process based on inspection for determination of medium voltage (MV) overhead line condition and it was tried that all factors influencing the outage of distribution network integrated into one index that called condition index. A condition based failure rate model has been proposed and its unknown parameters are calculated based on historical data. Shortest path problem (SPP) model has been proposed for the long term scheduling of maintenance and reinvestment. Objective function includes sum of the reinvestment, maintenance costs, failure costs and energy

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Adnan, Hasan Tawafan, Mayoof Alshadood Dhafer, and Kadhem Abd Fatima. "Inspection based risk management of electric distribution overhead lines." International Journal of Artificial Intelligence (IJ-AI) 11, no. 1 (2022): 1–12. https://doi.org/10.11591/ijai.v11.i1.pp1-12.

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This paper introduces a comprehensive process based on inspection for determination of medium voltage (MV) overhead line condition and it was tried that all factors influencing the outage of distribution network integrated into one index that called condition index. A condition based failure rate model has been proposed and its unknown parameters are calculated based on historical data. Shortest path problem (SPP) model has been proposed for the long term scheduling of maintenance and reinvestment. Objective function includes sum of the reinvestment, maintenance costs, failure costs and energy

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Walczak, Krzysztof, and Aleksandra Schött-Szymczak. "Use of Capacitive Probes to Detect Asymmetry and Earth Fault in a Medium-Voltage Power Network." Energies 18, no. 9 (2025): 2254. https://doi.org/10.3390/en18092254.

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The detection of short circuits in a medium-voltage (MV) network is a complex issue due to the way the neutral point works. An additional difficulty is the relatively large load asymmetry. The methods used so far include complex equipment (e.g., a system of voltage transformers) for use mainly in power stations. The detection of short circuits deep in the network is therefore difficult, and this could facilitate the process of fault localization and limit the areas that should be disconnected for the time of fault removal. This article presents the new concept of using a system of capacitive p

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BONDAR, Claudia, Bogdan-Constantin NEAGU, Gheorghe GRIGORAȘ, and Radu PORUMB4. "AUTOMATION OF ELECTRICAL DISTRIBUTION NETWORKS FOR MINIMIZING UNPLANNED INTERRUPTIONS AND IMPROVING POWER QUALITY." EMERG - Energy. Environment. Efficiency. Resources. Globalization 11, no. 2 (2025): 51–63. https://doi.org/10.37410//emerg.2025.2.03.

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Abstract: The paper addresses one of the major challenges faced by electricity distribution operators, namely maintaining compliance with industry regulations that impose increasingly stringent requirements on performance indicators. To determine these indicators, the distribution operator (DO) records all unplanned long-duration outages in the network, which are then used to develop plans and strategies to minimize such interruptions. For this purpose, new solutions for automating medium-voltage overhead distribution networks have been identified, with the use of remotely controlled equipment

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Sarajcev, Petar, Dino Lovric, and Tonko Garma. "Statistical Safety Factor in Lightning Performance Analysis of Overhead Distribution Lines." Energies 15, no. 21 (2022): 8248. http://dx.doi.org/10.3390/en15218248.

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This paper introduces a novel machine learning (ML) model for the lightning performance analysis of overhead distribution lines (OHLs), which facilitates a data-centrist and statistical view of the problem. The ML model is a bagging ensemble of support vector machines (SVMs), which introduces two significant features. Firstly, support vectors from the SVMs serve as a scaffolding, and at the same time give rise to the so-called curve of limiting parameters for the line. Secondly, the model itself serves as a foundation for the introduction of the statistical safety factor to the lightning perfo

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Pestov, Mark V., Til Diterich, Zhaskayrat E. Nurmukhambetov, Nurlan Kh Ongarbayev, Alexander I. Matsyna, and Dmitriy A. Denisov. "Loss of the Bird Diverter Efficiency at a Medium Voltage Overhead Power Line – Example of the Aktobe Region (Republic of Kazakhstan)." Raptors Conservation, no. 43 (December 31, 2021): 11–17. http://dx.doi.org/10.19074/1814-8654-2021-43-11-17.

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This report presents the results of survey of a 46-kilometer section of the overhead line (OHL) powering the cathodic protection of the Bukhara – Ural Gas Pipeline within the Aktobe Region of the Republic of Kazakhstan. 7 kilometers of this section were previously equipped with bird protection devices (BPDs), which are now totally lost due to destruction of their fastening elements. Inspection of the 46-km section of this OHL has revealed deaths of 2 eagles (Aquilasp.), 1 Common Kestrel (Falco tinnunculus), 1 Black Kite (Milvus migrans), and 3 Greater Flamingo (Phoenicopterus roseus). The conc

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Bhuiya, Md Ferdouse Hossain, Rohaiza Hamdan, Dur Mohammad Soomro, Abdelrehman Omer Idris, and Hussain Sharif. "High impedance fault detection in 11 kV overhead line with discrete wavelet transform and independent component analysis." Indonesian Journal of Electrical Engineering and Computer Science 24, no. 2 (2021): 661. http://dx.doi.org/10.11591/ijeecs.v24.i2.pp661-672.

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This paper proposes an analysis of high-impedance fault detection algorithms for medium voltage distribution lines based on the discrete wavelet transform (DWT) technique and a more advanced technique named independent component analysis (ICA) independently. Three-phase distribution line model and two diodes high impedance fault model, which represents the unsymmetrical fault current of electric arc, simulated using MATLAB/Simulink. High impedance fault (HIF) detection algorithm initially analyzes the sampled current waveforms through DWT and the resultant third level high-frequency components

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Bhuiya, Md Ferdouse Hossain, Rohaiza Hamdan, Dur Mohammad Soomro, Abdelrehman Omer Idris, and Hussain Sharif. "High impedance fault detection in 11 kV overhead line with discrete wavelet transform and independent component analysis." Indonesian Journal of Electrical Engineering and Computer Science 24, no. 2 (2021): 661–72. https://doi.org/10.11591/ijeecs.v24.i2.pp661-672.

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This paper proposes an analysis of high-impedance fault detection algorithms for medium voltage distribution lines based on the discrete wavelet transform (DWT) technique and a more advanced technique named independent component analysis (ICA) independently. Three-phase distribution line model and two diodes high impedance fault model, which represents the unsymmetrical fault current of electric arc, simulated using MATLAB/Simulink. High impedance fault (HIF) detection algorithm initially analyzes the sampled current waveforms through DWT and the resultant third level high-frequency components

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LANSBERG, A. A., and A. V. VINOGRADOV. "ANALYSIS OF THE CONFIGURATION OF RURAL ELECTRICAL GRIDS10 KV." Elektrotekhnologii i elektrooborudovanie v APK 71 (2024): 35–43. http://dx.doi.org/10.22314/2658-4859-2024-71-3-35-43.

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Currently, the works of domestic and foreign scientists explore options for improving medium-voltage electrical grids by introducing distributed automation tools. However, statistical data on the configuration of existing rural power grids of 10 kilovolts are not sufficiently presented in the literature. (Research Purpose) The research purpose is analyzing the configuration of rural electrical grids of 10 kilovolts, taking into account the transformer substations connected to them and the types of wires used. (Materials and methods) The analysis of 165 supporting schemes of 10 kilovolt overhea

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Hariswanda, Yuswono, and Izza Anshory. "Maintenance of 20 kV SUTM Distribution Network System (ROSE Feeder) at PT. PLN ULP Krian." Procedia of Engineering and Life Science 7 (March 19, 2024): 658–64. http://dx.doi.org/10.21070/pels.v7i0.1536.

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Distribution channel power distribution is usually called 20 KV Medium Voltage Overhead Line (SUTM). The main problem that frequently experiences disruptions in the distribution network's function is overcoming disturbances quickly and precisely. The most frequent disturbances experienced in the electric power system are in the distribution network, such as disturbances due to lightning, wind, rain, animals and damage. This research aims to determine the disturbances in the 20 kV distribution network and how to maintain the 20 kV SUTM distribution network system at PT. PLN (Persero) ULP Krian

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Lazaropoulos, Athanasios. "Main Line Fault Localization Methodology in Smart Grid – Part 1: Extended TM2 Method for the Overhead Medium-Voltage Broadband over Power Lines Networks Case." Trends in Renewable Energy 3, no. 3 (2017): 2–25. http://dx.doi.org/10.17737/tre.2017.3.3.0036.

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Habib, Md Zakaria, and Nathaniel Taylor. "Incremental Phase-Current Based Fault Passage Indication for Earth Faults in Resonant Earthed Networks." Electricity 4, no. 2 (2023): 96–113. http://dx.doi.org/10.3390/electricity4020007.

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We propose a method for the fault passage indication of earth faults in resonant-earthed networks, based on phase current measurements alone. This is particularly relevant for electricity distribution systems at medium-voltage levels. The method is based on the relative magnitudes of the phasor changes in the phase currents due to the fault. It is tested for various network types and operation configurations by simulating the network in pscad and using the simulated currents as the input for an implementation of the method in matlab. In over-compensated networks, the method shows reliable dete

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Rokhlov, Vladislav A., Rustam N. Khamitov, Sergey N. Zherebtsov, and Anastasia A. Latyntseva. "Algorithm for determining the operating parameters of an electrical network in the problem of optimal reconfiguration in real time." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 336, no. 1 (2025): 183–92. https://doi.org/10.18799/24131830/2025/1/4901.

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Relevance. The need to develop technical solutions to reduce electrical energy losses in medium-voltage distribution electrical networks of oil and gas fields. Aim. Development of an algorithm for determining the parameters of the operating mode of an electrical network, applicable in a system of optimal control of the network configuration in order to reduce the level of electricity losses in the network. Methods. Mathematical modeling methods and combinatorial optimization methods. The nodal voltage method and the Newton–Raphson method are used to calculate the network operating mode. The mo

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Łowczowski, Krzysztof, and Bartosz Olejnik. "Monitoring, Detection and Locating of Transient Earth Fault Using Zero-Sequence Current and Cable Screen Earthing Current in Medium Voltage Cable and Mixed Feeders." Energies 15, no. 3 (2022): 1066. http://dx.doi.org/10.3390/en15031066.

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This paper presents the final development of an expert system utilizing a measurement of cable screen earthing transient current. The developed system allows for identification and location of earth fault in underground cable and mixed lines (underground cable and overhead line) and monitoring of an earthing system and cable screen connections. The unique feature of the developed earth fault locating system is the possibility of identification of line type and branch of the MV underground cable or mixed feeder under earth fault conditions. As a result, the time to remove failure can be greatly

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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 (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

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Derlatka, Anna, Sławomir Labocha, and Piotr Lacki. "The Load-Bearing Capacity Assessment of GFRP Foundation Piles for Transmission Line Poles Using Experimental Tests and Numerical Calculations." Applied Sciences 15, no. 4 (2025): 2231. https://doi.org/10.3390/app15042231.

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This article proposes a novel tube foundation intended for use under transmission line poles. The glass fibre reinforcement polymer (GFRP) piles were driven into sand. A steel tube pole, approximately 6 m high, was mounted on the foundation. The analysed foundations were designed as a monopile to be implemented in the construction of low- and medium-voltage overhead transmission lines. Experimental field tests of innovative piles made of the composite material were carried out on a 1:1 scale. The aim of this work was to develop an isotropic material model treating the GFRP composite as homogen

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Granyak, Valeriy. "MATHEMATICAL MODEL OF OVERHEAD PARAMETRIC EDDY CURRENT PRIMARY MEASURING TRANSDUCER OF ABSOLUTE MOVEMENT." Vibrations in engineering and technology, no. 2(97) (August 27, 2020): 123–28. http://dx.doi.org/10.37128/2306-8744-2020-2-13.

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To date, even in the developed countries of Europe, more than 50% of the power generating equipment of hydropower plants have worked their design life. In the CIS countries, the percentage of such equipment is even higher. The complete replacement of such equipment requires a large amount of investment, while a significant part of the latter has a satisfactory technical condition for the further extension of the service life. However, with an increase in the operating time of every electrical equipments, the probability of its failure inevitably increases, which can lead to significant materia

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NURHAKIM, ASHADI AMIR, ROBBY IKHSAN AR RASYID, and WALUYO WALUYO. "Simulasi Berbasis MEH untuk Pemodelan Distribusi Potensial Listrik dan Medan Listrik pada Isolator Porselen 20 kV." MIND Journal 6, no. 2 (2021): 132–43. http://dx.doi.org/10.26760/mindjournal.v6i2.132-143.

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AbstrakIsolator adalah suatu perlengkapan yang cukup berarti dalam saluran udara tegangan menengah. Distribusi potensial serta medan listrik di sekitar isolator ialah wilayah yang masih mendapat pengaruh sifat kelistrikan dari suatu muatan. Riset ini mengulas simulasi distribusi potensial serta medan listrik pada isolator tegangan menengah berjenis porselen berbasis metode elemen hingga (MEH). Metode ini digunakan agar memudahkan dalam mengukur pendistribusian potensial listrik dan medan listrik pada isolator karena merupakan salah satu metode numerik yang lebih praktis untuk memecahkan masala

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Zhao, Hongshan, Weitao Zhang, and Yan Wang. "An Effective Method to Calculate Frequency Response of Distribution Networks for PLC Applications." Electronics 8, no. 6 (2019): 649. http://dx.doi.org/10.3390/electronics8060649.

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Modelling and estimating power-line communication (PLC) channels are complicated issues due to the complex network topologies, various junctions, and changeable loads. This paper focuses on the frequency response characteristics (FRCs) of medium-voltage (MV) PLC networks with special consideration of two scenarios that are often neglected but generally exist. In the first scenario, the MV distribution network is of the ring topology. In the second scenario, the MV overhead lines and underground cables join at junctions, and the shields of underground cables are grounded with nonzero grounding

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Yang, Chunlan, Wenhai Zhang, Rui Tang, and Xianyong Xiao. "Tree-Related High-Impedance Fault in Distribution Systems: Modeling, Detection, and Ignition Risk Assessment (Review)." Energies 18, no. 3 (2025): 548. https://doi.org/10.3390/en18030548.

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Tree-related high-impedance faults (THIFs) in medium voltage distribution systems represent a typical fault, especially where an overhead line crosses a forested area. The arc caused by THIFs could ignite nearby combustibles, significantly increasing the risk of forest fires. THIF detection remains a significant challenge because this type of fault has weak characteristics, as the fault impedance can reach hundreds of kΩ. Many previous studies have investigated reducing the risk of wildfires caused by THIFs. This paper reviews the existing literature on THIF modeling, detection, and ignition r

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Reis, Taiane Pereira dos, and Adroaldo Raizer. "Modeling and Simulation of Distribution Networks under Lightning Transients: A Comparative Study of Accuracy and Complexity." Energies 17, no. 2 (2024): 337. http://dx.doi.org/10.3390/en17020337.

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Nowadays, electricity consumption is closely linked to the economic growth of cities, states, and countries, providing a better quality of life and security. Overhead power distribution networks at medium- and low-voltage levels are responsible for serving and supplying electricity to the largest consumer class, as they represent most consumer installations. Due to this reason, there is a vast expanse of exposed networks vulnerable to the effects of atmospheric discharges. Therefore, the objective of this article is to implement and evaluate the models available in the literature to represent

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Gatta, Fabio, Alberto Geri, Stefano Lauria, and Marco Maccioni. "An Equivalent Circuit for the Evaluation of Cross-Country Fault Currents in Medium Voltage (MV) Distribution Networks." Energies 11, no. 8 (2018): 1929. http://dx.doi.org/10.3390/en11081929.

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A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations. CCFs are not uncommon in medium voltage (MV) public distribution networks operated with ungrounded or high-impedance neutral: despite the relatively small value of LGF current that is typical of such networks, CCF currents can be comparable to those that are found in Phase-To-Phase Faults, if the affected feeder(s) consists of cables. This occurs because the faulted cables’ sheaths/screens provid

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Kachanov, A. N., D. A. Korenkov, A. A. Revkov, V. V. Maksimov, and O. V. Vorkunov. "Words high-frequency drying processes simulation of wooden tangent towers in a vacuum chamber." Power engineering: research, equipment, technology 22, no. 6 (2021): 130–42. http://dx.doi.org/10.30724/1998-9903-2020-22-6-130-142.

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THE PURPOSE. The service life duration of wooden tangent towers used on overhead transmission lines with a voltage of up to 35 kV depends on the quality of lumber drying and subsequent impregnation. The drying of tangent tower workpieces is currently carried out by atmospheric or convective methods and is the longest and one of the energy-consuming stages of their production. At the same time, there are promising electrotechnological drying installations that can reduce the duration and improve drying quality at comparable specific energy costs. Such installations include vacuum high-frequency

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