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Journal articles on the topic 'Flashovers'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Thanasaksiri, Thanaphong. "Lightning Flashover Rates of Overhead Distribution Lines Applying EMTP and IEEE Std.1410." ECTI Transactions on Electrical Engineering, Electronics, and Communications 10, no. 1 (2011): 123–29. http://dx.doi.org/10.37936/ecti-eec.2012101.170484.

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This paper calculates the lightning flashover rates of 22 kV overhead distribution line. In order to calculate the backflashover rate (BFOR), the performance of line which related to the insulator backflashover has been modeled and analyzed using Electromagnetic Transient Program (EMTP). The flashover models, volt time curve (VT), disruptive effect model (DE) and leader progression model (LPM) have been compared. The shielding failure flashover rate (SFFOR) and induced voltage flashover rate (IVFOR) have been calculated follow equations given in IEEE std 1410-2010. Finally the total numbers of

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2

S. Sadovic and T. Sadovic. "Line Surge Arresters Applications On The Multi Circuit Overhead Lines." Journal of Energy - Energija 60, no. 1-4 (2022): 75–80. http://dx.doi.org/10.37798/2011601-4265.

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This paper presents application of line surge arresters (LSA) on the different voltage level multi circuit overhead lines. Double circuit shielded compact line with and without distribution circuit on the same tower is analyzed. Distribution circuit has lower insulation level, meaning that almost all flashovers will happen on that circuit. Flashovers on the distribution circuit help to improve lightning performance of the transmission circuits. Flashovers on the distribution circuit diverts fraction of the lightning current along its phase conductors, improving at the same time coupling betwee

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3

An, Guan, Zhu, and Zhang. "Research on Windage Yaw Flashovers of Transmission Lines under Wind and Rain Conditions." Energies 12, no. 19 (2019): 3728. http://dx.doi.org/10.3390/en12193728.

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Windage yaw flashovers under strong wind and rain conditions leave a negative impact on the safe operation of transmission lines. However, the mechanism behind this is not well known yet. Therefore, this paper proposes a systematic method, including three basic parts described as simulation of wind and rain loads, calculation of windage yaw, and flashover analysis, to analyze windage yaw flashovers of transmission lines. The YanMeng-particle swarm optimization (YanMeng-PSO) algorithm is proposed to enhance the simulation accuracy. Unlike the conventional approach, the windage yaw status of con

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4

Mestriner, Daniele, and Massimo Brignone. "Corona Effect Influence on the Lightning Performance of Overhead Distribution Lines." Applied Sciences 10, no. 14 (2020): 4902. http://dx.doi.org/10.3390/app10144902.

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Overhead distribution lines can be seriously damaged from lightning events because both direct and indirect events can cause flashovers along the line. The lightning performance of such power lines is usually computed neglecting the effect of corona discharge along the conductors: in particular, the corona discharge determined by the indirect lightning event is taken into account only by few researchers because it can have meaningful impacts only in few cases. However, when we deal with overhead distribution lines with high Critical Flashover value (CFO) and small diameters, the corona dischar

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5

Ainah, P. K., and B. L. Bolou-Sobai. "Environmental Pollution and Influence on Insulator Flashover: A Review." European Journal of Engineering and Environmental Sciences 8, no. 1 (2024): 11–20. https://doi.org/10.5281/zenodo.11196491.

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This review delves into various pollutants and their impact on outdoor insulators, exploring strategies to prevent pollution-related flashovers. It delves into protective coatings, suitable insulator choices, and predictive maintenance to mitigate pollution-induced flashovers. These measures are crucial due to the detrimental effects of pollution flashovers on insulators and system reliability. The review also addresses biological pollutants, industrial emissions, and coastal salt pollution's effects on insulation performance, stressing the need for mitigation. Given pollution's direct influen

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Khoirudin, Sukarman Sukarman, Dodi Mulyadi, et al. "Analysis of Transformer Oil Post-Flashover: DGA Testing and Diagnostic Approached." Jurnal Teknik Mesin Mechanical Xplore 4, no. 2 (2024): 74–85. http://dx.doi.org/10.36805/jtmmx.v4i2.6093.

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Transformer oil (TO) serves as a cooling fluid and insulation medium in transformers. One cause of the decline in the quality of TO is flashover, leading to overheating of the oil inside the transformer. Flashovers, which are sudden electrical discharges in transformers, can lead to the generation of gases within the insulating oil. Understanding the changes in gas content is crucial for assessing the health and condition of the transformer. Gas analysis was conducted using the Total Dissolved Combustible Gas (TDCG), Doernenburg and Roger’s ratio method, focusing on gases extracted from both t

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7

M. Kizilcay and C. Neumann. "Mitigation of common mode failures at multi-circuit line configurations by application of line arresters against back-flashovers." Journal of Energy - Energija 59, no. 1-4 (2022): 52–60. http://dx.doi.org/10.37798/2010591-4278.

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Due to the limited number of corridors multi circuit line configurations are often applied. These overhead lines frequently consist of high towers that are subject to lightning strokes. In case of higher current amplitudes and higher footing resistances due to bad earthing conditions back-flashovers are caused leading to common mode failures and to severe outages. The paper describes investigations performed by means of computer simulations to identify the towers of a multi-circuit line consisting of voltage levels 380 kV, 220 kV and 110 kV that are endangered by back-flashovers of the 110-kV

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8

Desta, Berhanu Zelalem, Mengesha M. Wogari, and Stanislaw M. Gubanski. "Investigation on Pollution-Induced Flashovers of In-Service Insulators in Ethiopian Power Transmission Lines." Energies 17, no. 9 (2024): 2007. http://dx.doi.org/10.3390/en17092007.

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Power transmission lines in Ethiopia are experiencing an alarmingly high frequency of unexplained outages triggered by environmental factors, which significantly undermine the reliability of the country’s power system. This paper presents investigations aiming to identify those among the unexplained fault records that have been caused by pollution induced flashovers. An identification method is developed, which associates the contextual fault features, such as information about the characteristics of the fault, fault location, and time of day, as well as month of its occurrence with local mete

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9

Ruwah Joto, Dhimas Dhesah Kharisma, Tresna Umar Syamsuri, and Aly Imron. "Pengaruh Efek Kontaminasi Isolator KeramikTerhadap Rugi DayaSaluran Udara Tegangan Tinggi." Elposys: Jurnal Sistem Kelistrikan 10, no. 3 (2023): 167–71. http://dx.doi.org/10.33795/elposys.v10i3.4222.

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In meeting consumers' needs for electric power continuously, the reliability of electric power distribution is something that needs to be considered. One of the reliability parameters is the network's ability to distribute power from generators continuously, with the allowable voltage and frequency quality. For this reason, the presence of an insulator in the power distribution system is very important considering its function is to separate live conductors from their supports. If the isolation properties do not function, a voltage failure will occur so that power distribution will stop, resul

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10

Warmi, Yusreni, Sitti Amalia, Zulkarnaini Zulkarnaini, et al. "Modeling and simulation for flashover location determination on 150 kV insulator string." International Journal of Electrical and Computer Engineering (IJECE) 14, no. 4 (2024): 3716. http://dx.doi.org/10.11591/ijece.v14i4.pp3716-3728.

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The 150 kV Payakumbuh-Koto Panjang transmission line in West Sumatra is located in an area with high lightning activity. Based on Meteorological, Climatological, and Geophysical Agency (BMKG) data (2017-2023), the average number of lightning days per year (IKL: isokeraunic level) reaches 165-173 days/year, and 79% of the transmission towers are located in hilly and rocky areas. This causes contamination of the insulator, which can reduce its performance and cause flashovers in the insulator circuit. However, in the field, finding flash points in insulators is still a challenge. Therefore, simu

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11

Xu, Jingwei, Fanghui Yin, Longji Li, et al. "Wet Snow Flashover Characteristics of 500-kV AC Insulator Strings with Different Arrangements." Applied Sciences 9, no. 5 (2019): 930. http://dx.doi.org/10.3390/app9050930.

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In order to study the wet snow flashover characteristics of 500-kV AC insulator strings under different arrangements, wet snow flashover tests were carried out in the large climate chamber of China Electric Power Research Institute (CEPRI). The wet snow flashover voltages were obtained by the even-rising method and the flashovers were filmed by a camera. The test results showed that the installation of an anti-icing shed of large diameter could increase the wet snow flashover voltage. The distance between the two insulators was a key parameter that influenced the discharge process and the flas

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Warmi, Yusreni, Zulkarnaini Zulkarnaini, Dasman Dasman, Antonov Bachtiar, Zuriman Anthony, and Hamdi Azhar. "Modeling and simulation for flashover location determination on 150 kV insulator string." Modeling and simulation for flashover location determination on 150 kV insulator string 14, no. 4 (2024): 3716–28. https://doi.org/10.11591/ijece.v14i4.pp3716-3728.

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The 150 kV Payakumbuh-Koto Panjang transmission line in West Sumatra is located in an area with high lightning activity. Based on Meteorological, Climatological, and Geophysical Agency (BMKG) data (2017-2023), the average number of lightning days per year (IKL: isokeraunic level) reaches 165-173 days/year, and 79% of the transmission towers are located in hilly and rocky areas. This causes contamination of the insulator, which can reduce its performance and cause flashovers in the insulator circuit. However, in the field, finding flash points in insulators is

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13

Li, Chengqian, Peng Dou, Ruyi Zhao, Yurou Shi, Gaojie Fu, and Bin Shen. "Preparation and Super-Hydrophobic Mechanism Analysis of FAS-17-Modified SiO2/PDMS Coatings for High-Voltage Composite Insulators." Coatings 13, no. 3 (2023): 563. http://dx.doi.org/10.3390/coatings13030563.

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Pollution flashover on insulators is one of the greatest challenges affecting the smooth operation of high-voltage transmission lines. Demonstrating super-hydrophobic coatings on insulators’ interfaces is an effective measure to prevent insulator flashovers. In the present investigation, a super-hydrophobic FAS-17-modified SiO2/PDMS coating on a composite insulator was demonstrated by spraying. The coating had a contact angle of 159.2° and a sliding angle of 1.3° with better insulation properties. The prepared FAS-17-modified nano-SiO2 nanoparticles were not easy to agglomerate; to illustrate

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14

Warmi, Yusreni, Zulkarnaini Zulkarnaini, Abdul Rajab, et al. "Proposal of analysis method to reduce back-flashover rate taking account of tower footing resistance." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 1 (2023): 94. http://dx.doi.org/10.11591/ijece.v13i1.pp94-106.

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<span lang="EN-US">The number of lightning stroke on the tower of the 150 kV Koto Panjang-Payakumbuh transmission line located the rocky area has been observed. The high value of tower footing resistance indicates the occurrence of the back-flashover in the transmission line at intensity of 74%. The back-flashover occurrence is dominantly triggered by the tower footing resistance value. Also, the rate of back-flashover has an effect on the value of the tower footing resistance by considering the number of electrode installations. A design is proposed for the grounding system of the tower

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15

Yusreni, Warmi, Zulkarnaini, Rajab Abdul, et al. "Proposal of analysis method to reduce back-flashover rate taking account of tower footing resistance." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 1 (2023): 94–106. https://doi.org/10.11591/ijece.v13i1.pp94-106.

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The number of lightning stroke on the tower of the 150 kV Koto PanjangPayakumbuh transmission line located the rocky area has been observed. The high value of tower footing resistance indicates the occurrence of the back-flashover in the transmission line at intensity of 74%. The backflashover occurrence is dominantly triggered by the tower footing resistance value. Also, the rate of back-flashover has an effect on the value of the tower footing resistance by considering the number of electrode installations. A design is proposed for the grounding system of the tower footings in order to reduc

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16

Lin, Tianyu, Yongpeng Zhang, Zhijian Lu, et al. "Dielectric Surface Flashover under Long-Term Repetitive Microsecond Pulses in Compressed Gas Environment." Materials 14, no. 12 (2021): 3343. http://dx.doi.org/10.3390/ma14123343.

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As a key component of a high-power microwave (HPM) system, a multi-gap gas switch (MGS) has recently developed insulation failure due to surface flashover. Although design criteria for surface insulation have been put forward, it is still not clear how the insulation in this case deteriorated under long-term repetitive microsecond pulses (RMPs). In this paper, flashover experiments under RMPs were carried out on various dielectric surfaces between parallel-plane electrodes in SF6 and air atmospheres, respectively. Based on tests of the surface insulation lifetime (SIL), an empirical formula fo

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17

Li, Xiangxin, Ming Zhou, Yazhou Luo, Gang Wang, and Lin Jia. "Effect of Ice Shedding on Discharge Characteristics of an Ice-Covered Insulator String during AC Flashover." Energies 11, no. 9 (2018): 2440. http://dx.doi.org/10.3390/en11092440.

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Considering the ice shedding phenomena on ice-covered outdoor insulators, this paper conducted the artificial experiments by using a five-unit suspension ceramic insulator string covered with wet-grown ice to investigate the effects of ice shedding on the icing discharge characteristics. According to IEEE Standard 1783/2009, the minimum flashover voltage (VMF), propagation of discharges to flashover and related leakage current (LC) were measured. It was found that VMF after ice shedding can be increased by about 17% as compared with that before ice shedding. The initiation and formation of dis

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18

A., Ananth* M. Ravindran. "INVESTIGATION OF LEAKAGE CURRENT OF INSULATOR USING ARTIFICIAL NEURAL NETWORK." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 8 (2016): 667–72. https://doi.org/10.5281/zenodo.60115.

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In order to improve the reliability of power transmission lines, one of the key issues is to reduce the hazard of contamination flashovers. At the present time, the most efficient way is to clean (or replace) the heavily polluted insulators. This study laboratory based tests were carried out on the model under ac voltage at different pollution levels. A new model based on artificial neural network has been developed to predict flashover from the analysis of leakage current. The input variable to the artificial neural network are mean (I<sub>mean</sub>), maximum (I<sub>max</sub>), and standard

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19

A. Xemard, J. Michaud, F. Maciela, et al. "Reduction of the double-circuit flashovers on a 400 kV overhead line." Journal of Energy - Energija 60, no. 1-4 (2022): 16–25. http://dx.doi.org/10.37798/2011601-4256.

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Double circuit flashovers may cause very severe system disturbances when taking place on some critical double-circuit lines of an electrical network. Line arresters offer an efficient solution to protect these specific lines against double circuit outages due to lightning. This paper will study, on a double-circuit 400-kV line, the protection provided by line arresters against double circuit outages due to lightning. The efficiency of several configurations of line arresters will be compared. For that purpose, the double-circuit lightning flashover rates of the line with and without line arres

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20

Mousa, A. M. "Protecting firemen against fire-induced flashovers." IEEE Transactions on Power Delivery 5, no. 1 (1990): 297–302. http://dx.doi.org/10.1109/61.107288.

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21

Shindo, T., and T. Suzuki. "A method of predicting anomalous flashovers." IEEE Transactions on Power Delivery 10, no. 3 (1995): 1371–77. http://dx.doi.org/10.1109/61.400918.

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22

Liu, Wei, Yuanchao Hu, Haipeng Tian, et al. "Research on Lightning Overvoltage Protection of Line-Adjacent Pipelines Based on Solid-State Decoupling." Applied Sciences 13, no. 22 (2023): 12529. http://dx.doi.org/10.3390/app132212529.

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Existing transmission lines and pipelines are frequently crossed and erected in parallel, meaning that if lightning strikes a wire and causes insulator flashovers, the resulting lightning current will spread through the grounding of the tower where the flashover insulator is located. This dispersion of current can lead to overvoltage effects on nearby pipelines. This study performs simulation calculations to analyze the overvoltage experienced by pipelines due to the dispersion of grounding current from the tower. Furthermore, this paper proposes a method for protecting the pipeline from such

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23

Burnham, J. T. "Bird streamer flashovers on FPL transmission lines." IEEE Transactions on Power Delivery 10, no. 2 (1995): 970–77. http://dx.doi.org/10.1109/61.400832.

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24

Gini, Irene, Alessandra Balzarini, Guido Pirovano, et al. "On the Chemical Composition and Hygroscopicity of Aerosols Deposited on the Insulators of Italian Power Lines." Applied Sciences 13, no. 23 (2023): 12788. http://dx.doi.org/10.3390/app132312788.

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The reliability of the national power grid is a key issue in modern society. Atmospheric aerosols are the main cause of the reduction in the performance of insulators and the increase in the possibility of flashovers, resulting in power line failures. Under high ambient humidity, the water-soluble compounds of atmospheric aerosols collected on the insulators’ surface can dissociate in ions and form a conductive layer, which may lead to flashover events. With a view to investigating the processes that drive these phenomena, the chemical composition of aerosol deposits on insulators in Italy was

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E. Usachev, Aleksandr, Danil M. Yuditsky, Rustem S. Kashaev, and Abdulrahman M. Ba Boraik. "Shape of overvoltage waves arising at lightning strokes to overhead transmission lines." International Journal of Engineering & Technology 7, no. 4.36 (2018): 95–97. http://dx.doi.org/10.14419/ijet.v7i4.36.23322.

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This article shows the cause of arising overvoltage thunderstorm waves on overhead transmission lines (OTL) with nanosecond leading fronts. The algorithm is given to estimate the duration of the leading front in the case of back-flashovers from the tower to the phase conductors.Â Â

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26

Jiang, Kaihua, Jinhua Zhu, Xianjun Shao, Shaohua Wang, Te Li, and Zhenguo Wang. "Research on lighting fault identification technology of transmission lines based on non-contact sensing." Journal of Physics: Conference Series 2479, no. 1 (2023): 012043. http://dx.doi.org/10.1088/1742-6596/2479/1/012043.

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Abstract According to field operation records, lightning stroke accounts for 60% of transmission line failures. Therefore, it is of great significance to strengthen lightning protection of the power system. However, there are several lightning faults, and the corresponding protection methods differ. Consequently, identifying lightning stroke faults will be beneficial to take corresponding lightning protection measures. This paper investigates the mechanism of different lightning strike faults, and simulates them by a 110kV transmission line EMTP-ATP model. Analysis and simulation show that the

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27

Zheng, Lei, Pengxiang Yin, Jian Li, Hui Liu, Tao Li, and Hao Luo. "Research on Diagnostic Methods for Zero-Value Insulators in 110 kV Transmission Lines Based on Spatial Distribution Characteristics of Electric Fields." Energies 18, no. 6 (2025): 1534. https://doi.org/10.3390/en18061534.

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Porcelain insulators in power systems are subject to prolonged mechanical and electrical loads, as well as environmental factors such as climate variations. These conditions often lead to degradation of insulation performance and structural damage, resulting in a decrease in insulation resistance and the formation of cracks, which in turn produce “zero-value” insulators. The presence of zero-value insulators significantly increases the risk of pollution flashovers and electrical arcing, with flashover occurrences possible even under normal operating voltages. This poses a severe threat to the

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Ishikawa, Kouichi, Hiroshi Kageyama, Yasuhiro Yamada, Ryosuke Matsuoka, Susumu Ito, and Kenji Sakanishi. "Investigation of Single Unit Flashovers in HVDC Insulator Strings." IEEE Power Engineering Review 16, no. 10 (1996): 60–61. http://dx.doi.org/10.1109/mper.1996.4311034.

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Kizilcay, M., K. Teichmann, A. Agdemir, and G. Kaflowski. "Flashovers at a 33-kV filter reactor during energization." Electric Power Systems Research 79, no. 3 (2009): 492–97. http://dx.doi.org/10.1016/j.epsr.2008.09.012.

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Ishikawa, K., H. Kageyama, Y. Yamada, R. Matsuoka, S. Ito, and K. Sakanishi. "Investigation of single unit flashovers in HVDC insulator strings." IEEE Transactions on Power Delivery 11, no. 4 (1996): 1888–94. http://dx.doi.org/10.1109/61.544272.

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Yang, Fan, Yuchen Zhang, Xingwang Wu, and Jie Wu. "Study on the Partial Surface Discharge Process of Oil-Paper Insulated Transformer Bushing with Defective Condenser Layer." Applied Sciences 13, no. 13 (2023): 7621. http://dx.doi.org/10.3390/app13137621.

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Oil-impregnated paper condenser transformer bushings are an important part of transformer equipment, and partial discharge (PD) occurred when defects exist on the condenser aluminum foil layers. Firstly, to study the PD process of the oil-paper insulated capacitance graded bushing with the defect of broken aluminum foil, a defective oil-paper bushing discharge sample is constructed to study the PD parameters and capacitance, and to discharge carbonization traces at different voltage levels. Then, in order to verify the process of condenser aluminum foil layer discharge and the space charge var

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32

Wang, Da Xing, Shou Bao Liu, Tao Cui, An Xu, and Bin He. "Research on Technology of Lightning Protection for Transmission Lines in Lighting Intensified Area with Complex Topography." Applied Mechanics and Materials 635-637 (September 2014): 1147–50. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.1147.

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The weak lighning protection performance of transmission lines should be improved in complicate climate and complex topography as well as frequent lightning activities in Sichuan Area. In order to improve stability of power system, it is very important to improve the assessment and rebuilding abilitiy of lightning protection for transmission lines. In this paper, we researched the lightning protection of transmission lines by the technology and strategy of differentiated lightning protection. We analyzed the distribution law of lightning flashovers for tower span, landform, lightning protectio

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Yi, Jun, Hong Ming Yang, Ming Yong Lai, and Shu Kui Li. "The Insulator’s Pollution Raining Flashover Forecast under GARCH-Based Forecast of Rainstorm Disasters1." Advanced Materials Research 143-144 (October 2010): 566–70. http://dx.doi.org/10.4028/www.scientific.net/amr.143-144.566.

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In this paper,it proposes insulator flashover probability prediction model based on Markov chain and ARMA-GARCH. It provides a foundation for risk evaluation of rainstorm of power system. First,this model daily precipitation forecasting model which combined Markov chain with ARMA-GARCH based on self-dependency and time-varying of atmosphere factor; and then according to rainfall’s impact on insulator’s pollution raining flashover,the paper raises the probability prediction model of insulator flashover;Ultimately, we can predict the insulator flashover’s probability. Through Historical data of

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Ito, T., T. Ueda, H. Watanabe, T. Funabashi, and A. Ametani. "Lightning flashovers on 77-kV systems: observed voltage bias effects and analysis." IEEE Transactions on Power Delivery 18, no. 2 (2003): 545–50. http://dx.doi.org/10.1109/tpwrd.2003.809683.

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Li, Shengtao, Weiwang Wang, Shihu Yu, and Jianying Li. "Degradation of cross linked polystyrene by repetitive impulse surface flashovers in vacuum." IEEE Transactions on Dielectrics and Electrical Insulation 20, no. 5 (2013): 1934–41. http://dx.doi.org/10.1109/tdei.2013.6633727.

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Gortler, A., J. Christiansen, R. Dotzer, and K. Frank. "Investigations of pulsed surface flashovers for the triggering of pseudospark high-power switches." IEEE Transactions on Plasma Science 17, no. 5 (1989): 762–65. http://dx.doi.org/10.1109/27.41198.

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Vidya M. S. "Electric Field Computation of Stranded Over-Head Transmission Line Conductors Under the Application of Lightning Over Voltages." International Journal of Innovative Technology and Exploring Engineering 14, no. 5 (2025): 1–5. https://doi.org/10.35940/ijitee.e4610.14050425.

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Efficient design of insulation systems always relies upon accuracy in the assessment of the electric field of the electrode geometry. In overhead transmission lines, stranded conductors are often used to reduce the inductance and increase the mechanical strength. Transmission lines are subjected to power frequency and lightning flashovers which need careful analysis of electric and critical fields before erection. The dependence of maximum electric field intensity under power frequency and lightning impulse, for stranded conductors of different strands using Aluminum conductor steel reinforced

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Vidya, M. S. "Electric Field Computation of Stranded Over-Head Transmission Line Conductors Under the Application of Lightning Over Voltages." International Journal of Innovative Technology and Exploring Engineering (IJITEE) 14, no. 5 (2025): 1–5. https://doi.org/10.35940/ijitee.E4610.14050425.

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<strong>Abstract:</strong> Efficient design of insulation systems always relies upon accuracy in the assessment of the electric field of the electrode geometry. In overhead transmission lines, stranded conductors are often used to reduce the inductance and increase the mechanical strength. Transmission lines are subjected to power frequency and lightning flashovers which need careful analysis of electric and critical fields before erection. The dependence of maximum electric field intensity under power frequency and lightning impulse, for stranded conductors of different strands using Aluminum

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Xue, Naifan, Bei Li, Yuan Wang, et al. "Spatial-Temporal Kinetic Behaviors of Micron-Nano Dust Adsorption along Epoxy Resin Insulator Surfaces and the Physical Mechanism of Induced Surface Flashover." Polymers 16, no. 4 (2024): 485. http://dx.doi.org/10.3390/polym16040485.

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The advanced Gas Insulated Switchgear/Gas Insulated Lines (GIS/GIL) transmission equipment serves as an essential physical infrastructure for establishing a new energy power system. An analysis spanning nearly a decade on faults arising from extra/ultra-high voltage discharges reveals that over 60% of such faults are attributed to the discharge of metal particles and dust. While existing technical means, such as ultra-high frequency and ultrasonic sensing, exhibit effectiveness in online monitoring of particles larger than sub-millimeter dimensions, the inherent randomness and elusive nature o

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MacLeod, Morgan L., Thomas G. Sharp, Mark S. Robinson, and Andrew P. Jordan. "Deep Dielectric Breakdown of Silicates: Microstructural Damage and Implications for Lunar Space Weathering." Planetary Science Journal 4, no. 12 (2023): 246. http://dx.doi.org/10.3847/psj/ad04e1.

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Abstract Solar energetic particle events electrically charge the lunar surface and may produce electric fields sufficient to induce dielectric breakdown in regolith grains. We irradiated series of silicate minerals with electrons to determine their physical and chemical response to deep dielectric charging and subsequent breakdown. Two electrical phenomena, flashovers and subsurface dielectric breakdown, produced damage including erosional and eruptive channels, surface pits, comminuted grains, and melt and vapor deposits. Iron abundances strongly affected the scale of damage and the minimum f

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Matsumoto, Yasuhiro, Osamu Sakuma, Kazuo Shinjo, Hiromitsu Taniguchi, Hitoshi Sugimoto, and Tsutomu Sakai. "Observation of Back Flashovers on the Okushishiku Test Transmission Line Struck by Natural Lightning." IEEJ Transactions on Power and Energy 116, no. 1 (1996): 122–23. http://dx.doi.org/10.1541/ieejpes1990.116.1_122.

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Hu, Duo, Chengyan Ren, Fei Kong, Cheng Zhang, Tao Shao, and Ping Yan. "Aging characteristics of polymeric materials by repeated surface flashovers in vacuum under microsecond pulse." IEEE Transactions on Dielectrics and Electrical Insulation 26, no. 1 (2019): 171–78. http://dx.doi.org/10.1109/tdei.2018.007472.

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Hama, Hiroyuki, Kiyoshi Inami, Manabu Yoshimura, and Koichiro Nakanishi. "Estimation of breakdown voltages of surface flashovers initiated from triple junction in SF6 gas." Electrical Engineering in Japan 116, no. 5 (1996): 1–17. http://dx.doi.org/10.1002/eej.4391160501.

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Razzaghi, R., M. Scatena, K. Sheshyekani, M. Paolone, F. Rachidi, and G. Antonini. "Locating lightning strikes and flashovers along overhead power transmission lines using electromagnetic time reversal." Electric Power Systems Research 160 (July 2018): 282–91. http://dx.doi.org/10.1016/j.epsr.2018.03.012.

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Ivo Uglešić, Miroslav Křepela, and Viktor Milardić. "Solving EMC problems in the design of new HV test laboratory." Journal of Energy - Energija 59, no. 1-4 (2022): 77–82. http://dx.doi.org/10.37798/2010591-4281.

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The paper deals with solving electromagnetic compatibility (EMC) problems in the design of a new, case study, industrial high voltage test laboratory, intended to be used for testing of transformers and other apparatus up to 550 kV rated voltage. Modern high voltage test facilities are equipped, apart from primary test devices like AC, DC and impulse voltage generators etc., also with sophisticated numerical measuring instruments and informatics technology. Since such devices are sensitive to transient overvoltages, the highest degree of EMC is to be secured. This can be achieved by proper ear

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Su, Huafeng, Zhidong Jia, Zhenting Sun, Zhicheng Guan, and Licheng Li. "Field and laboratory tests of insulator flashovers under conditions of light ice accumulation and contamination." IEEE Transactions on Dielectrics and Electrical Insulation 19, no. 5 (2012): 1681–89. http://dx.doi.org/10.1109/tdei.2012.6311516.

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Michel, A. "Frequency of flashovers of clearances in low-voltage ac power circuits due to overvoltage waves." European Transactions on Electrical Power 5, no. 1 (2007): 15–22. http://dx.doi.org/10.1002/etep.4450050103.

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Lucchini, F., and N. Marconato. "Accelerating the charge inversion algorithm with hierarchical matrices for gas insulated systems." Journal of Physics: Conference Series 2090, no. 1 (2021): 012136. http://dx.doi.org/10.1088/1742-6596/2090/1/012136.

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Abstract Surface charges accumulating on dielectrics during long-time operation of Gas Insulated High Voltage Direct Current (HVDC-GIS) equipments may affect the stable operation and could possibly trigger surface flashovers. In industrial applications, to quantify and identify the location of the surface charge accumulation from experimental measurements, the surface potential distribution is evaluated using, e.g., electrostatic probes, then the charge density is determined by solving an electrostatic problem based on an inversion procedure known as Charge Inversion Algorithm. The major pract

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Maraaba, Luqman, Khaled Al-Soufi, Twaha Ssennoga, Azhar M. Memon, Muhammed Y. Worku, and Luai M. Alhems. "Contamination Level Monitoring Techniques for High-Voltage Insulators: A Review." Energies 15, no. 20 (2022): 7656. http://dx.doi.org/10.3390/en15207656.

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Insulators are considered one of the most significant parts of power systems which can affect the overall performance of high-voltage (HV) transmission lines and substations. High-voltage (HV) insulators are critical for the successful operation of HV overhead transmission lines, and a failure in any insulator due to contamination can lead to flashover voltage, which will cause a power outage. However, the electrical performance of HV insulators is highly environment sensitive. The main cause of these flashovers in the industrial, agricultural, desert, and coastal areas, is the insulator conta

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Mohammed Alsumaidaee, Yaseen Ahmed, Chong Tak Yaw, Siaw Paw Koh, et al. "Detection of Corona Faults in Switchgear by Using 1D-CNN, LSTM, and 1D-CNN-LSTM Methods." Sensors 23, no. 6 (2023): 3108. http://dx.doi.org/10.3390/s23063108.

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The damaging effects of corona faults have made them a major concern in metal-clad switchgear, requiring extreme caution during operation. Corona faults are also the primary cause of flashovers in medium-voltage metal-clad electrical equipment. The root cause of this issue is an electrical breakdown of the air due to electrical stress and poor air quality within the switchgear. Without proper preventative measures, a flashover can occur, resulting in serious harm to workers and equipment. As a result, detecting corona faults in switchgear and preventing electrical stress buildup in switches is

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