Relevant bibliographies by topics / Diagnostics polymer insulation

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Diagnostics polymer insulation'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Diagnostics polymer insulation"

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G., V. Bezprozvannych, and A. Kostiukov I. "A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES." Electrical engineering & electromechanics, no. 2 (April 16, 2020): 52–58. https://doi.org/10.20998/2074-272X.2020.2.08.

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<strong><em>Introduction.&nbsp;</em></strong><em>In the objects of control there are always a number of interfaces, for example, solid insulation &ndash; electrode. On contacting surfaces, free surface charges are transferred. Surface conductivity leads to fluctuations in the measured values of the capacitance and the tangent of the dielectric loss angle of solid insulation, the state of which is determined. The drain off of the surface charge does not lead to a decrease in the scatter of the measured dielectric absorption parameters. One of the main reasons for the significant time spread of
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Szamel, Laszlo, and Jackson Oloo. "Monitoring of Stator Winding Insulation Degradation through Estimation of Stator Winding Temperature and Leakage Current." Machines 12, no. 4 (2024): 220. http://dx.doi.org/10.3390/machines12040220.

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Switched Reluctance Motors (SRMs), Permanent Magnet Synchronous Motors (PMSMs), and induction motors may experience failures due to insulation-related breakdowns. The SRM rotor is of a non-salient nature and made of solid steel material. There are no windings on the rotor. However, the stator is composed of windings that are intricately insulated from each other using materials such as enamel wire, polymer films, mica tapes, epoxy resin, varnishes, or insulating tapes. The dielectric strength of the insulation may fail over time due to several environmental factors and processes. Dielectric br
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Golovko, Sergey Vladimirovich, and Julia Aleksandrovna Golovko. "Software and hardware complex based on technical vision for diagnosing electrical insulators." Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics 2022, no. 3 (2022): 30–37. http://dx.doi.org/10.24143/2072-9502-2022-3-30-37.

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Control of the equipment dielectric insulation is one of the most important types of diagnostics in operation of the electrical networks, because the defects cause ionization of voids and partial corona discharges. These discharges gradually destroy the insulation causing the energy loss, radio interference and decreasing the fire safety of the operated electrical equipment. Common failures of electrical insulators are breakdowns, overlaps and mechanical damage. The need to determine the resistance against the surface discharges increases in case of using the new polymer materials due to their
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Usachev, A. E., and A. Yu Kubarev. "Problems of Insulation Diagnostics of Power Equipment by the Method of Partial Discharges." E3S Web of Conferences 288 (2021): 01077. http://dx.doi.org/10.1051/e3sconf/202128801077.

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Target. High information value and reliability of diagnostics of isolation by partial discharges. Methods. Simulation of PD in Multisim and calculation of electrical fields of insulation defects by finite element method in the program ComSol. Results. A strong influence of the power supply on the value of voltage surge in case of emergency has been established. The method of adjustment of this influence is proposed. It was found that the oscillatory form of the PD is mainly determined not by the parameters of the insulation defect, but by the parameters of the energy object in which this defec
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Mushi, Aviti, Jackson Justo, and Alexander Kyaruzi. "Studying Dielectric Losses of Serially Combined Silicone Rubber and Epoxy Resin." Tanzania Journal of Engineering and Technology 42, no. 1 (2023): 85–96. http://dx.doi.org/10.52339/tjet.v42i1.891.

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High voltage outdoor insulation systems are conventionally ceramics and glass with several advantages, such as proven in the field, excellent dielectric properties, durability, and long life. However, they are heavy, attract vandals and break easily, and they can lose their dielectric properties easily when subjected to high voltage transients, arcing, and surges. To curb this, polymer insulators are used because they have excellent dielectric properties, such as those of ceramics and glass, with the added advantages that they do not break easily and recover their lost dielectric properties af
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Zaripov, D. K., R. A. Nasibullin, D. F. Zakirov, and A. V. Zakharov. "Study of operation of a polymer insulator under uniform and non-uniform contamination." Power engineering: research, equipment, technology 25, no. 5 (2024): 20–29. http://dx.doi.org/10.30724/1998-9903-2023-25-5-20-29.

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RELEVANCE. Suspended insulators, the technical condition of which largely determines the reliability of power supply to consumers of different categories, are one of the most damaged elements of overhead power transmission lines [1-2]. This is primarily due to the fact that during their operation, insulators are exposed to various climatic conditions that have a direct impact on their insulating properties. Moreover, precipitation, such as rain, fog or dew, has the greatest impact precisely in combination with various solid, liquid and gaseous particles deposited on the insulator surface from
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Schurch, Roger, Osvaldo Munoz, Jorge Ardila-Rey, Pablo Donoso, and Vidyadhar Peesapati. "Identification of Electrical Tree Aging State in Epoxy Resin Using Partial Discharge Waveforms Compared to Traditional Analysis." Polymers 15, no. 11 (2023): 2461. http://dx.doi.org/10.3390/polym15112461.

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Electrical treeing is one of the main degradation mechanisms in high-voltage polymeric insulation. Epoxy resin is used as insulating material in power equipment such as rotating machines, power transformers, gas-insulated switchgears, and insulators, among others. Electrical trees grow under the effect of partial discharges (PDs) that progressively degrade the polymer until the tree crosses the bulk insulation, then causing the failure of power equipment and the outage of the energy supply. This work studies electrical trees in epoxy resin through different PD analysis techniques, evaluating a
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Gladkikh, Irina F., Tatyana V. Dmitrieva, Dmitry E. Bugai, and Maksim A. Gladkikh. "INFLUENCE OF BITUMEN-POLYMER AND ASMOL MASTIC COMPOSITIONS ON QUALITY INDICATORS OF MATERIALS FOR ANTI-CORROSION INSULATION OF OIL AND GAS PIPELINES." Oil and Gas Business, no. 4 (September 14, 2023): 17–39. http://dx.doi.org/10.17122/ogbus-2023-4-17-39.

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Underground pipelines operating experience shows that their operating life and reliability largely depend on effectiveness of metal corrosion protection, both internal and external surfaces. In the latter case, along with electrochemical protection, insulation coatings play an important role. In recent years, there has been a trend to use factory-insulated pipes. Its advantages are obvious: high-quality preparation of pipe surface, strict control over compliance with the technological mode of application. However, in some cases it is impossible to do without field coating: during overhaul, dia
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Tran, Clara T., Rajesh Ganesan, and David R. McKenzie. "Quantifying plasma immersion ion implantation of insulating surfaces in a dielectric barrier discharge: how to control the dose." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 474, no. 2215 (2018): 20180263. http://dx.doi.org/10.1098/rspa.2018.0263.

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The plasma physics of dielectric barrier discharges (DBD) for carrying out ion implantation in insulators is investigated. A hollow cathode DBD excited by high-voltage pulses is suitable for ion bombardment of the surfaces of insulating tubing, porous material, particles and sheets. Plasma immersion ion implantation of insulating surfaces is useful for many applications in medicine and engineering. The ion bombardment of glass is useful for cleaning and surface modification. The ion implantation of polymers creates radicals that are able to bind molecules to their surfaces for applications in
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Vitulo, Paolo, Michele Zanoletti, Riccardo Morina, et al. "The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites." Materials 15, no. 11 (2022): 3829. http://dx.doi.org/10.3390/ma15113829.

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An experimental method exploiting the capacitive response of most materials is here revised. The procedure called the “Voltage Ramp Method” (VRM) is based on applying proper voltage ramp cycles over time and measuring electrical current intensity flowing through the material sample. In the case of an ideal capacitor, a current plateau should be easily measured, and the capacitance value precisely determined. However, most media, e.g., semiconductors and insulating polymers, show dielectric absorption and hence electric leakage effects. Therefore, the VRM method allows simultaneous determinatio
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Dissertations / Theses on the topic "Diagnostics polymer insulation"

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Бойко, Антон Миколайович. "Діагностика полімерної ізоляції в процесі старіння кабелів під дією сильного електричного поля за трибоелектричним потенціалом". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/19647.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.09.13 – техніка сильних електричних та магнітних полів. Національний технічний університет "Харківський політехнічний інститут", Харків, 2015. Дисертація присвячена розробці та обґрунтуванню діагностики за трибоелектричним потенціалом для виявлення зміни поверхневих властивостей полімерної ізоляції в процесі старіння кабелів під дією сильного електричного поля, підвищеної температури та іонізуючого випромінювання. В процесі старіння для двошарової ізоляції на основі застосування схеми заміщення встановлено по
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Бойко, Антон Миколайович. "Діагностика полімерної ізоляції в процесі старіння кабелів під дією сильного електричного поля за трибоелектричним потенціалом". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/19642.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.09.13 – техніка сильних електричних та магнітних полів. Національний технічний університет "Харківський політехнічний інститут", Харків, 2015. Дисертація присвячена розробці та обґрунтуванню діагностики за трибоелектричним потенціалом для виявлення зміни поверхневих властивостей полімерної ізоляції в процесі старіння кабелів під дією сильного електричного поля, підвищеної температури та іонізуючого випромінювання. В процесі старіння для двошарової ізоляції на основі застосування схеми заміщення встановлено п
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Conference papers on the topic "Diagnostics polymer insulation"

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Muzik, Martin, Pavel Trnka, Jaroslav Hornak, Ondrej Michal, and Vaclav Mentlik. "Compatibility of polymer materials with natural-based insulation oils." In 2020 International Conference on Diagnostics in Electrical Engineering (Diagnostika). IEEE, 2020. http://dx.doi.org/10.1109/diagnostika49114.2020.9214769.

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Afia, Ramy S. A., Ehtasham Mustafa, and Zoltan Adam Tamus. "Mechanical Stresses on Polymer Insulating Materials." In 2018 International Conference on Diagnostics in Electrical Engineering (Diagnostika). IEEE, 2018. http://dx.doi.org/10.1109/diagnostika.2018.8526097.

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Hirte, Henry, Stefan Kornhuber, Sebastian Braun, and Peter Werle. "Review on Space Charge Induced Aging and Voltage Endurance Tests of Polymeric Insulating Materials Under High DC Voltage." In 2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika). IEEE, 2022. http://dx.doi.org/10.1109/diagnostika55131.2022.9905143.

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Zhuravleva, G. N., I. V. Nagornova, A. P. Kondratov, E. B. Bablyuk, and L. G. Varepo. "Environmental durability diagnostic for printed identification codes of polymer insulation for distribution pipelines." In OIL AND GAS ENGINEERING (OGE-2017). Author(s), 2017. http://dx.doi.org/10.1063/1.4998897.

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Hernandez-Corona, Ramiro, and Gerardo Montoya-Tena. "In-service diagnostic of polymeric insulators exposed to severe contamination." In 2007 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena. IEEE, 2007. http://dx.doi.org/10.1109/ceidp.2007.4451580.

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Camilleri, Lawrence, Arthur Watson, Yan Liu, and Mohammed El-Gindy. "Keep Your ESPs Running: Case Studies Exhibiting a Holistic Methodology for Run-Life Improvement." In SPE Gulf Coast Section Electric Submersible Pumps Symposium. SPE, 2021. http://dx.doi.org/10.2118/204483-ms.

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Abstract Build a more robust ESP or reduce the stress it endures? Run-life improvement requires finding the right balance to suit the local well conditions and economics. Utilizing key case studies, the paper examines how operational stress caused by low flow rates can be avoided with the correct utilization of instrumentation, surveillance, and automation thereby providing practical solutions for extending the run life of already installed ESPs. The method starts with an extensive review of ESP failure mechanisms and their causes, supported by case studies and pictures illustrating the sympto
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Yin, Jungang, Runqi Wu, Jian Yang, and Xiangdong Xu. "Online Diagnostic Ultra-Wideband Antenna System in High Voltage Polymeric Insulator." In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. IEEE, 2019. http://dx.doi.org/10.1109/apusncursinrsm.2019.8888521.

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Hess, Katherine C., William K. Epting, and Shawn Litster. "In Situ Measurements of Through-Plane, Ionic Potential Distributions in Porous Electrodes." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33169.

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We present a novel apparatus for gathering in situ measurements of through-plane, ionic potential distributions in the porous electrodes of a polymer electrolyte membrane (PEM) fuel cell. Our diagnostic method uses a micro-structured electrode scaffold (MES) that is comprised of alternating layers of insulating and sensing materials into which a 100 μm diameter hole is micro-milled and then filled with catalyst ink. Using the MES, we performed a polarization curve experiment where the ionic potential was measured within a 50 μm thick catalyst layer at 8 and 24 μm from membrane. Our results sho
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