Academic literature on the topic 'Grid corrosion'

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Journal articles on the topic "Grid corrosion"

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Zhang, Cheng, Yuxiang Liao, Xue Gao, Jing Zhao, Yuan Yuan, and Ruijin Liao. "Research Advances of Soil Corrosion of Grounding Grids." Micromachines 12, no. 5 (May 2, 2021): 513. http://dx.doi.org/10.3390/mi12050513.

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A grounding grid plays the role of discharging current and balancing voltage to ensure the safety of the power system. However, soil corrosion can damage the grounding grid, which then can endanger the safe operation of power system. This paper reviewed recent research advances of soil corrosion of grounding grid. The cause, mechanism, types, and influencing factors of soil corrosion of grounding grids were summarized, and the corresponding detection technology and protective measures were also introduced. The paper pointed out that soil corrosion is a serious threat to the grounding grid system. Moreover, the impact mechanism of AC stray current, new corrosion detection technology, and better protective measures still need in-depth research.
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Pei, Feng, Jing Fu, Fa Yuan Wu, Lei Jing Wang, Xiao Lei Liu, Zhao Hui Yin, and Zhi Ping Zhu. "Electrochemical Evaluation Method for Soil Corrosion Properties in Grid Substation." Applied Mechanics and Materials 295-298 (February 2013): 811–14. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.811.

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Soil corrosion is the main reason of corrosion failure for substation grounding grids. To explore electrochemical evaluation method for soil corrosion of substation grounding grids would effectively ensure the safe operation of power grids. This paper discussed the main several kinds of soil corrosive electrochemical research methods and application. These methods played an important role on researching soil corrosion mechanism, soil corrosivity and corrosion behavior.
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Ren, Zhenxing, Daowu Yang, Jun Liu, Yong Ma, Zhongtang Huo, and Shaochang Zheng. "The protection of 500kV substation grounding grids with combined conductive coating and cathodic protection." Anti-Corrosion Methods and Materials 62, no. 2 (March 2, 2015): 83–87. http://dx.doi.org/10.1108/acmm-10-2013-1311.

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Purpose – The purpose of the paper was to design an anti-corrosion system that combined conductive coatings with cathodic protection for a 500-kV substation ground grid, and provide a basis for the anti-corrosion construction of the installation. Design/methodology/approach – The study took the Shaoguan 500-kV substation grounding grid as the research object. The anti-corrosion performance of KV conductive coatings on grounding metal was researched. In parallel, the alkalinity of substation soil was evaluated according to the German DIN50929 Standard, and the combined protection system comprising conductive coatings and impressed current cathodic protection was designed. Findings – KV conductive coatings, that have resistance to acids, alkalis and salts, can effectively slow down the corrosion rate of the grounding grid. The investigation also provided the outline design, installation, construction requirements and monitoring methods for the 500-kV substation grounding grid. Originality/value – This report contains some guiding significance for anti-corrosion engineering of 500-kV substation grounding grids.
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Du, Jingyi, Liqian Yan, Haixia Wang, and Qiong Huang. "Research on grounding grid corrosion classification method based on convolutional neural network." MATEC Web of Conferences 160 (2018): 01008. http://dx.doi.org/10.1051/matecconf/201816001008.

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Aiming at the problem that the traditional detection methods can not accurately classify the corrosion degree of grounding grids. The corrosion image is taken as the research object, the convolution neural network is used as the algorithm firstly to classify the corrosion degree. Firstly, the corrosion simulation experiment was carried out, and the sample library was established by using the corrosion image collected in different stages. Then, according to the LeNet-5 model, the traditional CNN and improved CNN models were designed for corrosion classification of grounding grid. Simulation experiments were carried out in the preprocessed samples. Finally, the experimental results of Soft-max and SVM classifier are compared and analyzed. The results show: the classification results of the two models were better than those of the original samples, and the classification performance of SVM is better than that of Soft-max. The improved model can improve classification accuracy. This study fills the blank of detecting the corrosion degree of grounding grid by image method, and it is significant to quickly grasp the corrosion degree to avoid faults or accidents.
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Zhang, Yifeng, Wei Chen, Hanbing Yan, Xuefeng Wang, Hanping Zhang, and Shijing Wu. "The Effect of Atmospheric Chloride Ions on the Corrosion Fatigue of Metal Wire Clips in Power Grids." Atmosphere 14, no. 2 (January 25, 2023): 237. http://dx.doi.org/10.3390/atmos14020237.

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Corrosion fatigue is an important factor that limits the life of grid materials including wire clips. In order to study the effect of corrosion fatigue and to select suitable grid steels, this paper focuses on the corrosion fatigue properties of Q235 carbon steel, Q235 galvanized steel, and 316L stainless steel in the corrosive environments of air, 2wt% NaCl, 5wt% NaCl, and 8wt% NaCl. Through the fatigue test in the corrosive environment, and the surface morphology scanning and microstructure observation of the fracture, the following conclusions are drawn: the three materials are more susceptible to corrosion fatigue in the Cl− environment, and the higher the Cl− concentration, the greater the likelihood of fracture caused by corrosion fatigue for these three materials. By analyzing the surface roughness, dimples, and cracks in the microstructure, it is found that 316L stainless steel is highly sensitive to Cl− corrosion under cyclic stress, and Q235 galvanized steel is more resistant to Cl−. By plotting the stress fatigue life curve of Q235 galvanized steel, it is found that the corrosion fatigue life decreases as the Cl− concentration increases. For wire clips in areas with severe Cl− pollution, Q235 galvanized steel should be selected to achieve the best anti-corrosion fatigue effect; at the same time, the original parts should be repaired or replaced in a timely manner based on the predicted corrosion fatigue life.
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Song, Linbo, Cheng Zhang, Jing Zhao, Rui Yang, and Yuan Yuan. "Influence of Current on Soil Corrosion of Galvanized Steel of Grounding Grids." Micromachines 13, no. 2 (January 26, 2022): 190. http://dx.doi.org/10.3390/mi13020190.

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Grounding grid materials are vulnerable to soil corrosion, which is detrimental to the safe operation of the grounding grids and even lead to serious accidents of power transmission. In this paper, galvanized steel was used as the typical grounding grid material which was buried in the soil and then electrified with AC and DC current for two weeks. The corroded samples under different current conditions were characterized and compared. The experimental results show that the corrosion degree of galvanized steel gradually aggravated with the increasing of the current, especially under DC current. Further, the mechanism of the influence of current on soil corrosion is explored. It is found that under the same magnitude of current, the corrosion degree of galvanized steel under DC current is greater than that under AC current.
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Yan, Feng Jie, Xing Geng Li, and Xue Gang Wang. "The Corrosion Behavior of Galvanized Steel in Alkaline Soil." Applied Mechanics and Materials 331 (July 2013): 416–20. http://dx.doi.org/10.4028/www.scientific.net/amm.331.416.

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The grounding grid of some substation shows severely corrosion, which affects the safe running of power grid. Galvanized steel is widely used in grounding grid. However, the galvanized steel is easy to corrosion in alkaline soil. In this paper, the corrosion behavior of galvanized steel was studied through accelerated corrosion test of burying specimens in laboratory soils and the corrosion rate was measured by electrochemical test. The corrosion products and corrosion appearance were analyzed by means of SEM, and XRD. The results show that pitting corrosion and localized corrosion were observed on the surface of the galvanized steel, the corrosion products were rough and loose, indicating no protection, the corrosion products of galvanized steel were ZnO,FeO(OH),FeCl3,Zn3O(SO4)2,and ZnSO3·2.50H2O. Electrochemical test show that the corrosion rate of galvanized steel in the later corrosion stage is higher than in the initial corrosion stage.
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Cui, Jiang Xia, and Jing Yi Du. "Evaluation Study of Grounding Grids Based on Gray Clustering." Applied Mechanics and Materials 433-435 (October 2013): 550–54. http://dx.doi.org/10.4028/www.scientific.net/amm.433-435.550.

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Grounding grid is an important device which ensures the safe operation of substation. Its corrosion is influenced by various factors and the influence of these factors is varied. It is difficult to infer the relationship between the corrosion rate and its influencing factors, so this paper apply the grey clustering method of grey system theory in the grounding grid corrosion and gives an application instance and realizes it by MATLAB. The results demonstrate the practicality and effectiveness of the method mentioned in this paper. This method can provide reference for high reliability for related departments in the implementation of emergency situation due to grounding grid corrosion.
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Dai, Fen Lei, and Wen Qiang Xie. "The Progressive Optimization Model on the Corrosion Rate of the Grounding Grid." Advanced Materials Research 712-715 (June 2013): 1090–95. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1090.

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Established a cross-validation of the model optimization algorithm in order to predict the corrosion rate of the grounding grid. Forward neural network input variables by principal component analysis to extract the main element, eliminating the correlation between variables; cross-validation method and change the termination of the neural network training conditions, the selection of network training model. The final simulation results show that, get a good grounding grid corrosion rate stability and generalization performance optimization prediction model can predict the corrosion rate of the grounding grid.
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Huang, H., Y. C. Liu, Y. Xing, J. R. Wu, X. Y. Mao, Y. Y. Wu, and M. F. Peng. "Corrosion Mechanism and Corrosion State Detection Method of the Grounding Grid." IOP Conference Series: Materials Science and Engineering 486 (July 10, 2019): 012085. http://dx.doi.org/10.1088/1757-899x/486/1/012085.

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Dissertations / Theses on the topic "Grid corrosion"

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Rozbroj, Lukáš. "Diagnostika železobetonového mostu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227490.

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This thesis contains diagnostics of a reinforced concrete girder bridge in the municipality of Újezd u Brna. The aim is to conduct an inspection of the bridge, gather quality photo-documentation of defects and failures and design and conduct a diagnostic examination of such extent that would be necessary for judging the load bearing capacity of the bridge. The result of this thesis is the determined load bearing capacity and a proposal of measures required to keep the bridge functional.
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Enegela, Odagboyi. "Ageing of overhead conductors." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/ageing-of-overhead-conductors(77eb04ae-7a95-4443-bc62-ba0de2664590).html.

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Overhead conductors used in the transmission of power in grids around the world are generally subjected to ageing, which is the time-based change of their properties. Important properties such as corona discharge, audible noise, hydrophobicity and corrosion are usually considered and investigated. On some conductors such as the aluminium conductor steel reinforced (ACSR), a reduction in audible noise over exposure time to the service environment has been noted to occur. However, the converse has been observed for the gap-type thermal resistant aluminium conductor steel reinforced (GTACSR or “Matthew” conductor), although this conductor is preferred due to its high ampacity. The relationship between conductor hydrophobicity, audible noise, surface contamination and roughness, wettability and corrosion were investigated using All Aluminium Alloy Conductor (AAAC), Aluminium Conductor Composite Core (ACCC) and GTACSR samples. Findings from Fourier Transform Infrared Spectroscopy (FTIR), X-ray Photoelectric Spectroscopy (XPS) and contact angle measurements revealed that carbon, hydrocarbon and silicone contamination was responsible for the hydrophobic nature of the surface. Furthermore, electrochemical investigations and electron microscopy showed that pitting or/and crevice corrosion were the predominant corrosion mechanisms on these conductors. Exposure to simulated industrial and marine environments further confirmed this finding and also showed that general corrosion also occurs on relatively uncontaminated conductors, thereby changing their surface roughness, as seen from the White Light Interferometry results. Corrosion was observed to be accelerated by the presence of surface contaminants such as oils and carbon, as these facilitated water (droplet) retention by reducing the conductor’s surface energy. Reduction/elimination of surface contamination/hydrophobicity were the desired solutions to the problem, and this was achieved by grit blasting. Partial/complete oxidation of the silicones resulted in the reduction/elimination of sample hydrophobicity – this was seen from more contact angles measurements and XPS data. Grit blasting also restored conductor cleanliness and roughened the surface sufficiently to produce surface run-off.
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Rosa, Daniel Monteiro. "Estruturas celulares, transição celular/dendritica e estruturas dendriticas na solidificação unidirecional transitoria." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264735.

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Orientador: Amauri Garcia
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
Made available in DSpace on 2018-08-09T07:59:55Z (GMT). No. of bitstreams: 1 Rosa_DanielMonteiro_D.pdf: 8184541 bytes, checksum: 0b8d932ad9a1091a507ea6b10e4185f8 (MD5) Previous issue date: 2007
Resumo: As morfologias das estruturas de solidificação, caracterizadas principalmente por arranjos celulares e dendríticos, e suas grandezas representadas por espaçamentos celulares e dendríticos primários, secundários e terciários, controlam os perfis de segregação e a formação de segundas fases dentro das regiões intercelulares ou interdendríticas, que determinam as propriedades finais das estruturas fundidas. O presente trabalho pretende contribuir para o entendimento do desenvolvimento microestrutural de ligas binárias através da análise de dois sistemas binários que possuem elevada importância para a indústria na fabricação de peças fundidas automotivas e grades de baterias: Al-Si e Pb-Sb, respectivamente. Os experimentos realizados utilizaram dois diferentes dispositivos em que o calor é extraído somente pelo sistema de resfriamento a água, localizado no fundo (solidificação ascendente) e no topo (solidificação descendente) da lingoteira. As variáveis térmicas de solidificação foram determinadas pela leitura de temperaturas a partir de termopares posicionados dentro da lingoteira em diferentes posições em relação à superfície refrigerada. Estas variáveis térmicas foram confrontadas com as previsões teóricas de um modelo numérico de solidificação. Os aspectos macroestruturais e microestruturais foram caracterizados ao longo dos lingotes através de microscopia óptica. Para as ligas Al-Si foi realizada uma análise complementar do efeito da convecção térmica e constitucional nos espaçamentos dendríticos terciários na solidificação unidirecional transitória descendente. Ligas hipoeutéticas Pb-Sb foram utilizadas para analisar as influências das variáveis térmicas de solidificação e da concentração de soluto nas estruturas celulares, na transição celular/dendrítica e nas estruturas dendríticas. Os espaçamentos celulares e dendríticos foram comparados com as previsões teóricas fornecidas pelos principais modelos de crescimento estacionário e transitório da literatura. Foram também examinados os efeitos da taxa de resfriamento no crescimento celular da liga Pb 0,85%Sb e a influência do tamanho celular e do perfil de macrossegregação correspondente na resistência à corrosão
Abstract: The morphologies of as-cast microstructures, characterized mainly by cellular and dendritic patterns, and their scales represented by primary, secondary and tertiary arm spacings, control the segregation profiles and the formation of secondary phases within intercellular and interdendritic regions, which determine the final properties of castings. The present work aims to contribute to the understanding of microstructural development of binary alloys by analyzing two binary systems, which possess high industrial importance in the manufacture of as-cast automotive components and battery grids: Al-Si and Pb-Sb, respectively. Experiments have been carried out by using two castings assemblies, which were designed in such way that heat was extracted only through the water-cooled system, located at the bottom (upward solidification) and at the top (downward solidification) of the casting. The solidification thermal variables have been determined from thermal readings acquired by thermocouples located inside of the casting in different positions from the cooled surface. Such experimental thermal variables have been compared with theoretical predictions of a numerical model of solidification. Macrostructural and microstructural aspects along the casting were characterized by optical microscopy. For Al-Si alloys a complementary analysis of the influence of thermosolutal convection on the tertiary dendrite arm spacing during the downward unsteady-state directional solidification has been carried out. Hypoeutectic Pb-Sb alloys have been used to analyze the influences of solute concentrations and solidification thermal variables in the development of cellular structures, the cellular/dendritic transition and dendritic structures. Experimental cellular and dendritic spacings have been compared with the theoretical predictions furnished by the main steady-state and unsteady-state growth models from the literature. The effect of cooling rate on the cellular growth of a Pb 0.85wt%Sb alloy and the influences of cell size and of the corresponding macrosegregation profile on the resultant corrosion behavior have also been examined.
Doutorado
Materiais e Processos de Fabricação
Doutor em Engenharia Mecânica
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Swansson, Brenton Travis. "New generation submarine battery electrodes using a tin-lead grid alloy." Thesis, 2015. http://hdl.handle.net/2440/95238.

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The life of lead-acid batteries is typically governed by corrosion of the positive grid. The grid experiences highly oxidising environments which, in turn, corrodes the grid material. However, the resulting corrosion layer is essential to create an electrically conductive bond between the grid and active material. Additionally, alloying elements are necessary to allow low-cost production techniques to be used. The selection of grid material is therefore a compromise between function, life and ease-of-manufacture. Tubular plate lead-acid batteries have historically used antimonial-lead alloys as the grid alloy. These alloys impart mechanical strength within a die-cast grid and provide a suitably conductive oxide within the corrosion layer. The use of tin in many lead alloy blends has resulted in a beneficial effect on the corrosion rate of these alloys. Tin-lead alloys are used in thin plate lead-acid batteries. However there is no published data on their use for grids of tubular plates in deep-cycling applications. A simple binary, low-tin lead alloy has been tested and found to exhibit a significantly lower corrosion rate during periods of heavy cycling when compared to a traditional low-antimony based alloy. However, it was shown that under severe over-charge conditions, the tin-lead alloy corroded at a significantly faster rate than that of an antimonial alloy. The lead-tin alloy performed well as a positive grid material throughout 500 cycles. No indications of premature capacity loss were observed and the ability of the alloy to be recharged was excellent. Electron microprobe analysis of sections of cycled positive plates showed the doping effect of tin within the corrosion layer of the grid material. This effect led to an increase in the conductivity of the layer, resulting in an increased ion-conductivity of the corrosion layer. The corrosion layer of each alloy type was found to be fine, densely packed and uniformly structured under cycling conditions, but it became more porous during periods of severe over-charge. The tin-based alloy was shown to produce a thinner corrosion layer at completion of 500 cycles when compared to that of the antimonial alloy. Further, the corrosion layer of the tin based alloy was found to be less cracked than that of the antimonial based alloy. Finally, this investigation could not identify any reasons why a tin-based grid alloy has not been identified for use in tubular plate deep-cycle batteries previously. The alloy was shown to perform well under both charge and discharge conditions and was not found to suffer premature capacity loss.
Thesis (M.Eng.Sc.) -- University of Adelaide, School of Chemical Engineering, 2015
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Castro, José David Castro. "Efectos corrosivos del Biodiesel en Fundición de hierro gris." Master's thesis, 2015. http://hdl.handle.net/10316/88754.

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Documentos apresentados no âmbito do reconhecimento de graus e diplomas estrangeiros
Con la aplicación de nuevas fuentes de energía en el mundo, ha surgido la utilización del Biodiesel como alternativa importante en la sustitución de combustible fósil en los motores Diésel. Uno de los materiales utilizados por la industria que tiene contacto directo con el Biodiesel es la fundición de hierro gris. Este material es utilizado a nivel industrial por su economía a la hora de la fabricación de componentes y alta resistencia mecánica. Sin embargo, tiene deficiencias a nivel químico por su alta reactividad que conlleva a fenómenos de corrosión importantes afectando el desempeño de las partes fabricadas con este. La tesis “Efectos corrosivos del Biodiesel en Fundición de hierro gris”, es un trabajo experimental acerca del fenómeno de corrosión en el material mencionado. Para eso se diseñaron tres distintas pruebas para demostrar la afectación del material con el ambiente elegido. Se evaluó el comportamiento de la Fundición de hierro gris con cinco Biodiesel de origen diferente para establecer la característica del biocombustible que más afecta en el fenómeno de corrosión. Los Biodiesel del estudio fueron realizados a partir de sebo vacuno, manteca de cerdo, aceite de girasol, aceite de palma, aceite de soya y aceite de coco. Se realizaron ensayos de inmersión a temperatura ambiente, inmersión con ciclos a alta temperatura y espectroscopia de impedancia electroquímica. En los ensayos de inmersión, el material estuvo expuesto por 450 horas, registrando periódicamente su peso con una balanza de precisión con resolución de 0.0001 g. El ensayo de corrosión de Espectroscopia por Impedancia Electroquímica (EIS) se realizó por un periodo de tiempo de 840 horas de exposición.
With the application of new energy sources in the world, there has been the use of Biodiesel as important in replacing fossil fuel in diesel engines alternative. One of the materials used by the industry that has direct contact with the Biodiesel is gray cast iron. This material is used industrially for its economy when manufacturing components and high mechanical strength. However, it has shortcomings for its high chemical reactivity and leads to significant corrosion phenomena affecting the performance of the parts manufactured with this. The thesis "Corrosive Effects of Biodiesel in gray iron casting" is an experimental work on the phenomenon of corrosion in said material. Three different tests were made to demonstrate the involvement of the material on the chosen environment. The performance of the gray iron foundry was evaluated with five Biodiesel from different sources to establish the property that most affects the corrosion phenomenon. The Biodiesel of the study were made from beef tallow, lard, sunflower oil, Palm oil, soybean oil and coconut oil. Static immersion tests were performed at room temperature static and cycles at high temperature additional was realized an electrochemical corrosion test. In static immersion tests, the material was exposed for 450 hours, regularly recording his weight on a precision balance with a resolution of 0.0001 g. The Electrochemical corrosion test that was performed by the technique of Electrochemical Impedance Spectroscopy (EIS) was made with a maximum time of 840 hours of exposure.
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Book chapters on the topic "Grid corrosion"

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Blau, Peter J., Areg V. Hayrapetian, and Michael J. Demkowicz. "Development of a Predictive Wear Model for Grid-to-Rod Fretting in Light Water Nuclear Reactors." In Tribo-Corrosion: Research, Testing, and Applications, 139–58. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2013. http://dx.doi.org/10.1520/stp156320120035.

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Yu, Xinmin, and Xiaolin Shi. "The analysis report of the design research benefit of the light-duty anti-corrosion partially prestressed RPC transmission tower in the power grid." In Advances in Civil Engineering: Structural Seismic Resistance, Monitoring and Detection, 590–95. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003310884-79.

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"Cathodic Protection of Grounding Grids." In Advances in Computer and Electrical Engineering, 248–86. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3853-0.ch007.

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This chapter contains the corrosion theory of grounding electrodes and basic electrochemistry in corrosion reactions. It contains also the forms of substation grounding grid corrosion (uniform corrosion, pitting corrosion, galvanic corrosion, microbial influenced corrosion), survey on corrosion rate of substation grounding grid, copper and steel corrosion rates, corrosion protection methods (coating, cathodic protection [CP]). The chapter contains also the methods of applying cathodic protection in grounding grids, anode selection, anode spacing, and impressed current in the grounding grid cathodic protection. Finally it contains the required information for design grounding system cathodic protection and sacrificial anode (galvanic) cathodic protection system design steps.
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F. Romero, Alberto, and Pilar Ocón. "Phase Transformation Processes in the Active Material of Lead-acid Batteries." In Phase Change Materials - Technology and Applications [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107934.

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The good performance of a lead-acid battery (LAB) is defined by the good practice in the production. During this entire process, PbO and other additives will be mixed at set conditions in the massing procedure. Consequently, an active material mainly composed of unreacted PbO, lead sulfate crystals, and amorphous species will be obtained. Later, the same mass will be pasted on the grids and the curing step will be performed. In this way, the previous pasted mass will be modified and a new hard porous structure will be formed in the active material. Furthermore, this structure will be bounded to the grid through a corrosion layer. Thus, the formed plate will be conducted to the following soaking and formation procedures. In these manufacturing steps, thanks to the major role of H2SO4, the active non-conductive material will be transformed into an electrically conductive element. Therefore, the prior compounds (PbO and lead sulfate crystals) will be converted to new phases: Pb or oxidized to PbO2 on the negative and positive plate, respectively. Because of the importance of the previous phase transformations, new advanced designs are focused on the internal structure of the active material to improve the LAB performance.
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Yuan, Beisheng, Chaofan Li, Fujue Wang, Xinyu Feng, and Yameng Fu. "Study on corrosion fault diagnosis for grounding grid based on the law of conservation of power." In Emerging Developments in the Power and Energy Industry, 730–37. CRC Press, 2019. http://dx.doi.org/10.1201/9780429295300-93.

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Duong, Cong N., and Chun Hui Wang. "Analytical Approach to Repairs of Corrosion Grind-Outs." In Composite Repair, 216–47. Elsevier, 2007. http://dx.doi.org/10.1016/b978-008045146-6/50008-4.

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"Review of grounding grids corrosion diagnosis methods using electromagnetic and ultrasonic guided wave." In Power and Energy, 381–84. CRC Press, 2015. http://dx.doi.org/10.1201/b18409-69.

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Gaztambide, María C. "Dead Matter for an Enlivened Practice." In El Techo de la Ballena, 126–47. University Press of Florida, 2019. http://dx.doi.org/10.5744/florida/9781683400707.003.0006.

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Chapter 5 considers the exhibition Homenaje a la necrofilia (November 1962) by artist Carlos Contramaestre (1933−96) as an extreme example of how El Techo subverted nationalized aesthetic values associated with petroleum-driven capitalism to create art that reflected the grit of contemporaneity. Through a series of twelve ephemeral assemblages created from disintegrating cattle carcasses, viscera, and blood, Contramaestre confronted death and decomposition with forceful vivid assertions of physical love. The conflation of the Freudian sexual and death drives was a direct affront against the technological utopia projected by hegemonic tendencies such as geometric-abstraction or the restrictive unanimity of (far less popular) strains of folkloric landscapes and genre scenes that circulated in Venezuela at this time.But the strategy also allowed the artist and the collective to challenge an atmosphere of political repression, torture, disappearances, and a corrosive culture of cyclical violence that accompanied a fast-tracked national project of socioeconomic modernization in the country.
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"Fig. 48 Media mill. (From Ref. 54.) designs described earlier is reduced. The cost of building some of the designs on a custom basis out of expensive materials can be prohibitive. The surface finish of a material can have a major bearing on whether the mate-rial is able to withstand the corrosive conditions of a process. The most often seen fin-ish on stainless steel is known as a #4 finish, which corresponds to a 125-180 grit fin-." In Pharmaceutical Dosage Forms, 377–84. CRC Press, 1998. http://dx.doi.org/10.1201/9781420000955-58.

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Conference papers on the topic "Grid corrosion"

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Liu Jian, Ni Yunfeng, Wang Shuqi, Li Zhizhong, Wang Jianxin, and Wang Sen. "A novel approach of grounding grid corrosion diagnosis." In 2008 IEEE International Conference on Industrial Technology - (ICIT). IEEE, 2008. http://dx.doi.org/10.1109/icit.2008.4608398.

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Gang Xu, Zhenhua Zhu, and Yanping Bo. "Optimization algorithm of corrosion diagnosis for grounding grid." In 2010 2nd International Conference on Mechanical and Electronics Engineering (ICMEE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icmee.2010.5558490.

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Yugen Liu, Leishi Xiao, and Jinhu Tian. "Optimized corrosion diagnosis of large-scale grounding grid." In Energy Society General Meeting. IEEE, 2010. http://dx.doi.org/10.1109/pes.2010.5589464.

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4

Zhang, Jianhua, Linjing Zhang, and Zhen Wang. "Corrosion Diagnosis and Simulation of Miniature Grounding Grid." In 2nd International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/iccia-17.2017.157.

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Liu, Liqiang, Xianjue Luo, Tao Niu, and Kai Wang. "Grounding Grid Corrosion Diagnosis Based on Large Change Sensitivity." In 2009 Fifth International Conference on Information Assurance and Security. IEEE, 2009. http://dx.doi.org/10.1109/ias.2009.241.

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Liu Jian, Cao Didi, Cheng Hongli, Yang Yanna, Ni Yunfeng, Li Teng, and Wang Sen. "Automatic acquisition & test for grounding grid corrosion diagnosis." In 2009 International Conference on Information and Automation (ICIA). IEEE, 2009. http://dx.doi.org/10.1109/icinfa.2009.5204955.

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Mi, Zhou, Wang Jianguo, Liu Yang, Xiang Nianwen, Sun Zhen, Chen Junjie, and Fang Chunhua. "Causes, Forms and Remedies of Substation Grounding Grid Corrosion." In 2008 International Conference on High Voltage Engineering and Application (ICHVE). IEEE, 2008. http://dx.doi.org/10.1109/ichve.2008.4773904.

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Chen, Hao, Xin Qiao, Feng Tian, and Yunfei Sun. "Corrosion and Protection of Metallic Components in Power Grid Equipment." In 2020 3rd International Conference on Electron Device and Mechanical Engineering (ICEDME). IEEE, 2020. http://dx.doi.org/10.1109/icedme50972.2020.00026.

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Hou, Zai-En, Fu-Jian Duan, Ke-Cun Zhang, Theodore E. Simos, and George Psihoyios. "The Neural Network Method of Corrosion Diagnosis for Grounding Grid." In INTERNATIONAL ELECTRONIC CONFERENCE ON COMPUTER SCIENCE. AIP, 2008. http://dx.doi.org/10.1063/1.3037092.

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Samarasinghe, Sameera, Daniel Martin, and Hui Ma. "Transformer Over Passivation to Prevent On-Load Tap Changer Silver Sulphide Corrosion." In 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia). IEEE, 2019. http://dx.doi.org/10.1109/isgt-asia.2019.8881450.

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Reports on the topic "Grid corrosion"

1

Verhoeven, Stephan. Bonded Repair of Corrosion Grind-Outs. Fort Belvoir, VA: Defense Technical Information Center, April 2005. http://dx.doi.org/10.21236/ada437177.

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2

Villamil, Julie, Caique Lara, Anthony Abrahao, Aparna Arvelli, Guilherme Daldegan, Sharif Sarker, and Dwayne McDaniel. Development of a Pipe Crawler Inspection Tool for Fossil Energy Power Plants. Florida International University, October 2021. http://dx.doi.org/10.25148/mmeurs.009772.

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Abstract:
Fossil fuel power plants are complex systems containing multiple components that create extreme environments for the purpose of extracting usable energy. Failures in the system can lead to increased down time for the plant, reduction of power and significant cost for repairs. In the past, inspections and maintenance of the plant's superheater tubes has been predominantly manual, laborious, and extremely time consuming. This is due to the pipe's small diameter size (between 1.3 and 7.6 cm) and the coiled structure of the tubing. In addition, the tubes are often stacked close to each other, limiting access for external inspection. Detection of pipe degradation, such as increased levels of corrosion, creep, and the formation of micro-cracks is possible using standard non-destructive evaluation (NDE) methods, including ultrasonic, radiography and electromagnetic methods. However, when the access to the sub-systems is limited or the configuration of the structure is prohibitive, alternative methods are needed for deploying the NDE tools. This research effort considers a novel robotic inspection system for the evaluation of small pipes found in typical boiler superheaters that have limited access. The pipe crawler system is an internal inspection device that can potentially navigate through the entire pipe length using linear actuators to grip the walls and inch along the pipe. The modular nature of the system allows it to traverse through straight sections and multiple 90-degree and 180-degree bends. The crawler is also capable of providing visual inspections, ultrasonic thickness measurements, and generating inner diameter surface maps using LiDAR (light detection and ranging). Ultimately, the development of this robotic inspection tool can provide information regarding the structural integrity of key pipeline components in fossil fuel power plants that are not easily accessible
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