A new design of substation grounding based on electrolytic cathodic protection and on transfer corrosion current

Hu, Haize; Fang, Mengge; Hu, Feiyu; Zeng, Shuiling; Deng, Xiaofei

doi:10.1016/j.epsr.2021.107174

Cited by 13 publications

(4 citation statements)

References 30 publications

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“…Some studies have shown that a constant current density is more suitable for the anode boundary condition of an ICCP system than an anodic polarization curve. [ 35,36 ] Therefore, a constant current density was chosen as the anode boundary condition. The corresponding equation can be written as:

\frac{\partial u(x,y,z)}{\partial n(x,y,z)}={i}_{0}=\,\text{const,}

where u (x, y, z) is the potential at point (x, y, z), n (x, y, z) is the outward direction normal to the surface at this point, and i 0 is the current density.…”

Section: Interference Characteristics Of Stray Currentmentioning

confidence: 99%

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Effect of electrified surface casing on the interference characteristics of stray current generated by deep‐well anode beds

Cen

Dai

Huang

et al. 2022

Materials & Corrosion

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Currently, the impressed current cathodic protection with deep-well anode beds has been found that the surface casing was charged. In this study, 13 deep-well anode beds were selected randomly to investigate whether their surface casings were electrified. Possible causes of the electrification of surface casings are also discussed. A numerical model for simulating the geoelectric field of a representative deep-well anode bed with an electrified surface casing was established and validated by data from on-site testing. The difference | © 2022 Wiley-VCH GmbH.

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\frac{\partial u(x,y,z)}{\partial n(x,y,z)}={i}_{0}=\,\text{const,}

where u (x, y, z) is the potential at point (x, y, z), n (x, y, z) is the outward direction normal to the surface at this point, and i 0 is the current density.…”

Section: Interference Characteristics Of Stray Currentmentioning

confidence: 99%

“…Some studies have shown that a constant current density is more suitable for the anode boundary condition of an ICCP system than an anodic polarization curve. [35,36] Therefore, a constant current density was chosen as the anode boundary condition. The corresponding equation can be written as:…”

Section: Boundary Conditionsmentioning

confidence: 99%

Effect of electrified surface casing on the interference characteristics of stray current generated by deep‐well anode beds

Cen

Dai

Huang

et al. 2022

Materials & Corrosion

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“…Zhanglong Zhang et al investigated a fracture diagnosis method of grounding wire of tower grounding device [3]. Haize Hu et al designed a new substation grounding based on electrolytic cathodic protection and on transfer corrosion current [4]. Junhui Zhao et al studied acoustic-guided wave techniques for the detecting corrosion damage of electrical grounding rods [5].…”

Section: Introductionmentioning

confidence: 99%

Study on the Corrosion Characteristics of Grounding Materials in Acid Red Soil

Shen¹,

Xu³

et al. 2022

Coatings

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The corrosion of grounding materials seriously threatens the safe operation of the power system. The corrosion resistance of four typical grounding materials as carbon steel, galvanized steel, Zn–Al-coated steel, copper was studied in acid red soil. The results show that carbon steel, galvanized steel, Zn–Al-coated steel, copper exhibit different corrosion resistance behaviors, respectively. The corrosion rate of these grounding materials usually increases first and then slowly decreases. Pitting corrosion is the main corrosion feature of carbon steel. The corrosion rate of carbon steel is the largest compared to the other three grounding materials. The corrosion rate of galvanized steel is higher than that of copper. Copper has a low corrosion rate and exhibits good corrosion resistance, but the cost of copper is high and it causes heavy metal pollution. The corrosion rate of Zn–Al-coated steel is the lowest compared to the other three grounding materials, and it has the best corrosion resistance.

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“…The possibility of fire and explosion due to a short circuit resulting from high current that cannot be directed to the grounding system is among the most serious risks [8]. Therefore, revisions and modifications to the design must come after review, analysis, and re-measurement simulations [9]. This is done to ensure that the grounding system's resistance value is always low in accordance with the guidelines established by a PUIL 2000 and PUIL 2011 company [10], IEEE spec.…”

Section: Introductionmentioning

confidence: 99%

Earthing Resistance and Poldzolic Soil Resistivity at PT. Perta Samtan Gas Field Extraction Plant Prabumulih

et al. 2022

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It is important to undertake research at the location of PT. Perta Samtan Gas Field Extraction Plant Prabumulih with Podzolik soil type (yellow gravel clay) and analysis in order to prevent work accidents and the risk of fire caused by leakage current at the gas processing extraction installation. Direct measurement of soil resistance value is used as the basis for the methodology, which is followed by literature study as background information and technical comprehension of experimental research. The outcomes of the research study are then compared using Comsol simulation with the computational method of computational finite element analysis of the resulting resistance. According to the data, the resistivity of the podzolic soil was 214.4 Ωm, while the Comsol simulation yielded a resistance value per meter of 209.1 Ω and 196.7Ω, respectively. The Comsol simulation demonstrates that, in order to obtain a ground resistance value of 1 ohm on a Single rod system with Fe material, it is necessary to optimize the depth of the grounding electrode, which can range from 3 meters to 1053 meters d. In the simulation, the results of soil resistance measurements and the Comsol Multiphysics application are obtained, and the difference is calculated with a percentage error of 1.62%.

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A new design of substation grounding based on electrolytic cathodic protection and on transfer corrosion current

Cited by 13 publications

References 30 publications

Effect of electrified surface casing on the interference characteristics of stray current generated by deep‐well anode beds

Effect of electrified surface casing on the interference characteristics of stray current generated by deep‐well anode beds

Study on the Corrosion Characteristics of Grounding Materials in Acid Red Soil

Earthing Resistance and Poldzolic Soil Resistivity at PT. Perta Samtan Gas Field Extraction Plant Prabumulih

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