Fretting Wear Behaviors of Aluminum Cable Steel Reinforced (ACSR) Conductors in High-Voltage Transmission Line

Ma, Xiang; Gao, Lei; Zhang, Lai-Chang

doi:10.3390/met7090373

Cited by 19 publications

(11 citation statements)

References 36 publications

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“…In ACSR, the aluminum line and the galvanized steel core are in direct contact, and this structure is very prone to galvanic corrosion (Håkansson et al, 2015), which is also the main form of ACSR corrosion. At the same time, mechanical wear also accelerates ASCR corrosion, and the fretting wear caused by the aeolian vibration and galloping of the conductor will lead to plastic deformation, wear, and cracking, and eventually fatigue failure (Ma et al, 2017). For transmission lines operating in coastal areas, the combined effects of salt spray corrosion and fretting wear can increase the severity of ASCR corrosion.…”

Section: Coatings Aim At Conductors Corrosionmentioning

confidence: 99%

A review on mechanism and application of functional coatings for overhead transmission lines

et al. 2022

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Overhead transmission line is the main method of power transmission. Conductors, insulators, and towers are the primary electrical equipment of overhead transmission lines. Due to overhead transmission lines work in the natural environment, problems such as icing, corona discharge, contamination deposition, and corrosion will arise. As a result, some accidents may occur, which cause enormous economic losses. The above problems can be solved by coating functional coatings with superhydrophobic, semiconductive, anti-corrosion, and other characteristics on electrical equipment, which has the advantages of low cost and high efficiency. Therefore, functional coatings have become a research hotspot in the field of external insulation in recent years. In view of the various problems of different electrical equipment in overhead transmission lines, distinctive solutions need to be adopted, so this review classifies the coatings according to the usage scenarios and functions. In each category, first briefly outlines the causes of the electrical equipment problem, then introduces the mechanism of using this type of functional coating to solve the problem, next summarizes the development and application status of this type of coating, after summarizes the limitations of this coating, and finally provides a summary of the key issues in the research of functional coatings and gives an outlook on potential future research directions. This review intends to provide readers with a comprehensive overview of the performance principles and current application status of functional coatings for overhead transmission lines.

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Section: Coatings Aim At Conductors Corrosionmentioning

confidence: 99%

A review on mechanism and application of functional coatings for overhead transmission lines

et al. 2022

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“…With high-voltage (HV) overhead lines (OHLs) facing an increasingly complex and deteriorating service environment, corrosion and wear damages are two of the main areas of OHL failures [3]. Aluminium and its alloys not only have the advantage of light weight, but also have good conductivity and excellent corrosion resistance, making them one of the most commonly used overhead conductor materials [4], [5]. However, due to the poor mechanical properties and wear resistance of aluminium and its lack of stability at high temperatures, surfaces made of the aluminium oxide are more prone to damage, eventually resulting in corrosion protection failures [6]- [8].…”

Section: Introductionmentioning

confidence: 99%

Improved Mechanical Property and Corrosion and Wear Resistance of High-Voltage Aluminium Wires by Micro-Arc Oxidation Coating

Shao

et al. 2023

IEEE Trans. Power Delivery

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New surface treatments are required to improve the resistance of high-voltage aluminium conductors to corrosion and wear. This paper describes the preparation of ceramic coatings on the surface of aluminium wires by the micro-arc oxidation (MAO) technology. The surface morphology, mechanical and tribological properties, electrical resistivity, wear and corrosion resistance of the MAO-treated aluminium samples are examined and compared not only with the untreated samples but also between the use of different current densities in the MAO process. The MAO treatment can increase the tensile strength of the wire and mitigate the wire elongation at excessive high temperature. In addition, the increased surface hardness and the overlapping micro-porous distribution of the MAO coating improve the resistance of the treated sample to wear and corrosion respectively, protecting the aluminium substrate from the joint effects of wear and corrosion. Furthermore, the MAO coating has little impact on the electrical resistivity of aluminium conductors and can mitigate the resistivity change due to corrosive damage. The MAO technology providing a potential idea for the surface treatment of aluminium conductors is expected to extend the service life and alleviate maintenance needs of aluminium conductors operating in harsh environments.

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“…The authors revealed that adhesion/abrasive fretting damage mechanisms were dominant in aluminum wires. Ma et al [45] studied the wear performance of ACSR in different environments, revealing that the primary wear mechanisms change from abrasive/adhesive wear to abrasive wear/fatigue damage in dry friction environments and NaCl solution.…”

Section: Introductionmentioning

confidence: 99%

Influence of Applied Load and Sliding Distance on Wear Performance of AlSi7Mg0.6 Aluminum Alloy

Zhang,

Zhao,

Pan

et al. 2023

Metals

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The wear performance of AlSi7Mg0.6 aluminum alloy, a casting aluminum alloy used in positioning devices for catenary systems of high-speed railways which fail frequently on lines where the speed of trains is higher than 300 m/s, is discussed in this study. It was estimated that sliding contact wear occurred and mainly contributed to the failure. To explore the competing mechanism for frictional wear failure, frictional experiments based on three groups of sliding distance (0.5 mm, 1.5 mm and 3.0 mm) and four groups of applied loads (20 N, 50 N, 100 N and 200 N) were implemented. Three-dimensional morphological observation results revealed that the wear volumes at a sliding distance of 0.5 mm were only about 1/10 of that at a sliding distance of 3.0 mm. It was also revealed that the wear volume based on a sliding distance of 3.0 mm and applied load of 20 N was still much larger than the wear volume under a sliding distance of 0.5 mm and applied load of 200 N. SEM observation of the microstructures revealed that abrasive wear was the dominant wear mechanism in dry sliding friction conditions. A simplified positioning device model was also established to study the influence of tension force on wear performance. The simulation results revealed that smaller tension force between the positioning support and positioning hook would lead to higher relative sliding distance and larger wear depth. Sliding contact friction should be avoided due to relatively large wear efficiency compared with rolling contact friction. Both experimental and simulation results suggested that proper tension force was preferred in assembling components which could ensure rolling contact friction rather than sliding contact friction.

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Fretting Wear Behaviors of Aluminum Cable Steel Reinforced (ACSR) Conductors in High-Voltage Transmission Line

Cited by 19 publications

References 36 publications

A review on mechanism and application of functional coatings for overhead transmission lines

A review on mechanism and application of functional coatings for overhead transmission lines

Improved Mechanical Property and Corrosion and Wear Resistance of High-Voltage Aluminium Wires by Micro-Arc Oxidation Coating

Influence of Applied Load and Sliding Distance on Wear Performance of AlSi7Mg0.6 Aluminum Alloy

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