Enhancement of Corona Onset Voltage Using PI/MWCNT Nanocomposite on HV Conductor

Megala, V.; Sugumaran, C. Pugazhendhi

doi:10.1109/tps.2020.2979843

Cited by 10 publications

(2 citation statements)

References 22 publications

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“…Nevertheless, the corona discharge of superhydrophobic surface conductors is not completely consistent with the needle-plate experiment on insulators [120]. Megala et al [121] prepared thick coatings of high dielectric constant to reduce corona loss (Figure 7c). Zhang et al [122] have found improved corona performance of superhydrophobic coated conductors (Figure 7d,e) attributed to the repellency of water droplets.…”

Section: Icing Formsmentioning

confidence: 90%

A Review on Superhydrophobic Surface with Anti-Icing Properties in Overhead Transmission Lines

Bai

et al. 2023

Coatings

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The icing on overhead transmission lines is one of the largest threats to the safe operation of electric power systems. Compared with other security accidents in the electric industry, a sudden ice disaster could cause the most serious losses to electric power grids. Among the numerous de-icing and anti-icing techniques for application, direct current ice-melting and mechanical de-icing schemes require power cuts and other restrictive conditions. Superhydrophobic coating technology has been widely focused for good anti-icing properties, low cost and wide application range. However, the special structure of curved transmission lines, complicated service environments, and variated electric performance could significantly limit the application of superhydrophobic anti-icing coatings on overhead transmission lines. In particular, superhydrophobic surfaces can be achieved by combining the rough micro-nano structure and modification agents with low surface energy. Compared with superhydrophobic coatings, superhydrophobic surfaces will not increase the weight of the substrate and have good durability and stability in maintaining the robust structure to repeatedly resist aging, abrasion, corrosion and corona damages, etc. Therefore, this review summarizes the theoretical basis of anti-icing behavior and mechanisms, influencing factors of anti-icing properties, potential techniques of superhydrophobic surfaces on transmission lines, and, finally, presents future development challenges and prospects of superhydrophobic surfaces in the anti-icing protection of overhead transmission lines.

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Section: Icing Formsmentioning

confidence: 90%

A Review on Superhydrophobic Surface with Anti-Icing Properties in Overhead Transmission Lines

Bai

et al. 2023

Coatings

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“…In recent years, researchers have proposed many anti-corona coatings, which are expected to solve the corona problem. There are mainly hydrophobic coatings (Xu and Li, 2013;Yi et al, 2016;Zhang et al, 2019), TiO 2 coatings (Bian et al, 2018;Xu et al, 2022), and high dielectric coatings (Megala and Sugumaran, 2019;Megala and Pugazhendhi Sugumaran, 2020).…”

Section: Coatings Aim At Conductors Coronamentioning

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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Laser nanoengineered coatings for efficient energy transportation through corona discharge suppression

Emelyanenko,

Boinovich

2024

Optics & Laser Technology

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Enhancement of Corona Onset Voltage Using PI/MWCNT Nanocomposite on HV Conductor

Cited by 10 publications

References 22 publications

A Review on Superhydrophobic Surface with Anti-Icing Properties in Overhead Transmission Lines

A Review on Superhydrophobic Surface with Anti-Icing Properties in Overhead Transmission Lines

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

Laser nanoengineered coatings for efficient energy transportation through corona discharge suppression

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