Evaluation of the Supportability and Electrical Performance of RTV Coatings Filled with Carnauba Wax under Pollution Conditions

Nóbrega, Raphael Borges da; Costa, Edson Guedes da; Germano, André Dantas; Medeiros, Ítalo Roberto Torres de

doi:10.1109/tla.2021.9475621

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…The correction coefficient of the unified creepage ratio distance is U SCD under polluted conditions in high‐altitude areas [25–29]. According to the conservative calculation, the correction coefficient of U SCD under polluted conditions at an altitude of 3500 mm is k 3.5 = 1.22 [30–34] . According to the correction coefficient of U SCD , the creepage distance of roof insulator should not be less than

\begin{equation}{L_{3.5}} = {k_{3.5}} \times 1000{\rm{m}}\end{equation}

…”

Section: Flashover Voltage For Non‐uniform Fouling Distribution At Hi...mentioning

confidence: 99%

Flashover voltage and external insulation design for EMUs’ insulators at high altitude with non‐uniform distributed pollution

Sun

Fan

et al. 2023

IET Generation Trans & Dist

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Pollution usually accumulates on the surface of the insulator rapidly on high‐speed electric multiple units (EMUs) under operation condition, and the flashover can occur frequently, especially when the EMUs is running on a high‐altitude line. To solve the problem, this paper proposes the calculation method of insulator withstand voltage under the condition of non‐uniform fouling distribution of high‐speed airflow based on the characteristics of high altitude of Lanzhou‐Xin Line in China, and gives the design and test verification of insulator support insulator for 3500‐km altitude. The design and test verification of the supporting insulator of the rolling stock applicable to 3500 km altitude are presented. The result shows that the insulator should be reliable operation on 4430‐km high altitude area if the insulator structure height is 430 mm, the creep distance is 1250 mm. The anti‐pollution performance is fine in high‐speed wind if the radiuses of the large and small shed of the insulator are 196 and 145 mm, respectively, and the shed spacing is 45 mm. The 50‐Hz withstand voltage of the developed insulator is 131 kV and the light impulse voltage is 228 kV which is suitable for lines running on 3500 m. This research provides a theoretical basis and data to support the safety of high‐speed rolling stock in high‐altitude areas.

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\begin{equation}{L_{3.5}} = {k_{3.5}} \times 1000{\rm{m}}\end{equation}

…”

Section: Flashover Voltage For Non‐uniform Fouling Distribution At Hi...mentioning

confidence: 99%

Flashover voltage and external insulation design for EMUs’ insulators at high altitude with non‐uniform distributed pollution

Sun

Fan

et al. 2023

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

Characterization of the impact of coating defects on ceramic insulator efficiency: Machine learning approaches

Salem,

Alawady,

AL-Gailani

et al. 2025

Electric Power Systems Research

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Evaluation of the Supportability and Electrical Performance of RTV Coatings Filled with Carnauba Wax under Pollution Conditions

Cited by 2 publications

References 21 publications

Flashover voltage and external insulation design for EMUs’ insulators at high altitude with non‐uniform distributed pollution

Flashover voltage and external insulation design for EMUs’ insulators at high altitude with non‐uniform distributed pollution

Characterization of the impact of coating defects on ceramic insulator efficiency: Machine learning approaches

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