Study on AC Artificially Pollution Flashover Performance of EHV Class Insulator String of 32 Units

Yan Shi; Yong  Chen; Shang Zun Yuan

doi:10.4028/www.scientific.net/AMM.427-429.1456

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 427-429Study on AC Artificially Pollution Flashover...

Study on AC Artificially Pollution Flashover Performance of EHV Class Insulator String of 32 Units

Abstract:

Study on pollution flashover characteristics of EHV system have great reference on engineering.In this paper,the relationship between 50% ac flashover voltage U₅₀ of class insulator string of 32 units and ρ_ESDD, ρ_NSDD was analyzed based on experimental results. It was shown that the relationship between U₅₀ and ρ_ESDD is the same as the one between U₅₀ and ρ_NSDD, in which the U₅₀ reduces with the increase of ρ_ESDD by a power function, and the influences of ρ_ESDD and ρ_NSDD on U₅₀are mutually independent. By using the least square method, the value of exponent of a and b were determined.

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Periodical:

Applied Mechanics and Materials (Volumes 427-429)

Pages:

1456-1459

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.427-429.1456

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Online since:

September 2013

Authors:

Yan Shi*, Yong Chen, Shang Zun Yuan

Keywords:

Extra High Voltage (EHV), Flashover, Insulator, Least-Square Method (LSM), Pollution

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