Study on AC Artificially Pollution Flashover Performance of Long Porcelain Insulator String

Yan Shi; Gang Hu; Yong Chen

doi:10.4028/www.scientific.net/AMM.713-715.975

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 713-715Study on AC Artificially Pollution Flashover...

Study on AC Artificially Pollution Flashover Performance of Long Porcelain Insulator String

Abstract:

In this paper,the relationship between 50% ac flashover voltage (U₅₀) of long porcelain insulator string and ρ_ESDD and 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_E_SDD by a power function, and the influences of ρ_ESDD and ρ_NSDD on U₅₀ are 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 713-715)

Pages:

975-978

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.713-715.975

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Online since:

January 2015

Authors:

Yan Shi*, Gang Hu, Yong Chen

Keywords:

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

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References

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