Grading Ring Parameters' Design for Y-Type Insulator String of 1000kV AC Double-Circuit Transmission Line

Feng Huo; Tao Xu; Xin Hong Fan; Meng Ting Wei

doi:10.4028/www.scientific.net/AMM.740.420

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 740Grading Ring Parameters' Design for Y-Type...

Grading Ring Parameters' Design for Y-Type Insulator String of 1000kV AC Double-Circuit Transmission Line

Abstract:

Y-type insulator string has advantages of external insulation and reduction of corridor width. This paper establishes a 3D finite element model of Y-type composite insulator string of 1000 kV AC double-circuit transmission line, including tower, insulator, grading rings, phase conductors and other hardware fittings, the model is used to calculate electric field distribution of composite insulator and grading ring. Then the parameters of grading ring are optimized based on the electric field results. According to the results, the optimum parameters of the racetrack grading ring are R=700 mm, r=120 mm, H=200 mm. The results can give a reference for design of UHV AC Y-type insulator string.

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Periodical:

Applied Mechanics and Materials (Volume 740)

Pages:

420-423

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.740.420

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Online since:

March 2015

Authors:

Feng Huo*, Tao Xu, Xin Hong Fan, Meng Ting Wei

Keywords:

Electric Field Distribution, Finite Element Method (FEM), Ultra-High Voltage, Y-Type Insulator String

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