Static Electric Field Distribution of Ultra-High Voltage AC Line Y-Type Composite Insulator String

被引：0

作者：

Wei M. ^{[1
]}

Huang D. ^{[1
]}

Huo F. ^{[2
]}

Ruan J. ^{[1
]}

Huang C. ^{[1
]}

机构：

[1] School of Electrical Engineering, Wuhan University, Wuhan

[2] China Electric Power Research Institute, Wuhan

来源：

Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2017年 / 32卷 / 21期

关键词：

Electric field distribution; Finite element method; Grading ring; Ultra-high voltage; Y-type composite insulator string;

D O I：

10.19595/j.cnki.1000-6753.tces.160481

中图分类号：

学科分类号：

摘要：

This paper presents results of the electric field distribution of UHV AC double-circuit transmission line of Y-type composite insulator string, using 3D simulation models based on the finite element method(FEM)in ideal conditions.The impact of length of each part, angle, single and double units on electric field distribution has been analyzed.It is found that the effect is closely related to the distance from conductor to the upper cross arm.From the perspective of the static electric field, it is suggested that the length of I part and V part choose 4 m/5 m.Compared with the 2 m/7 m, the maximum electric field strength on the racetrack type ring decreased by 1.6%, and 3.5% on composite insulators, the potential distribution on the position of 2 m reduced 13.2%.As the angle change the maximum field strength on both the racetrack type ring and the composite insulator are less than 2%, and it is suggested the angle stay 105°.Compared with double units the maximum electric field strength of single units is much lower, which is 8.7% on the racetrack type ring and 21.9% on the sheath of the composite insulator, single unit is suggested. © 2017, The editorial office of Transaction of China Electrotechnical Society. All right reserved.

引用

页码：203 / 210

页数：7

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