Inner insulation structure optimization for ultra high voltage resin impregnated paper oil-SF6 bushing

被引：0

作者：

Zhang, Shiling ^{[1
]}

Peng, Zongren ^{[1
]}

Liu, Peng ^{[1
]}

机构：

[1] State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an

来源：

Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2014年 / 48卷 / 08期

关键词：

Equal margin design; Finite element method; Optimization; Resin impregnated paper oil-SF[!sub]6[!/sub] bushing; Ultra high voltage;

D O I：

10.7652/xjtuxb201408020

中图分类号：

学科分类号：

摘要：

Focusing on the limitations in bushing condenser design with the traditional analytic formulas, an equal margin design method is developed. Taking the ultra high voltage resin impregnated paper oil-SF6 bushing as an object and considering the influences from stray capacitance and temperature, the mathematical model for the improved equal margin design is established. Then the inner insulation structure is optimally designed by combining finite element method electro-thermal coupling calculation and particle swarm optimization algorithm. The bushing prototype is fabricated according to the optimized design and the availability of this equal margin design scheme is confirmed by all types of tests. It can be realized to uniformly distribute field intensity along the bushing condenser and the partial discharge margin between the adjacent foils, and the partial discharge margin can be heightened from 0.925 to 1.155.

引用

页码：116 / 121

页数：5

共 7 条

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