Shaking Table Tests on ±800 kV UHV DC Wall Bushing

被引：0

作者：

Xie Q. ^{[1
]}

He C. ^{[1
]}

Yang Z. ^{[1
]}

Zhuo R. ^{[2
]}

机构：

[1] College of Civil Engineering, Tongji University, Yangpu District, Shanghai

[2] Electric Power Research Institute, China Southern Power Grid Co., Ltd., Guangzhou, 510063, Guangdong Province

来源：

Dianwang Jishu/Power System Technology | 2018年 / 42卷 / 01期

关键词：

Dynamic properties; Rocking vibration; Seismic responses; Shaking table test; UHV wall bushing;

D O I：

10.13335/j.1000-3673.pst.2017.1149

中图分类号：

学科分类号：

摘要：

UHV DC wall bushings are important components in converter substations. In order to evaluate their seismic performance and dynamic responses under seismic action, shaking table tests on a full-scale mock ±800 kV wall bushing were carried out. Dynamic characteristics were obtained with white noise excitation. Displacements, strains and accelerations of critical parts of the bushing under different input ground motions with different peak ground accelerations were measured. Results indicated that there were large displacements on top of the bushing and large stresses at bottom cross section. Relative displacements between composite bushing and central conductor were large. Redundant of buswork at the end of the bushing should be large enough to eliminate negative impacts between bus connection and wall bushing. Countermeasures should be taken to increase stress safety factor, and structure inside the bushing should be optimized to reduce relative displacements between conductor and composite bushing. © 2018, Power System Technology Press. All right reserved.

引用

页码：140 / 146

页数：6

共 18 条

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