1100kV气体绝缘开关设备瓷套管抗震性能振动台试验研究  

Shaking Table Test Study on Seismic Performance of 1100 kV Gas Insulated Switchgear Porcelain Bushing

作　　者：谢强[1] 马国梁[1] 何畅[1] 廖德芳[1] 朱墨翟 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《高电压技术》2016年第8期2596-2604,共9页High Voltage Engineering

基　　金：国家电网公司科技项目(20141625)~~

摘　　要：为评估某型号1 100 k V特高压(UHV)气体绝缘开关设备(GIS)瓷套管的抗震性能,将其连同支撑筒和支架一起安装在振动台上,开展了特高压气体绝缘开关设备瓷套管模拟地震的振动台试验。试验采用符合特高压标准反应谱的人工波激励该瓷套管,并在试验前后用白噪声对其进行激振,获得了在白噪声和人工波激励下套管关键部位的加速度、应变和位移响应。结果表明:在峰值加速度为0.4g(g表示重力加速度)的人工波作用下,套管没有出现机械性破坏;该型号特高压瓷套管的基本振型为弯曲变形,阻尼比为0.004;支架和支撑筒对套管的加速度放大效应达1.64;从结构抗震的角度,在幅值为0.4g的单向人工波作用下,瓷套管的安全系数为3.0。In order to evaluate the seismic performance of a type of gas insulated switchgear （GIS） bushing, a 1 100 kV ultra high voltage （UHV） bushing together with its supporting stand and canister was installed on a shaking table platform, and a shaking table test on the UHV GIS porcelain bushing was carried out. The bushing was excited by an artificial earthquake wave which was conform with UHV standard response spectrum, and the white noise wave was also used to excite the porcelain bushings. Acceleration, strain, and displacement responses at key positions of the bushing under white noise and the artificial earthquake wave excitation were measured. The test results indicate that： under the artificial earth- quake wave excitation with a peak amplitude of 0.4g （g is the acceleration of gravity）, no visible mechanical damage of the bushing is observed. The first mode shape of vibration is bending deformation shape, and damping ratio of the UHV bushing is 0.004. Acceleration magnification factor of the supporting stand and canister is 1.64. From the earthquake engineering perspective, the safety factor of this type UHV bushing is 3.0 under the uni-axial earthquake wave with peak amplitude of 0.4g excitation,

关 键 词：特高压 气体绝缘开关设备瓷套管 振动台试验 地震响应 放大系数 抗震性能 

分 类 号：TM595[电气工程—电器]