高电压技术2017，Vol.43Issue(12)：4139-4144,6.DOI:10.13336/j.1003-6520.hve.20171127043
1100kV特高压套管地震模拟振动台试验
Earthquake Simulation Shaking Table Test for 1100 kV UHV Bushing
摘要
Abstract
UHV Transformer which has high seismic vulnerability is the key device of UHV project,and it may bring serious economic losses when the device is damaged in an earthquake.As the weak position in the seismic performance of the transformer,the seismic capacity of UHV bushing directly affects the seismic fortification level of UHV substation.In this study,one 1100 kV UHV bushing was tested by shaking table.The dynamic characteristics and seismic response such as strain and acceleration of the key parts of the UHV bushing were obtained by the input of white noise wave and standard time history wave.The test results show that the maximum stress of porcelain pieces of the bushing is lower than the failure strength,but the flange of the bushing is damaged,which means the device does not meet the seismic design requirements of 3 m/s2.The test results indicate that the metal flange part is the weak part of the bushing.While paying attention to the seismic performance of the porcelain part,structural connection measures should be taken to improve the stiffness of casing metal parts,so as to improve the seismic performance of the device.关键词
1100kV套管/地震响应/动力特性/加速度/应变/应力/法兰Key words
1100 kV UHV bushing/seismic response/dynamic characteristics/acceleration/strain/stress/flange引用本文复制引用
孙宇晗,卢智成,刘振林,林森,王晓宁,钟珉..1100kV特高压套管地震模拟振动台试验[J].高电压技术,2017,43(12):4139-4144,6.基金项目
国家电网公司科技项目(GCB17201500063).Project supported by Science and Technology Project of SGCC(GCB17201500063). （GCB17201500063）
