He Chang, He Ziwei, Xie Qiang
School of Civil Engineering, Central South University, Changsha 410075, China.
Jiangsu Key Laboratory of Engineering Mechanics, Southeast University, Nanjing 211189, China.
Materials (Basel). 2022 Jun 6;15(11):4035. doi: 10.3390/ma15114035.
To evaluate the seismic performances of the ultra-high voltage (UHV) gas-insulated switchgear (GIS) bushings made by porcelain and glass fiber reinforced polymer (GFRP) composite materials, shaking table tests were conducted on the two full-scale GIS bushings. The dynamic characteristics and seismic responses of the two UHV GIS bushings were obtained. The experimental results indicated that the two UHV GIS bushings meet the seismic requirements in the corresponding standards. The supporting frame and bus canister amplify the seismic responses of the UHV GIS bushings. Under earthquakes, the GFRP composite UHV GIS bushing is safer than the porcelain bushing. In the seismic design of the electrical substation, the large seismic displacement of the GFRP composite UHV GIS bushings should be considered.
为评估由瓷和玻璃纤维增强聚合物(GFRP)复合材料制成的特高压(UHV)气体绝缘开关设备(GIS)套管的抗震性能,对两个全尺寸GIS套管进行了振动台试验。获得了两种特高压GIS套管的动态特性和地震响应。试验结果表明,两种特高压GIS套管均满足相应标准中的抗震要求。支撑框架和母线罐体放大了特高压GIS套管的地震响应。在地震作用下,GFRP复合特高压GIS套管比瓷套管更安全。在变电站的抗震设计中,应考虑GFRP复合特高压GIS套管的大地震位移。