220kV隔离开关地震模拟振动台试验  

Shake Table Test on 220kV Disconnecting Switch

作　　者：谢强[1] 朱瑞元[1] 周勇[1] 杨雯[2] 王亚非[3] 

机构地区：[1]同济大学建筑工程系,上海市杨浦区200092 [2]西安西电高压开关有限责任公司,陕西省西安市710018 [3]华东电力设计院数字化工程设计部,上海市杨浦区200063

出　　处：《电网技术》2012年第9期262-267,共6页Power System Technology

基　　金：国家电网公司科技项目(SGKJJSKF 2008-508);教育部霍英东教育基金会优选资助课题(114021);科技部国家重点实验室基金资助(SLDRCE 10-B-01)~~

摘　　要：隔离开关是输变电系统中的重要设备,在历次地震中的损坏极其严重,其中瓷瓶根部断裂是其典型破坏特征。为此,文章采用220 kV隔离开关真型试件进行振动台试验研究,通过白噪声扫描和抗震试验,测定设备关键部位的位移、应变和加速度,从而分析支架结构型式和刀闸对瓷瓶响应的影响。结果表明,隔离开关动侧与静侧瓷瓶响应的相关程度显著,且支架的放大系数远超规范中指定参数。As a key component of power transmission and distribution systems,disconnecting switches have suffered serious damage in previous earthquakes.Generally,typical destruction feature of disconnecting switches during earthquakes appears as the breaking at bottom of insulator porcelain posts.In this paper,shake table test on a full-scale disconnecting switch was carried out to study the seismic behavior of the equipment.Displacements,strains and accelerations of the critical parts of the equipment were measured under broadband white-noise tests and input ground motions.The influence of the supporting frame and blades on seismic responses of insulators was estimated.The test results indicate that the responses of the two insulators in the disconnecting switch are correlated,and the amplification factors of the supporting frame are larger than that specified in the specifications.

关 键 词：隔离开关 振动台试验 地震响应 相关性 放大系数 

分 类 号：TM773[电气工程—电力系统及自动化] P315[天文地球—地震学]