特高压TYD1000型电容式电压互感器抗震试验研究  

Study on Seismic Experiment of Ultra High Voltage TDY1000 Capacitive Voltage Transformer

作　　者：卢智成[1] 邱宁[2] 程永锋[1] 钟珉[1] 孙宇晗 鲁先龙[1] 

机构地区：[1]中国电力科学研究院,北京100192 [2]国家电网公司交流建设部,北京100031

出　　处：《高电压技术》2015年第11期3694-3701,共8页High Voltage Engineering

基　　金：国家电网公司科技项目(5299001352U7)~~

摘　　要：为了准确评估特高压电气设备的抗震能力,依据特高压电气设备的试验方法,利用地震模拟振动台对特高压TYD1000型电容式电压互感器进行了试验研究。试验过程中测量了设备多个关键部位的地震响应,包括加速度、应力(或应变),并比较分析了试验前后设备结构动力特性的变化,包括基频和阻尼的变化。结果表明:在地震波激励作用下,特高压互感器中瓷套与金属法兰之间连接的水泥胶装部位出现塑性变形或损伤,导致该设备动力特性在试验前后有较为明显的变化,设备地震响应呈现非线性变化关系。因此,对该类型设备进行抗震能力评估时,非线性特征作为1项重要因素需要考虑。In order to assess the seismic capacity of Ultra high voltage （UHV） electrical equipment accurately, a UHV TYD1000 capacitive voltage transformer was studied by shaking table test based on proposed experimental methods for UHV electrical equipment. The seismic responses of equipment at several locations were measured, including accelera- tion and stress （or strain）. Structural dynamic properties of equipment before and after test were analyzed though comparison, including the change of fundamental frequency and damping ratio. The results show that, under the earth- quake wave actions, plastic deformation or damage of the cement layer between porcelain busing and metal flange of equipment will change the fundamental frequency and damping ratio. The seismic responses of equipment show non-linear properties obviously. So the non-linear properties of this type of equipment are an important consideration during the seismic capacity assessment.

关 键 词：特高压 电容式电压互感器 瓷套 抗震能力 地震模拟振动台试验 非线性特点 

分 类 号：TM451.2[电气工程—电器]