摘要
中国高速铁路线路高架桥路段比例大,且相对集中在雷电活动较强烈地区,牵引供电接触网雷击故障多,须采取措施加以解决。在接触网绝缘子旁并联安装带间隙避雷器是一种有效的防雷措施。根据接触网布局结构和运行可靠性要求高的特点,提出了一种与绝缘子一体化安装的避雷器分体结构型式,特别设计抱箍增强安装稳定性,提出了一种避雷器本体压力释了U型放结构可有效释放短路能量,研究选择了本体关键参数和串联间隙距离,确定了短路试验和振动试验方法和条件,对样品进行了雷电冲击放电伏秒特性试验、短路试验和振动试验,从而验证该技术性能的可靠性。最后,研制了适合接触网正馈线、接触线和加强线绝缘子使用的3种形式避雷器,并获国家发明专利授权,已在京沪高速铁路上试运行,状态良好。
In China, viaduct sections are widely adopted in high-speed electrified railway lines and most of the lines go through strong lightning activity areas. This leads to high lightning stroke failure rate of traction power supply catenary. To install metal oxide surge arrester with series gap（GMOA） parallel with insulators is an ideal lightning protection measure to solve the problem. In the paper, a kind of arrester and insulator integral mounting structure type was put forward, U-shaped clamp was specially designed to enhance the stability of the installation, an arrester body pressure release structure was presented to release the short-circuit energy effectively, the primary parameters of MOA body and the distance of series gap were selected, the test methods and conditions of short-circuit test and vibration test were provided, and the samples proved reliable by the results of lightning impulse test ,short-circuit current test and vibration test. Three kinds of GMOA products with positive feeder/contact wire/strengthened contact wire insulators were successfully developed （obtained national patents of invention） and have been used in catenary in the Beijing-Shanghai high-speed railway, and the running of the products have been going well up to now.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2013年第10期200-209,1,共10页
Proceedings of the CSEE
基金
"十一五"国家科技支撑计划项目(2009BAG12A09)~~
关键词
高速铁路
接触网
雷电防护
带外串联间隙金属
氧化物避雷器
分体式结构
雷电冲击放电试验
短路试验
振动试验
high-speed electrified railway
catenary
lightning protection
metal oxide surge arrester with series gap
fission structure
lighming impulse test
short-circuit current test
vibration test
