高电压技术2012，Vol.38Issue(10)：2714-2720,7.
±500kV直流输电线路用复合外套带串联间隙金属氧化物避雷器的研制
Development of Polymeric MOA with No-supporting Series Gap for ±500 kV DC Transmission Lines
万帅 1陈家宏 1谭进 1谷山强 1陈坤1
作者信息
摘要
Abstract
In order to improve the lightning withstand level of ±500 kV DC transmission lines and to reduce the lightning flashover rate,polymeric MOA with no-supporting series gap for ±500 kV DC transmission lines was developed and manufactured.By analyzing the operation duty and protection principle of the target line surge arrester,its structure requirements were presented and its main technical parameters were calculated and designed.The polymeric MOA with no-supporting series gap for ±500 kV DC transmission lines has been developed successfully by the State Grid Electric Power Research Institute,of which the nominal voltage,the residual voltage and the positive 50% lightning impulse discharge voltage are 571 kV,1 064 kV and 1 830 kV,respectively.By means of the pattern tests,it is proved that the mechanical and electrical properties of the line surge arrester are reasonable and the parameters design could be achieved successfully,which assures the line surge arrester could provide satisfactory protection for the insulator strings.The successful development of the product field in the domestic blank among line arresters for DC transmission lines,and lays a foundation for the usage spreading of the device on ±500 kV DC transmission lines.关键词
±500kV/直流输电线路/线路避雷器/动作负载/直流老化/绝缘配合Key words
±500 kV/DC transmission line/line arrester/operating duty/aging under DC voltage/insulation coordination分类
信息技术与安全科学引用本文复制引用
万帅,陈家宏,谭进,谷山强,陈坤..±500kV直流输电线路用复合外套带串联间隙金属氧化物避雷器的研制[J].高电压技术,2012,38(10):2714-2720,7.
