高电压技术2017，Vol.43Issue(12)：3884-3891,8.DOI:10.13336/j.1003-6520.hve.20171127009
保护用电子式电流互感器暂态特性试验关键技术及装置研制
Critical Technology and Equipment Development of Transient Characteristics Test on Electronic Current Transformer for Protection
摘要
Abstract
The transient performance of current transformer is one of key factors that are related to the security and stability of power grid,so it is of great significance for transient characteristics research and test method of protective current transformer.Consequently,we theoretically analyzed the short-circuit primary current of power system by decomposing the periodic component and the aperiodic component.Moreover,we analyzed the problems and deficiencies of the existing test technology,put forward the different time scales of the modular combination test technique based on the development of current transformer transient power protection test,greatly reduced the test power supply capacity,fault current to achieve full working condition and wide range of a time constant of the analog output,and provide solutions with the overall transient characteristic of current transformer test protection scheme.Meanwhile,we put forward a test method of transient characteristic of current transformer and detection system for protection.The test results show that,the technical performance indicators fully meet the testing requirements of electronic current transformer for protection.关键词
保护用电流互感器/暂态特性/一次时间常数/模块化组合/暂态大电流试验电源/电子式互感器Key words
current transformer for protection/transient characteristics/primary time constant/modular combination/transient current power supply/electronic transformer引用本文复制引用
张杰,叶国雄,刘翔,胡媛媛..保护用电子式电流互感器暂态特性试验关键技术及装置研制[J].高电压技术,2017,43(12):3884-3891,8.基金项目
国家电网公司科技项目:电子式互感器检测、调试与运维技术深化研究.Project supported by Science and Technology Project of SGCC:Advanced Research on Testing,Debugging,Operation and Maintenance Method of Electronic Transformer. （）
