宜优先选用二次侧电流为1A的电流互感器  

Suggestion for Preferential Adoption of Current Transformers with 1A Secondary Current

作　　者：谢炜 

机构地区：[1]苏州一科科建建筑设计研究院有限公司,江苏省苏州市215006

出　　处：《建筑电气》2015年第12期25-29,共5页Building Electricity

摘　　要：我国供配电系统电流互感器二次侧电流多为5 A,而国外发达国家多为1 A,分析1 A的二次侧电流与5 A相比的诸多优点,建议优先采用二次侧电流为1 A的电流互感器。In China, current transformers with5 A secondary current are commonly adopted in the power supply and distribution system, whereas in the developed countries in the world, those with 1A secondary current are commonly adopted. According to the analysis on the advantages of current transformers with 1A secondary current over those with 5A secondary current, it is suggested that current transformers with 1A secondary current is adopted preferentially.

关 键 词：电流互感器 二次侧电流 1 A 5 A 功耗 额定容量 传输距离 节能 

分 类 号：TM452[电气工程—电器]