电流互感器配置与选择的几个问题  

Discussion on water conservancy project supervision for ecological protection at construction stage

作　　者：田方[1] 王小娟[2] 

机构地区：[1]中国水电顾问集团西北勘测设计研究院,西安710065 [2]黄河上游水电开发有限公司,西宁810008

出　　处：《西北水电》2008年第6期40-44,共5页Northwest Hydropower

摘　　要：从对电流互感器的技术要求出发,对各种保护用电流互感器的特点进行分析,提出保护用电流互感器的选择原则,额定一次电流、额定二次电流选择存在的问题和解决的方法,以及如何合理配置电流互感器,以避免出现保护的死区。Based on the technical requirements of current transformer, the paper analyzes the characteristics of current transformers for various protection purposes and proposes the principle for selection of current transformers, and the problems and solutions in selection of rated first current and rated second current are put forward as well. It also describes how to rationally configure current transformers to avoid protection dead zone.

关 键 词：非周期分量 工频电流 谐波制动 暂态饱和 互感器剩磁 微机型保护 

分 类 号：TM621.6[电气工程—电力系统及自动化]