3/2接线运行分析及保护用电流互感器典型配置  

Typical Configuration of Current Transformer for 3/2 Wiring Operation Analysis and Protection

作　　者：刘振 Liu Zhen

机构地区：[1]山东泰开高压开关有限公司,山东泰安271000

出　　处：《电力系统装备》2022年第6期52-54,共3页Electric Power System Equipment

摘　　要：3/2接线以其供电可靠性高等诸多优点被广泛应用于500 kV及特高压系统中。文章分析了3/2接线的运行特点,介绍了保护用电流互感器的选择方法,并结合标准及国网规范分析了N站整改的原因,提出了保护用电流互感器的典型配置,供工程设计参考。3/2 wiring is widely used in 500 kV and UHV system with its advantages of high power supply reliability.This paper analyzes the operation characteristics of 3/2 wiring,introduces the selection method of current transformer for protection,and analyzes the rectification of N station combined with the standard and state grid specifications,and proposes the typical configuration of current transformer for protection for reference in engineering design.

关 键 词：3/2接线 运行分析 TPY 双重化原则 交叉范围 

分 类 号：TM75[电气工程—电力系统及自动化]