继电保护整定计算中对电流互感器断线的处理方法  

The setting method of current transformer on line calculation of relay protection

作　　者：缪春琼 姚旭明[1] 

机构地区：[1]广西电力职业技术学院电力系,530000

出　　处：《电子测试》2014年第4期104-105,共2页Electronic Test

摘　　要：目前运行中的继电保护定值,对于TA断线的处理方法有两种:一种是TA断线后闭锁保护。另一种是TA断线后开放保护出口回路,跳开相应开关。这两种方案如何取舍,目前还没有明确的说法和规定。本文通过分析TA开路的危害,指出继电保护定值中TA断线后这两种方法的优缺点。There are two kinds of treatments for TA disconnection：one is protection locking. Another is to open the protection outlet circuit, rebound the corresponding switch. How to choice these two kinds of methods, there is no clear and provisions to be provided. This article attempts to analysis the harm when the TA circuit brake, points out the advantages and disadvantages of these two methods TA disconnection of relay protection setting value.

关 键 词：保护 TA断线 闭锁 

分 类 号：TM77[电气工程—电力系统及自动化]