CAJ | 학술논문

在电网二次系统中,不经过保护动作跳开断路器时监控系统不能启动事故音响,避免与故障跳闸情况相混淆。但是在某变电站,手动跳开某线路间隔断路器时监控系统启动了事故音响。本文针对此种缺陷从二次回路上进行了技术分析,并提出了解决办法。
재전망이차계통중,불경과보호동작도개단로기시감공계통불능계동사고음향,피면여고장도갑정황상혼효。단시재모변전참,수동도개모선로간격단로기시감공계통계동료사고음향。본문침대차충결함종이차회로상진행료기술분석,병제출료해결판법。
In the secondary system,the monitoring system is not able to start tripping alarms in order to avoid the differention with fault trip,when the breaker is not tripped by protection action.But in some substations,a line breaker is tripped by hands,which causes startup of tripping alarms.From the standpoint of the secondary looper,this paper gives a technical analysis for it and proposes some solutions.