城市建设理论研究（电子版）
城市建設理論研究（電子版）
성시건설이론연구（전자판）
ChengShi Jianshe LiLun Yan Jiu
2015年
1期
3046-3047
,共2页
远方跳闸保护%就地判据%保护装置拒动
遠方跳閘保護%就地判據%保護裝置拒動
원방도갑보호%취지판거%보호장치거동
The remote trip protection%Local criteria%the Operation Failure of Protection
本文以一次线路故障为例，分析了远方跳闸装置采取的在就地判据长期满足时，“闭锁T1，开放T2”逻辑存在隐患：线路单相断线故障时，乙侧成功合闸，甲侧试送电，线路保护动作但断路器拒动，断路器失灵保护启动远方跳闸时，乙侧远方跳闸装置将发生拒动。提出了解决远方跳闸装置拒动隐患的三种方案——因上述保护拒动发生条件极端暂不做任何措施，修改T2定值使其小于对侧断路器失灵保护的返回时间，因使用差动保护装置通道时不会受干扰致错误收到瞬时远跳令所以建议取消此逻辑。
本文以一次線路故障為例，分析瞭遠方跳閘裝置採取的在就地判據長期滿足時，“閉鎖T1，開放T2”邏輯存在隱患：線路單相斷線故障時，乙側成功閤閘，甲側試送電，線路保護動作但斷路器拒動，斷路器失靈保護啟動遠方跳閘時，乙側遠方跳閘裝置將髮生拒動。提齣瞭解決遠方跳閘裝置拒動隱患的三種方案——因上述保護拒動髮生條件極耑暫不做任何措施，脩改T2定值使其小于對側斷路器失靈保護的返迴時間，因使用差動保護裝置通道時不會受榦擾緻錯誤收到瞬時遠跳令所以建議取消此邏輯。
본문이일차선로고장위례，분석료원방도갑장치채취적재취지판거장기만족시，“폐쇄T1，개방T2”라집존재은환：선로단상단선고장시，을측성공합갑，갑측시송전，선로보호동작단단로기거동，단로기실령보호계동원방도갑시，을측원방도갑장치장발생거동。제출료해결원방도갑장치거동은환적삼충방안——인상술보호거동발생조건겁단잠불주임하조시，수개T2정치사기소우대측단로기실령보호적반회시간，인사용차동보호장치통도시불회수간우치착오수도순시원도령소이건의취소차라집。
Based on a line fault as an example, this paper analysis the remote tripping device taken in situ criterion met for a long time,"Locked T1, open T2" logic exist hazard: when lines have gone wrong of the single-phase break fault ,B side successful y closing , the line protection had actted but the circuit breaker refuse to switch and the circuit breaker failure protection sended the remote trip signal, the remote tripping device of B side wil not act. It is proposed to solve the remote tripping device refusing action of three solution-don't any measures because of refusing action occurs due to the above extreme temporarily, conditions change T2 fixed value so that it is less than the return time of the circuit breaker failure protection, cancel this logic because of the device can’t receive error instantaneous remote trip signal with interference when the differential protection channel is working.
