1) same directional negative sequence relay
同序负序方向纵联保护
2) pilot negative sequence directional protection
纵联负序方向保护
1.
Operational experiences indicate that when a high resistance ground fault occurs on one of two parallel double-circuit lines under the strong-magnetic and weak-current operation condition,the pilot zero sequence directional protection of the non-fault line may mal-function while the pilot negative sequence directional protection will not.
通过实例分析说明平行双回线路在强磁弱电联系运行方式下,一回线路末端发生高阻接地故障时,非故障线路纵联零序方向保护会误动,而纵联负序方向保护不会误动,提出在使用纵联零序方向保护切除高阻接地故障的保护装置中,增加纵联负序方向保护,退出纵联零序方向保护以防止误动的发生,并讨论了纵联负序方向保护新方案,方案增加负序电抗继电器和负序电流、电压闭锁,并带小延时动作,从而确保平行线之一故障时,非故障线路纵联负序方向保护不会误动,而故障线路发生高阻接地故障时,纵联负序方向保护能带小延时可靠切除故障。
3) negative sequence directional pilot protection
负序方向纵联保护
1.
To eliminate the influence of distributed capacitance on negative sequence directional pilot protection,the authors propose a Bergeron model based accurate compensation algorithm.
为消除特高压输电线路中分布电容对负序方向纵联保护的影响,文章提出一种基于贝瑞隆模型的精确补偿算法。
4) pilot zero sequence directional protection
纵联零序方向保护
1.
Operational experiences indicate that when a high resistance ground fault occurs on one of two parallel double-circuit lines under the strong-magnetic and weak-current operation condition,the pilot zero sequence directional protection of the non-fault line may mal-function while the pilot negative sequence directional protection will not.
通过实例分析说明平行双回线路在强磁弱电联系运行方式下,一回线路末端发生高阻接地故障时,非故障线路纵联零序方向保护会误动,而纵联负序方向保护不会误动,提出在使用纵联零序方向保护切除高阻接地故障的保护装置中,增加纵联负序方向保护,退出纵联零序方向保护以防止误动的发生,并讨论了纵联负序方向保护新方案,方案增加负序电抗继电器和负序电流、电压闭锁,并带小延时动作,从而确保平行线之一故障时,非故障线路纵联负序方向保护不会误动,而故障线路发生高阻接地故障时,纵联负序方向保护能带小延时可靠切除故障。
5) negative sequence directional protection
负序方向保护
6) pilot negative sequence differential protection
纵联负序差动保护
补充资料：巢菜并序
【诗文】：
冷落无人佐客庖，庾郎三九困讥嘲。
此行忽似蟆津路，自候风烛煮小巢。
【注释】：
【出处】：
冷落无人佐客庖，庾郎三九困讥嘲。
此行忽似蟆津路，自候风烛煮小巢。
【注释】：
【出处】：
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条