摘要
以运行实践记录到的一些特殊故障，验证了ＬＦＰ—９００系列保护的性能，例如在振荡闭锁期间发生故障的保护性能；高电阻接地故障的保护性能；单侧电源线路故障受电侧选相跳闸的性能；单侧空充线路运行发生故障时，纵联保护的性能。传统保护对这些故障或拒动，或延时，或无能为力，而ＬＦＰ—９００系列保护则有严密的考虑，可正确、快速切除故障。
This paper describes the performances of LFP-901A and LFP-902A digital protection relays in some special faults encountered in the field,such as faults in the lock-off period during oscillation,high resistance ground faults,phase selection at the receiving end for the line supplied from one end,etc.They verify that LFP-901A and LFP-902A can trip correctly and rapidly in such situations.
出处
《电力系统自动化》
EI
CSCD
北大核心
1999年第14期24-28,共5页
Automation of Electric Power Systems
