摘要
针对一起220kV线路发生区外相间故障,分析了保护装置误动原因,从保护装置自身及其外部回路提出了相应的防范措施,确保了线路安全可靠运行。
In view of the phase fault occurred with the 220kV lines outside, the author analyzes the cause of protection malfunction. And then the corresponding preventive measures is proposed from the aspects of protection device and external circuit, which ensures the reliable and safety of the lines operation.
出处
《水电能源科学》
北大核心
2012年第4期183-184,共2页
Water Resources and Power
关键词
220KV线路
保护通道联调
误动
可靠性
区外相间故障
动作分析
220 kV lines
protection channel joint debugging
malfunction
reliability
outside inter-phase fault
mo-tion analysis
