摘要
分析了220kV失灵保护的原理及接线回路,并着重论述了220kV线路(主变压器220kV侧断路器)失灵、母联(分段)保护在220kV母线故障且主变压器220kV断路器失灵时的保护动作逻辑,并结合1起220kV失灵保护误动案例,对失灵保护的启动回路,闭锁回路和跳闸逻辑进行了分析。
This paper introduces the principle of the 220 kV failure protection and its wiring circuit,focusing on the protection operation logic about the failure protection of the 220 kV line（also including the 220 kV breaker of the main transformer）,busbar （segment） circuit breaker protection,the failure protection of the 220 kV breaker of the main transformer caused by 220 kV bus bar fault,in combination with one case about a failure protection malfunction of the 220 kV protection,starting circuit,closed circuit and trip logic for the analysis.
出处
《安徽电力》
2012年第1期55-57,共3页
Anhui Electric Power
