摘要
分析了110 kV线路距离保护和电流保护在实际应用中各自的特点,提出线路微机保护应同时具备距离和电流保护的特点,以便更好地适应电网运行的要求;同时针对110 kV并列双回线路距离保护相继动作的性能进行了具体分析并提出改进建议;最后陈述引入准同期功能解决双端电源线路弱电侧测检同期重合闸难以成功的问题。
The characteristics of distance protection and current protection of 110 kV transmission line in actual application were analyzed, and the idea of adaptability of microcomputer - based protection with distance and current protection in power grid operation was presented. At the same time, the operating performance of distance protection for 110 kV parallel double circuit line was analyzed. The solution of full synchronizing function to solve the problem of detecting synchronous re - closing at weak power source side of double -ended power source was described.
出处
《电力设备》
2005年第2期51-54,共4页
Electrical Equipment
关键词
线路保护
距离保护
电流保护
后备保护
重合闸
transmission line protection
distance protection
current protection
back - up protection
re - closing
