摘要
分析了一起220kV线路发生A相高阻接地故障,线路保护装置在先收到收讯输入变位信号的情况下,主程序处理数据速度变慢,导致高频保护拒动,并对此提出预防及整改措施。
In this paper, it analyses an earth fault with high resistance in phase A on the 220kV transmission line. The relay has received the signal in the RX input in this case, but it results in the relay with high frequency protection can＇t operate. Based on it, the measure is provided in the prevention and rectification.
出处
《广东输电与变电技术》
2007年第6期32-34,共3页
Guangdong Power Transmission Technology
关键词
高阻接地故障
高频保护
程序冲突
弱电源侧保护
Earth fault with high resistance
High frequency protection
Program conflict
Weck side power protection
