摘要
通过具体实例,详细分析了LFP-901型微机保护工频突变量方向高频保护动作及保护装置在手合过程中工频突变量高频方向继电器工作原理,指出使用901型微机保护的线路,在线路送电过程中一定要保证收发讯机及高频通道正常工作,才能避免误动事故的发生。
Analyses the directional high -frequency protection of LFP -901A microcomputer against sudden changes in industrial frequency and the theory behind the operation of directional relay for sudden changes in industrial frequency while the protector is manually engaged,and points out the occurrence of mishandling can be avoided only by ensuring normal operation of both transceiver and high-frequency channel while electric power is being transmitted in the power lines protected with901microcomputer.
出处
《黑龙江电力》
CAS
2001年第6期403-404,419,共3页
Heilongjiang Electric Power
