摘要
随着电力网络结构的进一步扩大,220 kV电压等级电网成为目前电力网络的主网架。文中就220 kV及以上电压等级保护双重化配置实施过程中出现的第1组控制电源故障导致2组控制回路都不能完成跳闸任务的问题进行了分析讨论,提出并实施了改进措施。结果表明,改造后的方案完全满足设备运行的各种操作要求,保证了电力系统及压力闭锁回路电源的运行可靠性。
With the further expansion of the power network,220 kV network becomes the main power grid network.It occurs that two tripping circuit cannot act due to the first control power failure in 220 kV and higher voltage level networks with double protection.It is analyzed and the measure for improvement is given.The results show that the schemes can meet the requirements of equipment operation and guarantee the operation reliability of power system and power supply of pressure locking circuit.
出处
《电力系统自动化》
EI
CSCD
北大核心
2010年第16期97-99,共3页
Automation of Electric Power Systems
关键词
保护双重化
控制回路
电源故障
压力闭锁回路
可靠性
double protection
control loop
power failure
pressure locking circuit
reliability
