摘要
针对单端工频电气量保护不能做到输电线路全线速动的缺点,在故障分析的基础上,提出了一种基于阻抗加速圆的瞬时动作判据。瞬时动作判据具有全线速动的优点,同时利用重合闸并根据动作后的信息纠正错误动作的结果。仿真实验验证了所提保护原理和动作判据的正确性。
Against the weakness of relay using single end main frequency,this paper presents the instant operation scheme based on resistance accelerating circle after fault analysis to implement accelerated trip. With the characteristics of accerlerated trip, this scheme can correct the error using reclosure based on the information after action. The scheme＇s principle and correctness are tested by simulation.
出处
《继电器》
CSCD
北大核心
2006年第3期5-8,共4页
Relay
关键词
输电线路
无通道保护
瞬时动作
阻抗加速圆
transmission line
non-communication protection
instant operation
resistance accelerating circle
