摘要
微机高频保护在220kV电网系统中应用广泛,其正确动作与否直接关系到电网的安全运行。通过对一次高频保护误动情况进行分析,讨论了WXB 15保护在双回线中区外故障切除后,功率倒方向时存在的问题,并提出了改进意见。
In 220 kV power network, the high-frequency protection based on microcomputer is very extensive, and its action is right or not directly affects power network's safe operation. By analyzing a maloperation event of high-frequency protection, it is discussed that the motion action of WXB-15 relay protection when power direction is changed in false.
出处
《太原理工大学学报》
CAS
北大核心
2005年第1期79-81,共3页
Journal of Taiyuan University of Technology
关键词
高频保护
误动
功率倒向
分析
high-frequency protection
maloperation
power direction
analysis
