摘要
220kV输电线路高频保护误动,给电网安全稳定运行带来极大的威胁。介绍了一起收信电平过高时会产生功率倒灌现象(针对GSF系列收发信机),造成功放损伤,引起高频保护误动,并提出了改进措施。
The high frequency protection of the 220 kV transmission line in inappropriate time poses a great threat for the safe and stable operation of the power grid. This paper introduces a phenomenon of power flowing backward when the input of the power is too high（specially for the GSF series of transceiver）, which might damage the power amplifying and mistakenly activate the protection system. In the end of the paper, it proposes some measures for improvement.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第24期188-189,193,共3页
Power System Protection and Control
关键词
收信过高
功率倒灌
高频保护
误动分析
receiver too high
power flow backward
high-frequency protection
maloperation analysis
