摘要
就某变电所CVT故障后电压异常信号在电压二次回路的传递进行了讨论,从原理上时电压回路传递故障信号的现象进行了分析,通过PSCAD/EMTDC专业电力系统仿真工具仿真,对该现象进行了验证,提出了各个电压回路N600分别实现一点接地的必要性。
The propagation of abnormal voltage signal produced by faulted CVT from one seeondary voltage circuit to another in a substation is discussed. The phenomenon of fault signal propagation in voltage circuit is analyzed in theory, and it is verified by special simulation tool (PSCAD/EMTDC software) of power system. The necessity that N600s in each voltage circuit should have one point grounded respectively is also proposed.
出处
《四川电力技术》
2006年第B12期13-14,26,共3页
Sichuan Electric Power Technology
关键词
电容式电压互感器
电压异常
电压回路
扰动传递
capacitor voltage transformer (CVT)
abnormal voltage
voltage circuit
disturbance propagation