35 kV电磁式电压互感器铁磁谐振分析与自动消谐

Ferromagnetic Resonance Analysis and Automatic Detuning of 35 kV Electromagnetic Voltage Transformer

铁磁谐振是非有效接地电力系统中较常见的现象,严重危及系统安全可靠运行。通过变电站实例,阐述变电站铁磁谐振原因,并研究措施防止谐振发生或降低其幅值。

Ferromagnetic resonance is a common phenomenon in ineffectively grounded power system,which seriously endangers the safe and reliable operation of the system.In this paper,the reasons of ferromagnetic resonance in substation are described in detail through an exemplary case,and the measures to prevent the occurrence of resonance or reduce its amplitude are studied.