摘要
在正常供电工作过程中,由电气设备所产生的并联谐振与由串联谐振电路所形成的双谐振,直接引起了电网电压在正常工作过程中的改变,增高对地电压。通常这些状况会破坏电网系统和机械设备正常的运转,甚至损坏电气设备的绝缘寿命。但根据在变电所中的实际工作,10 k V母线的谐振现象以220 k V变电所为例在一定时期内经常发生。文章具体剖析了这一情况,并提出了相应的对策。
In the normal power supply process,the parallel resonance generated by the electrical equipment and the double resonance formed by the series resonance circuit directly cause the change of the grid voltage and the increase of the voltage to the ground.Usually these conditions will destroy the normal operation of power grid system and mechanical equipment,and even damage the insulation life of electrical equipment.However,according to the author's actual work in the substation,the resonance phenomenon of 10kV bus takes 220kV substation as an example and often occurs in a certain period of time.This paper analyzes this situation and puts forward some concrete countermeasures.
出处
《大众科技》
2023年第2期79-82,共4页
Popular Science & Technology
关键词
谐振
避雷器
过电压
resonance
lightning arrester
overvoltage
