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

作　　者：张敏 曹越 张杰武 杨大铭 ZHANG Min;CAO Yue;ZHANG Jiewu;YANG Daming(State Grid Zhejiang Electric Power Co.,Ltd.Ultra High Voltage Branch,Hangzhou 310000,China)

机构地区：[1]国网浙江省电力有限公司超高压分公司,浙江杭州310000

出　　处：《电工技术》2024年第12期81-83,共3页Electric Engineering

基　　金：国网浙江省电力有限公司科技项目(编号5211MR23-0008)。

摘　　要：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.

关 键 词：中性点不接地系统 铁磁谐振 自动消谐 电压互感器 

分 类 号：TM732[电气工程—电力系统及自动化]