中性点不接地系统产生铁磁谐振的原因及解决措施  

Reasons and Solving Measures of Ferromagnetic Resonance in Neutral Point Non-earthing System

作　　者：王敏 

机构地区：[1]国网河南睢县供电公司,河南商丘476900

出　　处：《科技与创新》2015年第17期148-148,150,共2页Science and Technology & Innovation

摘　　要：在变电运行中出现的铁磁谐振现象,极易导致电压互感器高压侧熔断器熔断,严重时甚至导致PT烧毁。通过介绍中性点不接地电网中出现的铁磁谐振现象,分析了出现此现象的原因,并结合具体的运行实践,提出了有效预防和消除这一现象的措施。The phenomenon of ferromagnetic resonance occurs in the operation of the transformer, which can easily lead to the high voltage side of the voltage transformer, and even lead to the PT burning. The phenomenon of ferromagnetic resonance in neutral point non-earthing power network is introduced in this paper, the reason of this phenomenon is analyzed, and combined with the specific operation of the practice, and the measures to effectively prevent and eliminate this phenomenon are put forward.

关 键 词：中性点 不接地电网 铁磁谐振 熔断器 

分 类 号：TM864[电气工程—高电压与绝缘技术]