摘要
本文论述中性点不接地系统中电压互感器一次侧熔丝和电压互感器在接地时熔断和烧坏的各种原因和处理方法,阐明了安装在电压互感器一次绕组中性点的消谐电阻有效限制电压互感器铁磁谐振和低频饱和电流。
The causations and treatment method on burn and melt-interrupt of VT and its primary side fuse when earthing fault is happened in the neutral point non-grounding system are discussed,and what the ferromagnetic resonance and low-frequency saturated current of VT are limited efficiently by anti-resonance resistance set in primary winding neutral point of VT are also explained in this article.
出处
《广东输电与变电技术》
2005年第6期65-67,共3页
Guangdong Power Transmission Technology
关键词
不接地系统
电压互感器
熔丝熔断
消谐器
电容电流
Non-grounding system Voltage transformer(VT) Fuse melt-interrupt Anti-resonance resistance Capacitance current
