摘要
对采用小接地短路电流运行方式的 6 3k V及以下变电站运行中发生的单相接地、电压互感器熔断器熔断、电磁式电压互感器引起的铁磁谐振等现象进行了分析 ,并找出了几种常见现象的特点及参量变化的规律 。
In the substations of 63 kV and lower voltage class the oprating mode of small grounding current system is adopted. In this paper the single phase grounding, the fuses blowing and the ferro magnetic resonance cause by the type of electromagnetic PT occurred in these substations are analyzed. To offer the theoretical basis of correct judgement for operators, the similarities and differences among these phenomena are analyzed and the varing law of the parameters in the operation are found.
出处
《电网技术》
EI
CSCD
北大核心
2001年第12期55-59,共5页
Power System Technology
关键词
变电站
运行
小电流接地系统
电压互感器
等值电路图
small earthing current system
single phase grounding
potential transformer
fuse
ferro magmetic resonance
