摘要
末端电网水电站远离负荷中心,当电机带空载长线运行时,容易发生自励磁过电压。文章介绍发电机带空载长线的速算法、阻抗比较法、圆图法、充电特性法等4种自励磁判据,应用其中一种判据方法,作了实例分析计算。
In a hydropower station at gird end remote from load center, the generator experiences easily self-excitation induced over voltage in the case of operation with a long line of no load. This paper gives an introduction to the criterions for self-excitation in the case of operation with long line of no load such as quick calculation method, impedance comparison method, circle diagram method and charging characteristics method. A case calculation and analysis are also given.
出处
《青海电力》
2014年第F12期7-9,共3页
Qinghai Electric Power
关键词
自励磁
实例
计算
self-excitation
case
calculation
