摘要
本文提出一种发电机反时限过电流保护整定计算方案,解决由于发电机反时限过电流保护不能满足级差关系配合的问题。通过对DL/T 684-2012与GB/T 7064-2008的分析比较,本方案实现了极差关系的良好配合,最后以福清核电工程为例,给出详细计算过程,为定子绕组反时限过负荷保护的整定提供经验参考。
In this paper,a setting calculation scheme of generator inverse time over-current protection is proposed to solve the problem that the generator inverse time over-current protection can not meet the coordination of differential relationship.Through the analysis and comparison of DL/T 684-2012 and GB/T 7064-2008,this scheme realizes the good cooperation of range relationship.Taking Fuqing Nuclear Power Project as an example,the detailed calculation process is given to provide experience reference for colleagues.
作者
马铁军
郑泽银
陈炫
傅煜
陈俊
MATiejun;ZHENG Zeyin;CHENXuan;FU Yu;CHEN Jun(Fujian Fuqing Nuclear Power Co.,Ltd.,Fuqing 350318,China;NR Electric Co.,Ltd.,Nanjing 211102,China)
出处
《大电机技术》
2021年第3期59-62,共4页
Large Electric Machine and Hydraulic Turbine
关键词
发电机定子绕组反时限过负荷保护
定子绕组热容量常数
定值整定
整定原则
配合关系
generator stator winding inverse time overload protection
stator winding thermal capacity constant
setting value
setting principle
coordination relationship