摘要
线路差动保护能否采用采样值差动原理，是一个很有意义的新课题。介绍了采样值差动的基本原理，并以该原理为基础，结合Ｔ接线路差动保护的特点，提出了一种新的保护判据。理论分析和动模实验表明，该方法是可行的。
Implementation of differential protection according to every sampled value is a question for discussion.The basic principle of differential protection according to every sampled value is introduced and a new criterion is proposed based on it.Theoretical analysis and dynamic model test show that the new criterion is feasible and improvement is obtain in the ability against TA saturation and high resistance neutral grounding in comparison with conventional differential protection.
出处
《电力自动化设备》
EI
CSCD
1999年第2期21-23,共3页
Electric Power Automation Equipment
关键词
线路保护
纵差保护
微机
T接短线路
继电保护
sampled values
microcomputer differential current protection
algorithm
